p and g emulsifier 104
Sodium dodecyl sulfate
CAS: 151-21-3;12765-21-8;12738-53-3;1334-67-4
Molecular Formula: C12H25NaO4S
p and g emulsifier 104 - Names and Identifiers
p and g emulsifier 104 - Physico-chemical Properties
| Molecular Formula | C12H25NaO4S |
| Molar Mass | 288.38 |
| Melting Point | 206℃ |
| Water Solubility | ca. 150 g/L (20℃) |
| Solubility | Soluble in water, slightly soluble in alcohol, insoluble in chloroform and ether. |
| Appearance | White powder |
| Storage Condition | Room Temprature |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00036175 |
| Physical and Chemical Properties | White to slightly yellow powder, with slightly special odor. melting point 180~185 ℃ (decomposition) relative density 0.25g/ml solubility soluble in water. |
| Use | Used as detergent and textile auxiliaries, also used as toothpaste foaming agent, mine fire extinguishing agent, emulsion polymerization emulsifier, wool detergent, etc |
p and g emulsifier 104 - Risk and Safety
| Hazard Symbols | F - Flammable Xn - Harmful  |
| Risk Codes | R11 - Highly Flammable R22 - Harmful if swallowed R36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 2926 |
p and g emulsifier 104 - Upstream Downstream Industry
| Raw Materials | Chlorosulfonic acid Chlorosulfonic acid 1-Dodecanol 1-Dodecanol |
| Downstream Products | Acrylic acid Polymers erythromycin estolate |
p and g emulsifier 104 - Reference
| Reference Show more | 1. Yang Chunyan, Yan Limin, Xu Yanhua. Study on As Tolerance Characteristics and Tolerance Mechanism of a Strain with High Concentration of As(Ⅲ) [J]. Journal of Nanjing University of Technology (Natural Science Edition) 2012(01):61-65. 2. Rong Xinyu, Song Hongyan, Wang Huichun, et al. Preparation and Characterization of Itraconazole Nanocrystals [J]. Chinese Journal of Hospital Pharmacy 2017 37(010):916-921. 3. Diao Xiaoqin, Guan Wenting, Zhang Ying, et al. Effects of Freezing and Thawing Treatment on Physical and Chemical Properties of Myofibrillar Protein [J]. Chinese Brewing 2019 038(012):153-157. 4. Sun Jing, Chen Xiaonan, Liu Jiani, et al. Study on Anti-ischemic Brain Injury Active Components of Longxue Tongluo Capsule Based on Group Effect Relationship [J]. Chinese Journal of Traditional Chinese Medicine, 2019, 44(01):150-157. 5. Wen Qiuping, Li Chao, Xu Danping. Analysis of Physical and Chemical Properties of Zanthoxylum bungeanum Seed Shell Protein and Seed Kernel Protein [J]. Chinese Oil, 44(6). 6. Diao Xiaoqin, Guan Haining, Qiao Xiuli, et al. Effects of Ultrasonic Treatment on Physicochemical and Emulsifying Properties of Pork Myofibrillar Protein [J]. Food and Machinery, 2019(4). 7. Diao Xiaoqin, Guan Haining, Li Yang, etc. Effect of High Pressure Homogenization on Emulsification Characteristics and Structure of Myofibrillar Protein [J]. Food and Fermentation Industry, 2019(18). 8. Xu Jun, Min Jialing, Xiao Yong, Hu Lifang, Wu Lei, Dong Qiuhong, Xie Min, Lai Yan, Zhou Yaomin. Determination of Fipronil and Its Metabolite Residues in Livestock and Poultry Hair by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry [J]. Analysis Laboratory, 2020,39(10):1194-1198. 9. Zhang Zhaoyun, Zhou Qiping, Gong Qifu, Zhao Baotang, Shang Qi, Zhang Zhihua, Yang Fumin. Optimization of Extraction Process and Determination of Antioxidant Activity of Quinoa Seed Albumin from "Longli No.1" [J]. Food and fermentation industry, 2021,47(02):212-219. 