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SALICYLIC ACID

CAS No.:69-72-7
Molecular Formula:C7H6O3
Molecular Weight:138.12
INQUIRY

Salicylic acid is a fat-soluble organic acid. It is a is white crystal or crystalline powder. It has no odor and is slightly sweet and then hot. It has no change in the air. It can be sublimated at atmospheric pressure above 76 °C. It is easily decarboxylated by atmospheric pressure to form phenol and carbon dioxide. The aqueous solution is acidic and reacts with FeCl3 in purple. This product is slightly soluble in water, soluble in boiling water, soluble in ethanol or ether, slightly soluble in chloroform.

Test Items	Specs
Appearance	White crystal or white Crystalline powder
Assay, %	99.0-100.5
Solubility	Slightly soluble in water, freely soluble in ethanol (96 per cent),sparingly soluble in methylene chloride
Loss on drying ,%	≤0.5
Identification A. Melting point of salicylic acid, ℃	158-161
Identification B. IR-Spectrum	Should be complied with reference Spectrum
Chlorides,ppm	≤100
Sulphate,ppm	≤200
Sulphated ash,%	≤0.1
Heavy Metals, ppm	≤20
Appearance of solution	Clear & colourless
Related Compounds, %	≤0.20