Calcium borate

Calcium borate
Identifiers
CAS Number	12007-56-6 ;
3D model (JSmol)	Interactive image; Interactive image;
ChemSpider	118685 ;
ECHA InfoCard	100.034.131
PubChem CID	134660;
UNII	80UKT9A6QU ;
CompTox Dashboard (EPA)	DTXSID1091555 ;
	InChI InChI=1S/2BO3.3Ca/c22-1(3)4;;;/q2-3;3+2 Key: VLCLHFYFMCKBRP-UHFFFAOYSA-N ; InChI=1/4BO3.6Ca/c42-1(3)4;;;;;;/q4-3;6+2 Key: KKKYJLNWARAYSD-UHFFFAOYAA; InChI=1/2BO3.3Ca/c22-1(3)4;;;/q2-3;3*+2 Key: VLCLHFYFMCKBRP-UHFFFAOYAG;
	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-]; [Ca+2].[Ca+2].[Ca+2].[O-]B([O-])[O-].[O-]B([O-])[O-];
Properties
Chemical formula	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 their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Calcium borate (Ca₃(BO₃)₂), also called Gerstley[1] 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. 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.

Also it used as a main source of boron oxide in the manufacturing of ceramic frits that used in the ceramic glaze or ceramic engobe for wall and floor ceramic tiles.

References

For James Gerstley (according to Glazy.org, Gerstley Borate) after whom Gerstley, California is also named
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 Archived 2011-06-12 at the Wayback Machine. Patentstorm.us. Retrieved on 2010-02-08.

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[1] For James Gerstley (according to Glazy.org, Gerstley Borate) after whom Gerstley, California is also named

[2] Calcium borate binders. (PDF) . Retrieved on 2010-02-08.

[3] Calcium borate infused foam building materials and the like and method of making same - US Patent 6667350 Claims Archived 2011-06-12 at the Wayback Machine. Patentstorm.us. Retrieved on 2010-02-08.