Properties White or colorless crystals, efflorescent in air, easily soluble in water but not in organic solution. Its water solution is alkaline. PH value of 1% solution is 12.1, relative density at 1.62, melting point is 73.4℃ Uses Used as a water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing and so on.
|Main contents % >=</td>||98|
|Phosphorus pentoxide % >=</td>||18.3|
|Chloride, as cl % =<||0.3|
|Sodium oxide, as Na2O % =<||15.5-19|
|Sulfate, as SO4 % =<||0.5|
|Water insoluble % =<||0.1|