10. Wang, Fangyuan, et al. "Facile nose-to-brain delivery of rotigotine-loaded polymer micelles thermosensitive hydrogels: in vitro characterization and in vivo behavior study." International journal of pharmaceutics 577 (2020): 119046.https://doi.org/10.1016/ 11. Huang, Hao, et al. "Immunomodulatory activities of proteins from Astragalus membranaceus waste." Journal of the Science of food and Agriculture 99.8 (2019): 4174-4181.https://doi.org/10.1002/jsfa.9650 12. Mou, Rong, et al. "Exploration of New Mutations for Resistance of Houseflies to Organophosphate Insecticides in Housefly Populations in Guizhou Province, china." (2020).https://doi.org/10.21203/rs.3.rs-41236/v1 13. Yang, Fan, et al. "Colloidal Particle-Stabilized Foam To Control the Coal Spontaneous Combustion: Stability Mechanism Analysis and Extinguishing Properties." Energy & Fuels 34.11 (2020): 14822-14831.https://doi.org/10.1021/acs.energyfuels.0c02694 14. Yuanyuan Liu, Zhaoxia Cai, Long Sheng, Meihu Ma, xiaoyun Wang,A magnetic relaxation switching and visual dual-mode sensor for selective detection of Hg2 based on aptamers modified Au @ Fe3O4 nanoparticles,Journal of Hazardous Materials,Volume 388,2020, 15. [IF = 9.297] Meng Chen et al. "NOx photocatalytic degradation on active concrete road surface - from experiment to real-scale application." J Clean Prod. 2011 Jul;19:1266 16. [IF = 2.447] Shuxing Xing et al. "Effects of various decellularization methods on histological and biomechanical properties of rabbit tendons." Exp Ther Med. 2014 Aug;8 (2):628-634 17. [IF = 10.588] Yuanyuan Liu et al. "A magnetic relaxation switching and visual dual-mode sensor for selective detection of Hg2 based on aptamers modified Au @ Fe3O4 nanoparticles." J Hazard Mater. 2020 Apr;388:121728 18. [IF = 5.875] Fangyuan Wang et al. "Facile nose-to-brain delivery of rotigotine-loaded polymer micelles thermosensitive hydrogels: In vitro characterization and in vivo behavior study." Int J Pharmaceut. 2020 Mar;577:119046 19. [IF = 5.833] He Baoshan et al. "An amperometric zearalenone aptasensor based on signal amplification by using a composite prepared from porous platinum nanotubes, gold nanoparticles and thionine-labelled graphene oxide." Microchim Acta. 2019 Jun;186(6):1-10 20. [IF = 4.952] Feilong Wei et al. "Oleogel-structured emulsion for enhanced oxidative stability of perilla oil: Influence of crystal morphology and cooling temperature." Lwt Food Sci Technol. 2021 Mar;139:110560 21. [IF = 3.765] Xia Xiaojing et al. "Preparation and evaluation of a novel solid dispersion using leucine as carrier." J Pharm Pharmacol. 2020 Jan;72(2):175-184 22. [IF = 3.605] Fan Yang et al. "Colloidal Particle-Stabilized Foam To Control the Coal Spontaneous Combustion: stability Mechanism Analysis and Extinguishing Properties." Energ Fuel. 2020;34(11): 14822-14831 23. [IF = 1.797] Tianwen Zheng et al. "Preparation and formation mechanism of calcium carbonate follow microspheres." J Cryst Growth. 2020 Nov;549:125870 24. [IF = 1.363] Yanying Chen et al."A major facilitator superfamily transporter in Colletotrichum fructicola (CfMfs1) is required for sugar transport, appressorial turgor pressure, conidiation and pathogenicity."Forest Pathol. 2019 Dec;49(6):e12558 25. [IF=3.352] Yuhui Bai et al."Development of an organic acid compound disinfectant to control food-borne pathogens and its application in chicken slaughterhouses."Poultry Sci. 2022 Mar;:101842 26. [IF=4.813] Zhao Puying et al."Characterization and heterologous expression of a novel Co2 -dependent leucyl aminopeptidase Amp0279 originating from Lysinibacillus sphaericus."Appl Microbiol Biot. 2022 Feb;106(3):1139-1149 27. [IF=3.246] Xu Renjie et al."Fabrication of Stable Apigenin Nanosuspension with PEG 400 as Antisolvent for Enhancing the Solubility and Bioavailability."Aaps Pharmscitech. 2022 Jan;23(1):1-11 28. [IF=7.514] Qin Liu et al."Zein-whey protein isolate-carboxymethyl cellulose complex as carrier of apigenin via pH-driven method: Fabrication, characterization, stability, and in vitro release property."Food Chem. 2022 Sep;387:132926 |
p and g emulsifier 104 - Nature
Open Data Verified Data
white or pale yellow powder or liquid, with a slightly oily odor. Soluble in water, can reduce the surface tension of aqueous solution, so that oil emulsification. It is not sensitive to alkali and hard water, and has good compatibility with anionic and non-ionic complex. This product is flammable, irritating and allergenic. Flammable in case of open flame and high heat. Toxic gases are released by thermal decomposition.
