STABILIZED CALCIUM DIHYDROGEN PHOSPHATE DIHYDRATE FOR TOOTHPASTE

摘要

PURPOSE:To obtain calcium dihydrogen phosphate dihydrate with superior stability for toothpaste by mixing a mixture of prismatic or platy crystals and flat crystals of calcium dihydrogen phosphate dihydrate with amorphous magnesium phosphate contg. bound water as octahydrate or lower and by pulverizing the resulting mixture. CONSTITUTION:A mixture of prismatic or platy crystals and flat crystals of calcium dihydrogen phosphate dihydrate which is a superior base for toothpaste is stabilized with novel amorphous magnesium phosphate contg. bound water as octahydrate or lower and superior properties as a stabilizer. When the mixture is simply mixed with the magnesium phosphate, a sufficient stabilizing effect is not phroduced, so it is preferable that they are previously pulverized, well mixed, and further pulverized.