16558-02-4
SODIUM OLEATE
CAS: 16558-02-4;143-19-1
Molecular Formula: CH3(CH2)7CH:CH(CH2)7COONa
16558-02-4 - Names and Identifiers
| Name | SODIUM OLEATE |
| Synonyms | Osteum SODIUM OLEATE Oleic acid sodium salt Sodium 9-octadecenoate (9Z)-octadec-9-enoic acid sodium (9E)-octadec-9-enoate sodium (9Z)-octadec-9-enoate 9-Octadecenoic acid, sodium salt 9-Octadecenoic acid (Z)-, sodium salt |
| CAS | 16558-02-4 143-19-1 |
| EINECS | 205-591-0 |
| InChI | InChI=1/C18H34O2.Na/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h9-10H,2-8,11-17H2,1H3,(H,19,20);/q;+1/p-1/b10-9+ |
16558-02-4 - Physico-chemical Properties
| Molecular Formula | CH3(CH2)7CH:CH(CH2)7COONa |
| Melting Point | 232-235 ℃(lit.) |
| Boling Point | 360°C at 760 mmHg |
| Flash Point | 270.1°C |
| Solubility | Soluble in about 10 parts of water, about 20 parts of ethanol, insoluble in benzene and ether. |
| Vapor Presure | 3.7E-06mmHg at 25°C |
| Appearance | White powder |
| Storage Condition | Room Temprature |
| Sensitive | Sensitive to light and air |
| MDL | MFCD00004438 |
| Use | Used as anionic surfactant and fabric waterproofing agent |
16558-02-4 - Upstream Downstream Industry
| Raw Materials | SODIUM OLEATE |
16558-02-4 - Reference
| Reference Show more | 1. Dong Shujia, Qin Weishuai, Liu Canzhen, et al. Effects of Low Nitrogen on Ester Synthesis in Saccharomyces cerevisiae Fermentation [J]. Chinese Brewing 2018 037(001):149-154. 2. High-end, Ye Ping, Wang Yan, Liao Dongna, Deng Jianbin, Chen Rong, Qi Na. Preliminary Development of Sunscreen Cream with Flos Lonicerae-Chrysanthemum Chrysanthemum Extract [J]. Guangzhou Chemical Industry, 2020,48(22):104-107. |
16558-02-4 - Trait
Authoritative Data Verified Data
- This product is white to yellowish powder and lumps.
- This product is soluble in warm water, slightly soluble in 90% ethanol.
iodine value
take an appropriate amount of this product, weigh it accurately, put it in a 250ml dry flask, add 10ml of chloroform, add 25ml of iodine bromide solution accurately, pack it, shake it to dissolve it, in the dark place for 30 minutes, according to the determination (General 0713>, iodine value should not be less than 60.
peroxide value
should not be greater than 10 (General 0713>.
Last Update：2022-01-01 11:23:36
16558-02-4 - Introduction
Slightly like butter. The aqueous solution is alkaline due to hydrolysis, but the alcohol solution is not hydrolyzed. It has good solubility in hot water, the aqueous solution is light yellow and transparent, alkaline, soluble in ethanol, and the solution is neutral; it is slowly oxidized in the air to darken the color
Last Update：2022-10-16 17:14:15
16558-02-4 - Exam
Authoritative Data Verified Data
alkalinity
take this product and make a solution containing lOmg per lm l with water, and determine it according to law (General rule 0631>, p H value should be 9.0-11. 0.
color of solution
take this product and make a solution containing lOmg per lm l with water. Compared with the yellow No. 2 Standard Colorimetric solution (General rule 0901 first method), it should not be deeper.
free fatty acids
take this product 0.25g) precision weighing, set the Erlenmeyer flask 9 plus ethanol-ether (1 : 1) mixture (immediately before the use of phenolphthalein indicator solution 0. lm l, with 0. lm o l/L sodium hydroxide solution titrated to micro pink) 20ml, shake to dissolve, with sodium hydroxide titration solution (O.Olmol/L) titration to solution red, consumption of sodium hydroxide titration solution (0. O lm o l/L) should not exceed the volume of 2. Oml.