Last Update：2024-01-02 23:10:35
p and g emulsifier 104 - Preparation Method
Open Data Verified Data
obtained by sulfonation of decanediol (lauryl alcohol) with sulfur trioxide or chlorosulfonic acid, followed by alkali neutralization, bleaching and spray drying.
Last Update：2022-01-01 09:28:24
p and g emulsifier 104 - Standard
Authoritative Data Verified Data
This product is a mixture of sodium alkyl sulfate (C12 H25 Na04 S).
Last Update：2024-01-02 23:10:35
p and g emulsifier 104 - Trait
Authoritative Data Verified Data
- This product is white to light yellow crystal or powder; Characteristic odor.
- This product is soluble in water, almost insoluble in ether.
Last Update：2022-01-01 11:19:47
p and g emulsifier 104 - Introduction
There is a special smell. Dissolved in water is an opaque solution, and the solution is neutral. Can emulsify fat. There is decomposition in hot and humid air. There's a glossy feel. 1g is dissolved in 10ml of water to form an emulsion. The surface tension of the aqueous solution is small, and it is a neutral reaction. It is partially soluble in ethanol, and almost insoluble in chloroform, ether and light petroleum. Low toxicity, half lethal dose (rat, oral) 1288mg/kg. It's irritating. Solubility: 150g/l water (20°C),75g/l ethanol (20°C)
Last Update：2022-10-16 17:14:07
p and g emulsifier 104 - Use
Open Data Verified Data
has good emulsification, foaming, penetration, decontamination and dispersion properties, good biodegradability. It is mainly used as a foaming agent for toothpaste, shampoo, etc. It can also be used as emulsifier, fire extinguishing agent, foaming agent and textile industry additives, electroplating additives, etc. The commercial product is a mixture of sodium alkyl sulfate homologs based on sodium dodecyl sulfate.
Last Update：2022-01-01 09:28:24
p and g emulsifier 104 - Differential diagnosis
Authoritative Data Verified Data
- identification reaction of sodium salt in aqueous solution (1-10) of this product (General rule 0301).
- This product aqueous solution (1 - 10) plus hydrochloric acid acidification, slowly heated boiling for 20 minutes, the solution of sulfate identification reaction (General 0301).
Last Update：2022-01-01 11:19:47
p and g emulsifier 104 - Safety
Open Data Verified Data
rat oral LD50 1300mg/kg, fish semi-lethal dose (TML) 24.5 × 10-6. It has a stimulating effect on the mucosa and upper respiratory tract, and has a stimulating effect on the eyes and skin. Can cause allergic reactions in the respiratory system. Staff should be protected. Store in a cool, ventilated warehouse. Keep away from fire and heat source. Protection from direct sunlight. Keep the container sealed. Should be stored separately from the oxidant, acid, alkali.
Last Update：2022-01-01 09:28:24
p and g emulsifier 104 - Exam
Authoritative Data Verified Data
alkalinity
take l.O g of this product, add 100ml of water to dissolve, add 2 drops of phenol red indicator solution, and titrate with hydrochloric acid titration solution (0. lm o l/L). Consumption of hydrochloric acid titration solution (0. lm o l/L) should not exceed 0. 60ml.
sodium chloride
take about 5 g of this product, weigh it accurately, add 50ml of water to dissolve it, and neutralize it with dilute nitric acid (adjust p H value to 6. 5 to 10. 5, add potassium chromate indicator solution 2 m l, with silver nitrate titration solution (0. lm o l/L) titration. Silver nitrate titration per l M
The solution (0.1 M o l/L) corresponds to 5.844 mg of NaCl.
