Property：White or slight yellow oblique and square
crystals. Specific gravity: 2.168. Melting point: 271. It is soluble in water
and liquid ammonium easily. Water solution is appeared as alkaline (pH=9),
slightly soluble in methyl alcohol, ethanol and ether, with very strong
Usage：It can be used as mordant for textile dyeing, as
bleaching agent for silk and linen, metal heat treatment agent, electroplating
preventing corrosion agent, chemical analysis reagent, in pharmaceutical as
blood vessel dilatation agent, etc. We've passed the ISO-9002 qualification.
Packing：Net in 25KG/50KG plastic woven bag.