other fatty acids
under oleic acid, with peak area normalization method, containing capric acid shall not exceed 1.0%; Lauric acid should not exceed 5.0%; Myristic acid should not exceed 20.0%; Palmitic acid should not exceed 20.0%; Palmitoleic acid should not exceed 0.5%; Stearic acid should not exceed 20.0%; Linoleic acid should not exceed 1.5.0%; Linolenic acid should not be over 1.0%.
tocopherol
operation in the dark, take the product and the right amount of force-a-tocopherol reference, respectively with n-hexane-isopropanol-water (40=50=8) the mixed solution was prepared to contain 40mg and 0.1 M g solution, as a test solution and a control solution. According to the thin layer chromatography (General 0502) test, take the above two solutions each 20 (x l, respectively, on the same silica gel G thin layer plate, with n-hexane-diethyl ether (70 : 30) for the development of the agent, expand, dry, spray with copper sulfate solution (take copper sulfate 1 0G, dissolve with appropriate amount of water, add human phosphoric acid 8ml, dilute with water to 1 0 0M l, obtained), after drying for 1 0 min at 170°C, check immediately, if the test solution shows impurity spots corresponding to the reference solution, the color of the test solution should not be deeper than that of the reference solution (not more than 0.25%)..
sodium
take this product O . l g, precision weighing, quartz or platinum crucible, in the electric furnace slowly heated to complete carbonization, move to muffle furnace, heated to 600°C within 1 hour, heat for another 12 hours, cool, residue 0. The 5% hydrochloric acid solution was transferred to a 100ml measuring flask and diluted to the scale. In addition, accurately measure the sodium standard solution (containing Na + lmg per lm l) lm l, 2ml, 3 m l, and separate it into a 25ml measuring flask, the solution was diluted to the mark with 0-5% hydrochloric acid solution and shaken to obtain a control solution. The test solution and the reference solution can also be diluted appropriately to adapt to the sensitivity of different instruments, but the dilution ratio of the test sample and the reference should be the same. According to flame photometric method (General 0407) determination, calculated by Standard curve method, the content of sodium should be 7 .0% ~ 8 .5%.
oleic acid
take this product about O .lg, precision weighing, put 2 5L Erlenmeyer flask, add 14% boron trifluoride methanol solution 2ml, reflux 3 0min, add n-heptane 4 m l, continue reflux 5 min, cool, add saturated gasification sodium solution 10 m l, shake for 15 seconds, place, aspirate the supernatant, wash with water 3 times, 2 m l each time, and filter the organic layer through anhydrous sodium sulfate layer, the filtrate was continued as a test solution. Another sodium oleate control was treated with the same method as the control solution. The fatty acid methyl ester peak identification solution was accurately taken (prepared by using n-hexane to make each lm l containing 0 methyl decanoate, methyl laurate, methyl myristate, methyl palmitate, methyl palmitoleate, methyl stearate, methyl linoleate and methyl linolenic acid). lmg mixed solution), reference solution and test solution each 1m, injection of human gas chromatography, according to the gas chromatography method (General 0521), with polyethylene glycol as the stationary liquid capillary column as the column, the inlet temperature was 250°C and the detector temperature was 280°C. The initial temperature is 60°C, held for 5 minutes, and the oleic acid shall not be less than 240 as calculated by the @ area normalization method, measured at 6°C per minute to 50.0% "C for 25 minutes.
ethanol
take this product about O .lg, precision weighing, top empty bottle, precision add water 5 m l, sealed, as a test solution. Another appropriate amount of ethanol, precision weighing, quantitative dilution of water made per l lm containing about 0. lm g solution, the precision of 5 m l, in the top empty bottle, sealed, as a reference solution. According to the determination method of residual solvent (General rule * 0861 second method), the capillary column with 100% dimethyl polysiloxane as stationary liquid is used as the chromatographic column; The starting temperature is 40°C, the maintenance time is 10 minutes, and the temperature is 35°C to 240°C per minute, it was maintained for 5 minutes; The inlet temperature was 250V, the detector temperature was 280°C; The headspace equilibrium temperature was 80°C, and the equilibrium time was 30 minutes. The test solution and the reference solution were injected by Headspace, and the chromatograms were recorded. The peak area shall be calculated according to the external standard method, and the content of ethanol shall not exceed 0.5%.
