CALCIUM HYDROXIDE COMPOSITION

摘要

PROBLEM TO BE SOLVED: To prevent the lowering of the activity of calcium hydroxide with the elapse of time. SOLUTION: A calcium hydroxide compsn. is obtained by adding a powder of carbide obtained by carbonating org. matter and a powder of a moisture absorbent to calcium hydroxide. Since carbide excluding moisture in air and a moisture absorbent are together added to calcium hydroxide, the carbonation on the surface of calcium hydroxide particles accelerated by moisture is effectively prevented by the synergistic effect of them and the lowering of the activity of calcium hydroxide is prevented to make it possible to keep high activity immediately after the production of calcium hydroxide over a long period of time.