sodium sulfate
take about l g of this product, weigh it precisely, add water 1 0 m l to dissolve, add ethanol 1 0 m l, heat to near boiling for 2 hours, take advantage of heat filtration, filter residue is washed with boiling ethanol 1 0 0 m l, then water 1 5 0 m l is added to dissolve, and the container is washed, and the aqueous solution is heated to boiling with hydrochloric acid 1 0 m l, add 25% barium chloride solution 1 0 m l, place overnight, filter, filter, filter residue with water to no longer show the reaction of the gasification product, and burn to constant weight at 500~60 0 C, the total amount of residual residue and sodium chloride should not exceed 8 .0%. '
unesterified alcohol
take about 10g of this product, weigh it accurately, add 100ml of water to dissolve, Add 10 ml of ethanol, extract with n-hexane for 3 times, 50ml each time, if necessary, add sodium chloride to assist stratification, combine n-hexane layers, wash with water for 3 times, 50ml each time, then use anhydrous sodium sulfate to dehydrate, filter, and evaporate the filtrate on a water bath, dry at 105°C for 3 0 minutes, cool, weigh: This product contains no esterified alcohol should not pass 4. 0%.
Total fermentation quantity
take about 5g of this product, precision weighing, add water 150ml to dissolve, add hydrochloric acid 50m l, slowly heat reflux for 4 hours, let cool, extract the solution with ether for 2 times, each time, the ether layers were combined, evaporated to dryness on a water bath, dried at 105 ° C. For 30 minutes, allowed to cool and weighed. The total alcohol content of this product shall not be less than 59.0%.
Heavy metals
take this product l .O g, inspection according to law (General Principles 0821 second law), containing heavy metals shall not exceed 20 parts per million.
Last Update：2022-01-01 11:19:48
p and g emulsifier 104 - Category
Authoritative Data Verified Data
pharmaceutical excipients, wetting agents and emulsifiers.
Last Update：2022-01-01 11:19:48
p and g emulsifier 104 - Storage
Authoritative Data Verified Data
sealed storage.
Last Update：2022-01-01 11:19:48
p and g emulsifier 104 - Introduction
Sodium dodecyl sulfate (SDS) or Sodium lauryl sulfate SLS, NaC12H25SO4, one of the commonly used surfactants, is the main component of a detergent. Commonly used in the DNA extraction process, the protein is denatured and separated from the DNA. It is commonly misread as sodium dodecyl sulfate (SDS')(NaC12H25SO3). Sodium dodecyl sulfate (SDS) as a foaming agent is widely used in toothpaste, soap, body wash, shampoo, washing powder, and cosmetics. 95% of personal skin care products and household cleaning products contain sodium dodecyl sulfate.
Last Update：2024-04-16 10:07:44
p and g emulsifier 104 - Technical indicators
|
item |
indicator |
|||||
|
powder product |
needle-like products |
liquid product |
||||
|
top grade |
qualified product |
top grade |
qualified product |
top grade |
qualified product |
|
|
active content, %, ≥ |
94 |
90 |
92 |
88 |
30 |
27 |
|
petroleum ether soluble, <, ≤ |
1.0 |
1.5 |
1.0 |
1.5 |
1.0 |
1.5 |
|
inorganic salt content (calculated as sodium sulfate and sodium chloride), <, ≤ |
2.0 |
5.5 |
2.0 |
5.5 |
1.0 |
2.0 |
|
Ph (25 °c, 1% active in water) |
7.5-9.5 |
7.5 |
||||
|
whiteness (WG),≥ |
80 |
75 |
-- |
|||
|
moisture, |
3.0 |
5.0 |
-- |
|||
|
Heavy metals (in terms of lead),ppm |
20.0 |
|||||
|
arsenic, ppm |
3.0 |
|||||
Last Update：2024-04-10 22:29:15
p and g emulsifier 104 - Physical and chemical properties
White to slightly yellow powder, with slightly special odor. Soluble in water.
sodium dodecyl sulfate is a kind of anionic surfactant, which belongs to the typical representative of sulfate surfactant, referred to AS SDS, also known AS AS, K12, coconut oil alcohol sodium sulfate, sodium lauryl sulfate, foaming agent, the goods on the market are usually white to yellowish crystalline powder, non-toxic, slightly soluble in alcohol, insoluble in chloroform, ether, soluble in water, and anion, non-ionic complex, it has good emulsifying, foaming, foaming, penetration, decontamination and dispersion properties, rich foam, fast biodegradation, but the water soluble degree is inferior to fatty alcohol polyoxyethylene ether sodium sulfate (AES).
is not sensitive to alkali and hard water, but the stability under acidic conditions is inferior to the general sulfonate, close to AES, long-term heating should not exceed 95 ℃, irritation in the surfactant belongs to the medium level, 10% solution stimulation index 3.3, higher than AES, lower than the sodium dodecyl benzene sulfonate (LAS).
toxicity LD50 was 1300mg/kg. There is no evidence to prove that this product is carcinogenic, high dose may indeed be irritating to the skin, but in the general bathroom products used as a foaming agent when the concentration is limited, and is in line with the norms of the world, so don't worry.
