sublimed salicylic acid

Product Name: Medical salicylic Acid Time of Report: 2007.10.10 Pakage: 25kg of Paper Drum/bag. Test method: BP2000

Physical and Chemical Properties

White cube and powder,pale pink is allowed,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

Item	Standard	Results.
Appearance	White crystslor powder	Confirm
Assay	99.5%-100.5%	99.50%
M.P	158-161	159.5
Ash	≤0.1%	<0.055
Sulfates	≤200PPM	<200
Chloride	≤100PPM	<100
Loss on drying	≤0.5%	<0.25%
Heavy Metals	≤20PPM	<20

sublimed salicylic acid