Sodium Acetate,Anhydrous

Sodium Acetate,Anhydrous - Names and Identifiers

Name	Sodium acetate anhydrous
Synonyms	Sodium acetate sodium ethanoate Acetic acid sodium salt Anhydrous sodium acetate Acetic acid, sodium salt acetate sodium anhydrous Sodium Acetate,Anhydrous Sodium acetate anhydrous Sodium Acetate, Anhydrous Acetic acid sodium salt anhydrous
CAS	127-09-3
EINECS	204-823-8
InChI	InChI=1/C2H4O2.Na.3H2O/c1-2(3)4;;;;/h1H3,(H,3,4);;3*1H2/q;+1;;;/p-1

Sodium Acetate,Anhydrous - Physico-chemical Properties

Molecular Formula	C2H3NaO2
Molar Mass	82.03
Melting Point	58℃
Boling Point	117.1°C at 760 mmHg
Flash Point	40°C
Water Solubility	500 g/L (20℃)
Solubility	Soluble in ethanol.
Vapor Presure	13.9mmHg at 25°C
Appearance	White powder
Storage Condition	2-8℃
Sensitive	Easily absorbing moisture
MDL	MFCD00012459
Physical and Chemical Properties	Colorless transparent crystals or white particles. The anhydrous material had a melting point of 324 °c. Density 1.528g/cm3. Slightly soluble in ethanol, insoluble in ether
Use	Used in printing and dyeing, medicine, photography, also used as esterifying agent, preservative.

Sodium Acetate,Anhydrous - Risk and Safety

Safety Description

S24/25 - Avoid contact with skin and eyes.

Sodium Acetate,Anhydrous - Upstream Downstream Industry

Raw Materials	Sodium carbonate Acetic acid Sodium hydroxide
Downstream Products	2,3-Benzofuran 2-acetylpyrrole sodium hydrogen di(acetate) Benzidine Yellow G cefotaxim sodium salt

Sodium Acetate,Anhydrous - Reference

Reference

1. Zhang Xifeng, Liu Xiaoyan, Ma Yinshan, et al. Glycification Extraction of Lycium ruthenicum Polyphenols and Its End Products of Inhibition of Glycation [J]. Fine Chemicals, 2018, 035(003):395-401.
2. Jiang Qingling, Cong Meinan, Chen Haisheng, et al. Optimization of Culture Medium and Culture Conditions of Lactobacillus delbrueckii Bulgarian Subspecies [J]. Journal of Jimei University: Natural Science Edition, 2016, 21(006):401-409.
3. Li Huantong, Xu Zewen, Guo Xiaomin, Peng Lisa, Cao Yong, Xiao Suyao. Optimization of Extraction Process and Composition Analysis of Blueberry Anthocyanins by Continuous Phase Transformation at Low Temperature [J]. Food Science and Technology 2020 45(05):233-240.
4. Ning Qian, Chen Yu, Yan Zhiming. Solid Phase Extraction of Sulfonamides in Milk Based on SNW-1 Magnetic [J]. Journal of Fujian Agriculture, 2020,35(10):1154-1161.
5. [IF = 4.952] Tahidul Islam et al."Phenolic profiles, antioxidant capacities and metal chelating ability of edible mushrooms commonly consumed in China." Lwt Food Sci Technol. 2016 Oct;72:423
6. [IF = 14.919] Qiao Yuqian et al."Treatment of MRSA-infected osteomyelitis using bacterial capturing, magnetically targeted composites with microwave-assisted bacterial killing." Nat Commun. 2020 Sep;11(1):1-13
7. [IF = 7.514] Ziyun Xu et al."Effects of UV-C treatment and ultrafine-grinding on the biotransformation of ergosterol to vitamin D2, physiochemical properties, and antioxidant properties of shiitake and Jew's ear." Food Chem. 2020 Mar;309:125738
8. [IF = 4.677] Xu Xiaohan et al."Gut Microbial Metabolite Short-Chain Fatt Acids Partially Reverse Surgery and Anesthesia-Induced Behavior Deficits in C57BL/6J Mice." Front Neurosci-Switz. 2021 Jun;0:593
9. [IF = 3.517] Juan Wu et al."pH-sensitive magnetic drug delivery system via layer-by-layer self-assembly of CS/PEG and its controlled release of DOX." J Biomat Sci-Polym E. 2020;31(8):1057-1070
10. [IF = 7.514] Shengnan Zhu et al."Enzymic catalyzing affinity to substrate affects inhibitor-enzyme binding interactions: Inhibition behaviors of EGCG against starter digestion by individual and co-existing α-amylase and amyloglucosidase." FOOD CHEMISTRY. 2022 Sep;388:133
11. [IF = 7.514] Guangchun Song et al."Single-atom Ce-N-C nanozyme bioactive paper with a 3D-printed platform for rapid detection of organophosphorus and carbamate pesticide residues." Food Chem. 2022 Sep;387:132896

Sodium Acetate,Anhydrous - Introduction

Open Data Unverified Data

sodium acetate: Chemical formula CH3COONa. 3H2O. Colorless transparent crystals. Density 1.45g/cm 3. Melting Point: 58 °c. Water of crystallization was lost at 123 °c. The anhydrate had a density of 1.528g/cm3 and a melting point of 324 °c. Soluble in water, weakly alkaline. Slightly soluble in ethanol.