Sodium dodecyl sulfate is the main component of detergent. Commonly used in the DNA extraction process, the protein is denatured and separated from the DNA. It is often misread as sodium dodecylsulfonate. As a foaming agent is widely used in toothpaste, soap, bath, shampoo, washing powder, and cosmetics. 95% of personal skin care products and household cleaning products contain sodium dodecyl sulfate.
Last Update：2024-04-16 10:13:07
p and g emulsifier 104 - Supplementary Information
| anionic surfactant | sodium dodecyl sulfate is a kind of anionic surfactant, which belongs to the typical representative of sulfate surfactant, referred to AS SDS, also known AS AS, K12, coconut oil alcohol sodium sulfate, sodium lauryl sulfate, foaming agent, the goods on the market are usually white to yellowish crystalline powder, non-toxic, slightly soluble in alcohol, insoluble in chloroform, ether, soluble in water, and anion, non-ionic complex, it has good emulsifying, foaming, foaming, penetration, decontamination and dispersion properties, rich foam, fast biodegradation, but the water soluble degree is inferior to fatty alcohol polyoxyethylene ether sodium sulfate (AES). It is not sensitive to alkali and hard water, but the stability under acidic conditions is inferior to the general sulfonate, close to AES, long-term heating should not exceed 95 ℃, irritation in the surfactant belongs to the medium level, 10% solution stimulation index 3.3, higher than AES, lower than the sodium dodecyl benzene sulfonate (LAS). Toxicity LD50 was 1300mg/kg. At present, there is no evidence to prove that this product is carcinogenic, and high doses may indeed irritate the skin, but the concentration is limited when it is used as a foaming agent in general sanitary products, and it is in line with the norms of all countries in the world, so don't worry. Sodium dodecyl sulfate is the main component of detergent. Commonly used in the DNA extraction process, the protein is denatured and separated from the DNA. It is often misread as sodium dodecylsulfonate. As a foaming agent is widely used in toothpaste, soap, bath, shampoo, washing powder, and cosmetics. 95% of personal skin care products and household cleaning products contain sodium dodecyl sulfate. |
| toxicity | Can be used safely in food, but the content of "(Twelve) sodium alkyl sulfate" should not be less than 90%(FDA,& sect;172.822,2000). LD50 1288mg/kg (rat, oral). |
| sodium dodecyl sulfate | there is a certain universality in the confusion and misuse of the two, both belong to anionic surfactants, the English abbreviations are SDS, sodium dodecyl sulfate (SDS), also known as sodium lauryl sulfate (SLS), is a sulfate ester salt, molecular weight 288.38, white or light yellow crystals, easily soluble in water, sodium dodecyl sulfonate (SDS), sulfonates, molecular weight 272.38, and sodium dodecyl sulfate in the structure of the difference is that twelve sodium dodecyl sulfate less one oxygen atom, carbon atoms and sulfur atoms directly linked. Pay attention to the difference between the two, in order to prevent misuse. |
| usage limit | (FDA,& sect;172.822,2000,mg/kg): dry protein 1000; Frozen protein 125; Liquid protein 125; Cotton candy foaming agent, 0.5% of the amount of gelatin used; As a surfactant for a solid beverage acidified by fumaric acid and a fruit beverage acidified by fumaric acid, 25; As a moisturizing agent for fats and oils, 10 (fat amount). According to (FDA,& sect;172.210,2000), it can be used as a surface coating agent for citrus fruits, and the dosage is limited to GMP. |
| Chemical properties | White to slightly yellow powder, with slightly special odor. Soluble in water. |
| purpose | sodium dodecyl sulfate has excellent decontamination, emulsification and foaming power, can be used as detergents and textile auxiliaries, also used as anionic surfactant, toothpaste foaming agent, mine fire extinguishing agent, fire extinguishing agent, emulsion polymerization emulsifier, pharmaceutical emulsion dispersant, shampoo and other cosmetic products, wool detergent, silk and wool fabric detergent. Flotation agents for metal beneficiation. |
| purpose | GB 2760-96 specifies processing aids for the food industry. Foaming agent; Emulsifier; Anionic surfactant. For cakes, beverages, protein, fresh fruit, fruit drinks, edible oil, etc. |
