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 76^oC.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.:

≥158^oC

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.