Salicylic acid

Chemical name:

Benzoic acid,-2hydroxcy

Molecular formula:

 C7H6O3

CAS:

69-72-7

Standard:

BP/USP/EP

Physical and Chemical Properties:

White crystal or crystal powders,and sweets first and then hot,no chemical changes in the air.Atmospherically sublimation temperature over 76oC.Easily to decarboxylate and change into phenol and dioxide when heated atmospherically,and its aqueous solution appears acid reaction,becomes purple with FeCL3.Slightly dissolves in water but dissolves in boiling water easily.Dissolves in the ethanol or ether and slightly soluble in chloroform.

Specification:

Appearance:

White crystal or crystal powder

Color and clarity of solution:

Meet the requirement.

Loss of drying:

≤0.5%

Sulfate ash:

≤0.1%

Assay:

99.0-100.5%

Moisture:

≤0.40%

Heavy metals:

≤20ppm

Sulfate:

≤200ppm

M.P.:

≥158oC

Phenol:

≤0.10%

Usage:

Medicine of disinfection and antiseptic for dissolving skin cutin hyperplasia and skin mould infection.

Packing:

25kg in fiberboard-made pail attached with paper or polyethylene bag inside; to domestic sale, in polypropylene bag attached with polyethylene bag inside 25kg each.

Storage:

Dry place in sealed container.