| purpose | 1, surfactant, decontamination, foaming, wetting agent, etc. 2, the lower ion pair reagent, in the demand is not high, than heptane, pentane sodium sulfonate cheap 3, as a raw material, material modification 4, capillary electrophoresis analysis, additives, generally formulated into molar solution using 5, other analytical methods will also be used, such as flow column analysis. |
| purpose | td is used as a washing and textile aid, and also used as a toothpaste foaming agent, a fire-extinguishing foam liquid, an emulsion polymerization emulsifier, an emulsifying dispersant for medicine, a cosmetic product such as a shampoo, and a wool detergent.|
| purpose | 1, surfactant, decontamination, foaming, wetting agent, etc. 2, the lower ion pair reagent, in the demand is not high, the price is lower than heptane, pentane sodium sulfonate 3, as a raw material, material modification 4, capillary electrophoresis analysis, additives, generally formulated into molar solution using 5, other analysis methods will also be used, such as flow column analysis. |
| purpose | biochemical analysis, electrophoresis, ion-pair reagents |
| production method | it is prepared by sulfating decanediol and chlorosulfonic acid at 40 to 50 ° C. To form lauryl sulfate, neutralizing with sodium hydroxide, bleaching, sedimentation and spray drying. |
| production method | The sulfonation reaction of decanediol and chlorosulfonic acid was carried out at 30-35 ° C. According to the molar ratio of 1:1.03, and the resulting sulfonate was neutralized with 30% sodium hydroxide to generate sodium dodecyl sulfate, which was bleached with hydrogen peroxide, the final product was obtained by spray-drying. Raw material consumption (kg/t) lauryl alcohol (C12>85%) 725 Solid alkali (NaOH>95%) 183 chlorosulfonic acid (>95%) 458 |
| production method | There are many methods for preparing sodium dodecyl sulfate, and the following two are the most commonly used at present. The reaction apparatus of sulfur trioxide method is a vertical reactor. Nitrogen was passed through a gas nozzle into the reactor at 32 °c. The nitrogen flow rate was 85.9 L · min-1. At 82.7 kPa, lauryl alcohol was introduced at a flow rate of 58 g · min-1. The liquid sulfur trioxide was passed into the flash evaporator at 124.1 kPa, The Flash temperature was maintained at 100 ℃, and the flow rate of sulfur trioxide was controlled at 0.907 · h-1. The sulfated product was then rapidly quenched to 50 °c and the aging device was driven into and left for 10-20min. Finally, it was neutralized with alkali by introducing a neutralizing beaker. Neutralization temperature control at 50 deg C, when the pH value of 7~8.5 when the discharge, that is, the liquid product. Spray-drying gave a solid finished product. Chlorosulfonation method Batch Process the lauryl alcohol was put into the reaction vessel and preheated to 30 °c. Chlorosulfonic acid in an excess of 0.03 mol to the theoretical amount is then sprayed as a mist into the alcohol under high-speed stirring. The reaction temperature was controlled at 30-35 °c. After completion of the sulfation reaction, it is neutralized to a pH of 7 to 30% with 8.5 alkali solution in a neutralization pot. Finally, 0.4% (mass) of hydrogen peroxide was used for bleaching. Spray-drying gave a solid. Can also be prepared according to the quality standard solution. The continuous process reaction apparatus is a tubular reactor. Lauryl alcohol was first saturated with hydrogen chloride. Lauryl alcohol was passed through the meter into the saturation chamber at a flow rate of 334 g · min-1 and hydrogen chloride at a flow rate of 40.5g · min-1. A solution of lauryl alcohol in hydrogen chloride was then passed into the reactor at 21.4 °c for reaction with chlorosulfonic acid. After gas-liquid separation of the reactants, The sulfated product flows from the bottom of the separator into the neutralization kettle. The liquid product was neutralized with 30% sodium hydroxide at 50 °c. Spray-drying gave a solid product. |
Last Update：2024-04-10 22:29:15
p and g emulsifier 104 - Use
is a white or yellowish tacky substance that is commonly used in the detergent and textile industries. It is an anionic surfactant. Soluble in water, and anionic, non-ionic complex compatibility, with good emulsification, foaming, penetration, decontamination and dispersion properties, widely used in toothpaste, shampoo, shampoo, shampoo, washing powder, liquid washing, cosmetics and plastics demoulding, lubrication and pharmaceutical, paper, building materials, chemical and other industries.
