Calcium borate

Synonym(s):Calcium borate

CAS NO.：13701-64-9
Empirical Formula: B2Ca3O6
Molecular Weight: 237.85
MDL number: MFCD00049397
EINECS: 237-224-5
SAFETY DATA SHEET (SDS)
Update Date: 2025-03-04 21:26:23

What is Calcium borate?

Chemical properties

white powder(s); prepared by fusion of CaCO3 and B2O3; used as a flux in metallurgy, in fire-retardant paint [MER06] [STR93]

The Uses of Calcium borate

Calcium metaborate can be used as an additive to improve the performance of nickel-metal hydride batteries.
It is used as a precursor to synthesize calcium hexaboride (CaB₆) by electro-reduction that can be used as high capacity anode for aqueous primary batteries.
It can also be employed in the preparation of calcium-doped borate glass for thermoluminescent dosimeters (TLD).

Flammability and Explosibility

Not classified

Agricultural Uses

The calcium salt of boric acid is called calcium borate. Colemanite is a source of calcium borate, (Ca₂B₆O₁₁·5H₂O),from which boron is extracted. It can also be added to overcome boron deficiency.

Properties of Calcium borate

Melting point:	986 (anhydrous) [CRC10]
Density	2[at 20℃]
form	Powder
color	White
Water Solubility	g/100g H2O: 2.32 (0°C), 2.72 (20°C), 8.70 (100°C) [LAN05]
Exposure limits	ACGIH: TWA 2 mg/m3; STEL 6 mg/m3
CAS DataBase Reference	13701-64-9(CAS DataBase Reference)
EPA Substance Registry System	Boric acid (HBO2), calcium salt (13701-64-9)

Safety information for Calcium borate

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.