Sodium benzoate medicine use food additive Sodium benzoate Dye raw material Sodium benzoate
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product Name |
Benzoic acid, sodium salt |
Synonyms |
Sodium benzoate; Benzoic acid sodium salt; benzoic acid sodium crystalline; benzoic acid sodium sigmaultra; Benzoic acid,sodium salt |
Molecular Formula |
C7H5NaO2 |
Molecular Weight |
144.1032 |
InChI |
InChI=1/C7H6O2.Na/c8-7(9)6-4-2-1-3-5-6;/h1-5H,(H,8,9);/q;+1/p-1 |
CAS Registry Number |
532-32-1 |
EINECS |
208-534-8 |
Molecular Structure |
|
Melting point |
300℃ |
Boiling point |
249.3°C at 760 mmHg |
Flash point |
111.4°C |
Water solubility |
soluble |
Vapour Pressur |
0.0122mmHg at 25°C |
Safety Description |
S24/25:; |
COA-BP2013
Items |
Standard |
Appearance |
White or almost white, crystalline or granular powder or flakes, slightly hygroscopic |
Solubility |
Freely soluble in water, sparingly soluble in ethanol (90 per cent V/V) |
Identification |
A. It gives reactions (b) and (c) of benzoates |
|
B. It gives reaction (a) of sodium |
Appearance of solution |
clear and not more intensely coloured than reference solution Y6 |
Acidity or alkalinity |
Not more than 0.2 mL |
Halogenated compounds |
Maximum 200 ppm |
Heavy metals |
Maximum 10 ppm |
Loss on drying |
Maximum 2.0 per cent |
Assay |
99.0~100.5% |
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