ca: BORAT DE CALCI
Calcium Borate is an insoluble form of boron a natural frit. Used as a flux in all types of glaze, it also reduces crazing tendencies. It develops opalescence typical of boron compounds and in large quantities a broken mottled surface. A suitable raku glaze.
Calcium Borate (Ca3(BO3)2) is an insoluble form of boron, a natural frit, used as a flux in all types of glazes, it reduces crazing. It is a bluish white crystal with a very defined structure and can be prepared by reacting calcium with boric acid. The resulting precipitate is calcium borate.