| Calcium borate | |
|---|---|
| Identifiers | |
| CAS number | 12007-56-6 |
| SMILES | [Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] |
| InChI | 1/4BO3.6Ca/c4*2-1(3)4;;;;;;/q4*-3;6*+2
|
| ChemSpider | 11253569 |
| Properties | |
| Molecular formula | Ca3(BO3)2 |
| Appearance | bluish white crystal |
| Hazards | |
| Flash point | Non-flammable |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
Calcium borate (Ca3(BO3)2), also called Gerstley borate is a bluish white crystal with a very defined structure. It can be prepared by reacting calcium metal with boric acid. The resulting precipitate is calcium borate.[1] A hydrated form occurs naturally as the minerals colemanite, nobleite and priceite.
One of its uses is as a binder in some grades of hexagonal boron nitride for hot pressing. Other uses are e.g. flame retardant in epoxy molding compounds, a ceramic flux in some ceramic glazes, reactive self-sealing binders in hazardous waste management[2], additive for insect-resistant polystyrene[3], fertilizer, and production of boron glasses.
Toxicity[]
Median lethal dose LD50 is 3.9 g/kg (intraperitoneal) and 5.9 g/kg (oral) for mice.[1]
References[]
- ↑ 1,0 1,1 Calcium Borate
- ↑ Calcium Borate Binders. (PDF) . Retrieved on 2010-02-08.
- ↑ Calcium borate infused foam building materials and the like and method of making same - US Patent 6667350 Claims. Patentstorm.us. Retrieved on 2010-02-08.
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