CAS No.: 7758-29-4
Other Names: STPP
Grade Standard: Food Grade, Industrial Grade
Appearance: White powder
White powder; Easily soluble in water;
Melting point: 622° C
It has the salient chelating capacity to ions of ca and mg etc.; Can soften hard water to make suspension solution become into clear solution; Weak alkalinity; No corrosiveness; It is a surfactant, and has got outstanding emulsification to lubricants and fat.
Main content: 94%min
Water insoluble matter: 0.1%max
pH value of 1% water solution: 9.2-10.0
Bulk density(g/cm3): 0.5-0.7/0.7-0.95
Used as one of the main auxiliaries for synthetic detergent, synergist for soap; Water softener, tanning agent for leather making, auxiliary for dyeing; As an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc. As an oil contamination resistance agent in paper production.