[use 1] used as detergent and textile auxiliaries, also used as toothpaste foaming agent, mine fire extinguishing agent, emulsion polymerization emulsifier, wool detergent, etc.
[purpose two] used as anionic surfactant, emulsifier and foaming agent
[purpose three] GB 2760-96 for the food industry processing aids. Foaming agent; Emulsifier; Anionic surfactant. For cakes, beverages, protein, fresh fruit, fruit drinks, edible oil, etc.
[use four] for drugs, cosmetics, synthetic resin emulsifier. Foaming agents for toothpastes, fire retardants. It is used as a detergent for fine fabrics of silk and wool. Flotation agents for metal beneficiation.
[use five] used as washing and textile auxiliaries, also used as toothpaste foaming agent, fire foam, emulsion polymerization emulsifier, pharmaceutical emulsion dispersant, shampoo and other cosmetic products, wool detergent.
[purpose 6] Biochemical Analysis, electrophoresis, ion pair reagent
Last Update：2024-04-10 22:29:15
p and g emulsifier 104 - Production method
1, the ten diol and chlorosulfonic acid according to the molar ratio of 1:1.03 feeding, sulfonation reaction at 30-35 ℃, the formation of the sulfonic acid ester with 30% sodium hydroxide neutralization, the formation of sodium dodecyl sulfate, hydrogen peroxide bleaching, the final product was obtained by spray-drying. Feedstock consumption (kg/t) lauryl alcohol (C12>85%) 725 Solid alkali (NaOH>95%) 183 chlorosulfonic acid (>95%) 458.
2, from the ten diol and chlorosulfonic acid in 40~50 Deg C by sulfation to produce lauryl sulfate, and sodium hydroxide neutralization, bleaching, sedimentation, spray drying.
3. Sulfur trioxide method: the reaction apparatus was a vertical reactor. Nitrogen was passed through a gas nozzle into the reactor at 32 °c. The nitrogen flow rate was 85.9 L · min-1. At 82.7 kPa, lauryl alcohol was introduced at a flow rate of 58 g · min-1. The liquid sulfur trioxide was passed into the flash evaporator at 124.1 kPa, The Flash temperature was maintained at 100 ℃, and the flow rate of sulfur trioxide was controlled at 0.907 · h-1. The sulfated product was then rapidly quenched to 50 °c and the aging device was driven into and left for 10-20min. Finally, it was neutralized with alkali by introducing a neutralizing beaker. Neutralization temperature control at 50 deg C, when the pH value of 7~8.5 when the discharge, that is, the liquid product. Spray-drying gave a solid finished product.
chlorosulfonation method
4. Batch Method: Put the lauryl alcohol into the reaction kettle and preheat to 30 °c. Chlorosulfonic acid in an excess of 0.03 mol to the theoretical amount is then sprayed as a mist into the alcohol under high-speed stirring. The reaction temperature was controlled at 30-35 °c. After completion of the sulfation reaction, it is neutralized to a pH of 7 to 30% with 8.5 alkali solution in a neutralization pot. Finally, 0.4% (mass) of hydrogen peroxide was used for bleaching. Spray-drying gave a solid. Can also be prepared according to the quality standard solution.
5. Continuous process: the reaction apparatus was a tubular reactor. Lauryl alcohol was first saturated with hydrogen chloride. Lauryl alcohol was passed through the meter into the saturation chamber at a flow rate of 334 g · min-1 and hydrogen chloride at a flow rate of 40.5g · min-1. A solution of lauryl alcohol in hydrogen chloride was then passed into the reactor at 21.4 °c for reaction with chlorosulfonic acid. After gas-liquid separation of the reactants, The sulfated product flows from the bottom of the separator into the neutralization kettle. The liquid product was neutralized with 30% sodium hydroxide at 50 °c. Spray-drying gave a solid product.
