Pharmaceutical quality calcium hypophosphate prepn. - by double decompsn. between sodium hypophosphate and calcium nitrate

摘要

Calcium hypophosphite (I) of pharmaceutical "Codex" quality is prepd. by double decompsn. between sodium hypophosphite and calcium nitrate. (I) is used for direct supply to living creatures having a deficiency of calcium and phophorus. Process avoids evapn. of large quantities of water, with the consequent cost of energy, and problems associated with its presence of insoluble calcium experienced in prior art.