Description

Molecular formula ï&frac*4;šNa2SO4 CAS number ********6 Character description ï&frac*4;šWhite uniform fine particles or powder. Odorless, taste bitter and salty. Density 2.*8 g/cm. Melting **4 degrees Celsius. Soluble in water solubility in the ***0.4 degrees Celsius temperature increases with time and increased rapidly. Soluble in ethanol glycerol, insoluble in. A neutral aqueous solution. When the water below *2.*8 ° c, with ten water crystallization precipitation. Above *2.*8 ° c to 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 ***** BeiYan poisoning. In addition, also used for glass, building industry, etc.