Last Update：2024-04-10 22:29:15
p and g emulsifier 104 - Carcinogenicity
This ingredient has been suspected to be a carcinogen for some time, and The Cosme, tend, and Fraud Association is therefore publicly available on its official website (www.ctfa.org). To clarify, there is currently no evidence that this component causes cancer. The American Cancer Society also says so. High doses of this substance may indeed be irritating to the skin, however its use as a foaming agent in general bathroom products is of limited concentration and is in accordance with the norms of all countries of the world.
Last Update：2024-04-10 22:29:15
p and g emulsifier 104 - Hazards and protection
hazard
- the physical properties and health hazards of sodium dodecyl sulfate aqueous solution: it has a stimulating effect on the mucosa and upper respiratory tract, and has a stimulating effect on the eyes and skin. Can cause allergic reactions in the respiratory system.
- explosion hazard: This product is flammable, irritating and allergenic. Flammable in case of open flame and high heat. By high heat decomposition of toxic gases.
- harmful combustion products: carbon monoxide, carbon dioxide, sulfide, sodium oxide.
contact treatment
- Skin Contact: remove contaminated clothing and rinse with plenty of running water.
- eye contact: lift the eyelid and rinse with running water or normal saline. The patient visited hospital.
- inhalation: leave the site to fresh air. Such as Dyspnea, to the delivery of oxygen. The patient visited hospital.
- ingestion: drink enough warm water to induce vomiting. The patient visited hospital.
- fire extinguishing method: fire-fighting personnel shall wear gas masks and full-body fire-fighting suits, and fire-fighting in the upward wind direction. Fire extinguishing agents: water mist, foam, dry powder, carbon dioxide, sand.
Last Update：2024-04-10 22:29:15
p and g emulsifier 104 - Emergency response and safety
sodium dodecyl sulfate-emergency treatment
Isolation leakage of contaminated area, restricted access. Cut off the fire source. Emergency personnel are advised to wear dust masks (full face mask) and anti-virus clothing. Avoid dust, sweep up carefully, put in the bag and transfer to a safe place. If there is a large amount of leakage, cover with plastic cloth and canvas. Collection and recovery or transport to waste disposal sites for disposal.
sodium dodecyl sulfate-safe operation
closed operation, strengthen ventilation. Operators must be specially trained and strictly follow the operating procedures. It is recommended that operators wear self-priming filter type dust masks, chemical safety glasses, anti-virus penetration work clothes and rubber gloves. Stay away from fire and heat source. No smoking is allowed in the workplace. The use of explosion-proof ventilation systems and equipment. Dust should be avoided. Avoid contact with oxidizing agents. Handling should be light and light unloading, to prevent packaging and container damage. Fire fighting equipment and emergency treatment equipment for leakage shall be provided with corresponding varieties and quantities. Harmful substances may remain in the empty container.
sodium dodecyl sulfate-safe storage
in a cool, ventilated warehouse. Keep away from fire and heat source. It should be stored separately from the oxidant, and mixed storage should not be avoided. With the corresponding varieties and quantity of fire fighting equipment. The storage area shall be provided with suitable materials for containment of the leakage.
sodium dodecyl sulfate-safety
engineering control: the production process is closed and the ventilation is strengthened.
Respiratory system protection: When the dust concentration in the air exceeds the standard, the self-suction filter dust mask must be worn. Air respirators should be worn during emergency rescue or evacuation.
Eye protection: wear chemical safety glasses.
Body Protection: wear anti-virus penetration work clothes.
Hand Protection: wear rubber gloves.
Other Protection: change work clothes in time. Maintain good hygiene practices.
Last Update：2024-04-16 10:14:27
p and g emulsifier 104 - Storage characteristics
Store at RT.
solid products: storage in a cool and dry place to prevent moisture and heat;
liquid product: prevent squeezing
[precautions for storage] store in a cool and ventilated warehouse. Keep away from fire and heat source. It should be stored separately from the oxidant, and mixed storage should not be avoided. With the corresponding varieties and quantity of fire fighting equipment. The storage area shall be provided with suitable materials for containment of the leakage.
Contact control/personal protection
Last Update：2024-04-16 10:15:06
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View History
Raw Materials for p and g emulsifier 104
Downstream Products for p and g emulsifier 104