Character description :White uniform fine particles
or powder. Odorless, taste bitter and salty. Density 2.68
g/cm. Melting 884 degrees Celsius. Soluble in water
solubility in the 0-30.4 degrees Celsius temperature
increases with time and increased rapidly. Soluble in
ethanol glycerol, insoluble in. A neutral aqueous solution.
When the water below 32.38, with ten water crystallization
precipitation. Above 32.38to anhydrous crystalline
precipitating sodium.
USES
Mainly used as filler of dyes and auxiliaries to adjust
dyes and auxiliaries concentration, can achieve standard
concentration. Also used for direct dyes, vulcanization
dye, reduction of dyed fabric dyes in promoting dye, direct
acid dyes in dye wool animal fiber silk and the slow dye,
also can be used as silk printing color protectants when
refining etc. Papermaking is used when cooking sulphate
pulp. The pharmaceutical industry as the antidote BeiYan
poisoning. In addition, also used for glass, building
industry, etc.