Sulfanilic acid
Formula: C6H7O3NS
Molecular weight:173,19(as international relative atom mass 1997)
Excutive standard: Hg/t3678-2000
Cas no:120-57-3
Parameters:
Appearance: White or grey crystal
Content of sulfanilic acid: >99%
Content of anilin: <0.02%
Insoluble substance in water: <0.1%
Solvable state in sodium carbonate: Tran***rent
Property:
It is white powder and turned into white crystal when it absorb water in the air and attach one molecular of crystal water. Crystal water will be lost when the temperature has reached 100*c, density:1.485(25*c/4*c), slightly soluble in cold water, benzene, ethanol, and ether, melting point:288*c, decompose at 300*c, it shows obvious acidic and solvable in boiling water sodium carbonate and sodium hydroxide. |
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