| Strontium Hydrophosphite, SrHPO3.H2O, or H4Sr2P2O7.2H2O, is obtained as a crystalline precipitate, not readily soluble in water, by the interaction of ammonium phosphite with strontium chloride. It loses water at 200° C. On boiling with water a basic salt is formed, and after calcination strontium pyrophosphate is left. |