| Names | |
|---|---|
| IUPAC names Calcium borate | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider |
|
| ECHA InfoCard | 100.034.131 |
| UNII | |
| |
| |
| Properties | |
| Ca3(BO3)2 | |
| Molar mass | 237.852 g/mol |
| Appearance | bluish white crystal |
| Hazards | |
| Flash point | Non-flammable |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) | 590 mg/kg (oral, mouse) |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Calcium borate is aborate salt ofcalcium with the molecular formula Ca3(BO3)2. It can be prepared by reactingcalcium metal withboric acid. The resulting precipitate is calcium borate. A hydrated form occurs naturally as themineralscolemanite[1],nobleite[2] andpriceite[3].
Calcium borate is used as abinder in some grades of hexagonalboron nitride forhot pressing.
Other uses include as aflame retardant inepoxy molding compounds, aceramic flux in someceramic glazes, reactive self-sealing binders inhazardous waste management,[4] additive for insect-resistantpolystyrene,[5]fertilizer, and in the production ofboron glasses.
It is used as a main source of boron oxide in the manufacturing of ceramic frits used in ceramic glaze or ceramic engobe for wall and floor ceramic tiles.[citation needed]