Last Update：2022-01-01 08:50:27

Sodium Acetate,Anhydrous - Supplementary Information

Open Data Unverified Data

solubility in water (g/100ml)

grams dissolved in water per 100 ml at different temperatures (°c):
36.2g/0℃;40.8g/10℃;46.4g/20℃;54.6g/30℃;65.6g/40℃
139g/60℃;153g/80℃;161g/90℃;170g/100℃

maximum allowable amount of food additive

The Chinese name of the additive is allowed to use the Chinese name of the food additive function maximum allowable usage (g/kg) maximum allowable residue (g/kg)
Sodium acetate food processing aids for food industry/generally should be made before the final product out, except for the provisions of the residues in food

category toxic substances
Toxic grade poisoning
Acute oral toxicity-rat LD50: 3530 mg/kg; Oral-mouse LD50: 6891 mg/kg
Irritation data skin-rabbit 500 mg/24 h mild; Eye-rabbit 10 mg mild
Flammable hazard characteristics; Thermal decomposition of toxic sodium oxide-containing gas
Storage and Transportation characteristics the warehouse is ventilated and dried at low temperature; Stored separately from oxidants and acids
Extinguishing agent water, foam, sand

Last Update：2022-01-01 08:50:28

Sodium Acetate,Anhydrous - Nature

Open Data Verified Data

white powder. Hygroscopic. Soluble in water, slightly soluble in ethanol, ether.

Last Update：2024-01-02 23:10:35

Sodium Acetate,Anhydrous - Preparation Method

Open Data Verified Data

sodium acetate trihydrate was dehydrated at 120 ° C. To obtain anhydrous sodium acetate.

Last Update：2022-01-01 09:26:38

Sodium Acetate,Anhydrous - Introduction

It's hygroscopic. Soluble in water, soluble in ethanol. Low toxicity, median lethal dose (rat, oral) 3530mg/kg.

Last Update：2022-10-16 17:13:03

Sodium Acetate,Anhydrous - Use

Open Data Verified Data

for the determination of lead, zinc, aluminum, iron, cobalt, antimony, nickel, tin. It is used as an esterifying agent for organic synthesis, as well as photographic Medicine, Medicine, printing and dyeing mordant, buffer, chemical reagent, meat preservation, pigment, tanning and many other aspects.

Last Update：2022-01-01 09:26:39

Sodium Acetate,Anhydrous - Production method

Open Data Unverified Data

calcium acetate and soda ash were subjected to double decomposition reaction to change into sodium acetate, and the reaction solution was concentrated to 26 ° Be, decolorized with activated carbon, cooled and crystallized, and centrifuged to obtain a finished product. When anhydrous sodium acetate needs to be obtained, the crystalline sodium acetate is re-melted, vacuum suction filtration is carried out, the mother liquor is cooled in a stainless steel tank, and then centrifuged, suction filtered and spin dried, electric heating method to make the crystal dehydration, drying, that is, to obtain anhydrous. It is also possible to directly react acetic acid with caustic soda to form sodium acetate.

Last Update：2022-01-01 08:50:28

Sodium Acetate,Anhydrous - Safety

Open Data Verified Data

rat oral LD50:3530mg/kg.

Last Update：2022-01-01 09:26:39

Sodium Acetate,Anhydrous - Storage and transportation conditions

Open Data Unverified Data

packed with a plastic bag, a woven bag or a hemp bag. Sodium acetate with deliquescence, storage and transportation should pay attention to moisture.

Last Update：2022-01-01 08:50:29

Sodium Acetate,Anhydrous - Preparation

Open Data Unverified Data

calcium acetate and soda ash are subjected to double decomposition reaction to change into sodium acetate, and the reaction solution is concentrated to 26 ° C., activated carbon is added to decolorize, then cooling crystallization is carried out, and centrifugal separation is carried out to obtain a finished product. When anhydrous sodium acetate needs to be obtained, the crystalline sodium acetate is re-melted, vacuum suction filtration is carried out, the mother liquor is cooled in a stainless steel tank, and then centrifuged, suction filtered and spin dried, electric heating method to make the crystal dehydration, drying, that is, to obtain anhydrous. It is also possible to directly react acetic acid with caustic soda to form sodium acetate.

instrument reagent

beaker, glass rod, alcohol lamp, filter paper, flat bottom flask, asbestos net. Sodium acetate crystals, sodium thiosulfate crystals, distilled water.

step

preparation of sodium acetate supersaturated solution: 500g of undeliquescent sodium acetate crystals () and 250 ml of distilled water were added to a 150 ml beaker, heated with micro-fire and stirred continuously, it was completely dissolved. Filter the solution while hot into a 500 ml clean and dry flat-bottomed flask (note! Do not drop the solution on the neck of the flask). After allowing to stand and cool, the lid was tightly capped with a clean rubber stopper.
preparation of supersaturated solution of sodium thiosulfate 250g of sodium thiosulfate crystals were placed in a dry and clean flat-bottomed flask, heated with a water bath, and dissolved in crystallization water. Allow to stand and cool. Cover the bottle with a clean rubber stopper.

