Calcium Borate
Title: Calcium Borate
CAS Registry Number: 12007-56-6
Additional Names: Calcium pyroborate; calcium tetraborate
Molecular Formula: B4CaO7
Molecular Weight: 195.32
Percent Composition: B 22.14%, Ca 20.52%, O 57.34%
Line Formula: CaB4O7
Literature References: Prepn by direct fusion of B2O3 with CaCO3: Griveau, Compt. Rend. 166, 993 (1918). Various calcium borate minerals occur in nature. These include: colemanite, ginorite, inyoite, meyerhofferite, pandermite, priceite.
Derivative Type: Hexahydrate
Properties: Powder. Almost insol in cold, moderately sol in hot water; sol in dil acids.
Use: As flux in heavy-metal metallurgy; mfr of forsterite porcelain insulators; in glycol antifreeze; in fire-retardant paint.

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