Sodium phosphate is a generic term for a variety of salts of sodium (Na+) and phosphate (PO43−). Phosphate also forms families or condensed anions including di-, tri-, tetra-, and polyphosphates.
S 1887 (OTTO) Sodium dihydrogen orthophosphate, dihydrate, GR 99%+ Cas 13472-35-0 - used in detergents for softening water, and as an efficient anti rust solution.