items
Specifications
Characters
White or almost white, crystal powder
Identification
A
violet-red color is produced
B
Melting point of salicylic acid 156℃-161℃
Appearance of solution
Clear and colorless
Heavy metals
≤20ppm
Loss on drying
≤0.5%
Sulfate ash
≤0.1%
Related substances impurity A
≤0.15%
Impurity B
Impurity C
Impurity D
Impurity E
Impurity F
Unspecified impurity
≤0.05%
Total impurity
≤0.25%
Assay(on dried basis )
99.5%-101.0%