Production method of stannous pyrophosphate
Stannous pyrophosphate, chemical formula Sn2P2O7, molecular weight 411.32, amorphous powder. It is prepared by heating tin (Ⅱ) diphosphate at 350 ~ 400℃. Production method of stannous pyrophosphate: In the double decomposition method, stannous chloride and sodium pyrophosphate were dissolved in water, and an appropriate amount of activated carbon was added for decolorization and filtration to obtain a clean solution. Then add water to each solution and adjust to a certain concentration. Sodium pyrophosphate solution was first added to the reactor, and [...]