loss on drying
take about 2.0g of this product, weigh it accurately, dry it at 105°C for 1 hour, and the weight loss shall not exceed 0831 (general rule).
precious metals
This product l . O g, inspection according to law (General Rule 0 8 2 1 second law), containing heavy metals shall not exceed 10 parts per million.
arsenic
take this product 0.5g, precision weighing, put 50ml cone bottle, add nitric acid-perchloric acid (4 : 1) mixed solution 15ml, slowly heat on a hot plate at 120°C until yellow smoke disappears, raise the temperature to 160°C until the solution volatilizes to about lm l, and let it cool (if there are still oily substances, add appropriate amount of the above mixed acid, repeat the above digestion process), the solution should be clear. Transfer to a 10ml measuring flask with water, wash the container with water, combine the washes in the measuring flask and dilute to the scale, shake, and stock solution as a test. Take 1ml stock solution of the test sample, put it in a 10ml measuring flask, add 10% potassium iodide solution (lm l) and hydrochloric acid (3 m l), dilute it to the scale with water, and shake it well, as a test solution (B ) ; Another precise amount of sample stock solution lm l, 10ml flask, plus arsenic standard solution (0. lp g /m l) l m l, add 10% potassium iodide solution lm l, hydrochloric acid 3ml, dilute to the scale with water, shake, as A control solution (A ); Prepare blank solution in the same method. Take the blank solution, the test solution and the reference solution, heat in the 8CTC water bath for 3 minutes, let cool to room temperature, inhale the hydride generator, and use 1% sodium borohydride -0 .3% sodium hydroxide as reducing agent; Hydrochloric acid solution (1 - 100) as carrier liquid; According to Atomic Absorption Spectrophotometry (General Principles 0406 second method), in 193. The absorbance value was measured at 7nm wavelength, the measured value of the control solution (A) was a, the measured value of the test solution (B) was B, and the B value should be less than (a-B)(0.0002%).
pyrogen (for injection)
take about 0.4g of this product, add 20ml of water for injection, heat in 38°C water bath and shake to dissolve completely, adjust the p H value to 8 with lm o l/L hydrochloric acid solution. 0, plus sodium chloride injection made per lm l containing 1. 3mg solution, according to the law (General rule 1142), the dose of rabbit body weight per l k g slow injection of 10ml, should meet the requirements.
microbial limit
Take 10g of this product, add sterile sodium chloride-peptone buffer (pH 7.0) to 20 0M l preheated to 45-C containing 3% polysorbate 80, homogenate to make 1: 20 of the test solution. Take 20 m l of test solution, add 0.5% ml of sterile sodium chloride-peptone rinse solution (pH7.0) preheated to 4 5 -C containing polysorbate 8 0, and filter by membrane filtration, the filter membrane is rinsed three times with the rinsing solution, 1 0 m l each time, then rinsed twice with sterile sodium chloride-peptone rinsing solution (PH 7.0) preheated to 4 5°C, 100ml each time, the number of bacteria was checked by taking the membrane and sticking the membrane to culture; The test solution was taken for examination according to the routine method (General rule 1105 and general rule 1106). The total number of aerobic bacteria per l g of test product shall not pass lO O c f u, the total number of molds and yeasts shall not pass lO O c f u, and Escherichia coli shall not be detected.
Last Update：2022-01-01 11:23:38
16558-02-4 - Category
Authoritative Data Verified Data
pharmaceutical excipients, foaming agents and stabilizers.
Last Update：2022-01-01 11:23:38
16558-02-4 - Storage
Authoritative Data Verified Data
protected from light, sealed, stored at -20°C ± 5°C.
Last Update：2022-01-01 11:23:39
16558-02-4 - Reference Information
| Use | Used as anionic surfactant and fabric waterproofing agent |
Last Update：2024-04-09 02:00:03
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Raw Materials for 16558-02-4