Operation

small crystals of the same solute were introduced into the flask, and the crystals were quickly filled into the entire flask.

note

sodium acetate crystals are easy to absorb moisture, and the amount of drug can be appropriately increased.
dust can also make the supersaturated solution crystallize, so the flat bottom flask should be clean and the bottle mouth should be tightly capped.
The Crystal seeds should be fine and the crystal shape should be better, so that the crystal growth is slow and the phenomenon is clear.

purpose of experiment

It is recognized that supersaturated solution and supersaturated solution are not as stable as saturated solution.
In the creation of interesting chemistry textbook of the film "Wild Chemistry 1.5" there will be sodium acetate supersaturated solution crystallization of this experiment, was the image of the metaphor for "Optimus".

Last Update：2022-01-01 08:50:29

Sodium Acetate,Anhydrous - Classification

Open Data Unverified Data

previously, the known organic compounds were obtained from organisms such as animals and plants, so they were called organic compounds. To the 1920's, scientists have been using inorganic synthetic many organic matter, such as urea CO(NH2)2, acetic acid CH3COOH, fat, etc., so as to break the concept of organic matter can only be obtained from the organism. However, due to historical and customary reasons, people still use the name of organic matter.
the historical term "organic" can be traced back to the 19th century, when vientists believed that organic compounds could only be synthesized by life-force (vis vitalis). This theory is based on the basic difference between organic matter and "inorganic", inorganic matter is not synthesized by the vitality. However, this theory was later reversed. In 1828, the German chemist Friedrich Wohler first synthesized the organic compound -- urea {CO(NH2)2} with the inorganic ammonium cyanate. But this important discovery was not immediately recognized by other chemists, because ammonium cyanate has not yet been prepared using inorganic substances. Until Kolber (H . Kolbe) acetic acid (CH3COOH) was synthesized in 1844. Berthelot) in 1854, the synthesis of oils and fats, organic chemistry has entered the era of synthesis, a large number of organic compounds were synthesized by artificial methods.
The history of human use of organic matter is very long, and several ancient civilizations in the world have mastered the technology of making wine, vinegar and sugar. It is recorded that some relatively pure organic substances were prepared in ancient China, such as gallic acid (982-992), aconitine (1522 years ago), mannitol (1037-1101), etc; in the late 16th century, ether, Ethyl nitrate, ethyl chloride and so on were prepared in Western Europe. Because these organic matter are directly or indirectly from the animal and plant body, therefore, people will only get from the animal and plant body material called organic matter.
the development of synthetic organic compounds has enabled inorganic compounds to be synthesized into organic compounds [5], which has made it clear that there is no clear boundary between organic and inorganic compounds, but there are some differences in their composition and properties. In terms of composition, all organic matter contains carbon, most hydrogen, followed by oxygen, nitrogen, halogen, sulfur, phosphorus, etc, chemists began to define organic matter as a carbon-containing compound.
sodium acetate is therefore an organic substance. Organic matter refers to "carbon-containing compounds", but with the removal of CO, CO2, H2CO3, and carbonates. That is, other carbon-containing compounds are organic compounds except for CO, CO2, H2CO3, and carbonate. However, it should be noted that not all organic compounds are covalent compounds, such as "ferrocene" and the like.

Last Update：2022-01-01 08:50:30

Sodium Acetate,Anhydrous - Chemical reaction

Open Data Unverified Data

sodium acetate and concentrated sulfuric acid

ZCH3COONa H2SO4 & rarr;2CH3COOH (gas) Na2SO4
Conditions: heating
Phenomenon: there is an irritating gas, is the double decomposition reaction.
Description: This is a method for the preparation of relatively pure acetic acid in the laboratory.

sodium acetate and alkyl halides

(e. G., bromoethane) can be used to produce esters:
NaO2CCH3 BrCH2CH3 & rarr; C2H5O2CCH3 NaBr this reaction can be catalyzed by a cesium salt.

Home simple preparation

appliances: soda ash, vinegar, containers (such as discarded beverage bottles, can), plastic rods, small spoon.
Steps:

2 and a half spoonful of vinegar was poured into a container, and a half spoonful of soda ash was added.
The mixture was uniformly stirred with a plastic rod to dissolve as much as possible.
the experimental area was treated, and the 1:10 diluted experimental waste liquid was poured out to avoid environmental pollution.

phenomenon: a large number of bubbles quickly overflow, soda ash is gradually dissolved
Advantages: The method is simple, easy to find materials, you can experience the pleasure of the experiment at home.
Disadvantages: the generated sodium acetate can not be used for the experiment, there is no treatment facilities, the experimental accuracy is poor.
Principle: 2CH3COOH Na2CO3 = = 2CH3COONa CO2 & uarr; H2O (caused by partial ionization of weak acid)
Magic use magic use magic use magic use can be used to perform ice catching in water Magic

Last Update：2022-01-01 08:50:31

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