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Sigma-Aldrich

Calcium metaborate

technical, 39-44% B2O3 basis, 31-37% CaO basis, powder

Synonym(s):

Calcium borate

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About This Item

Linear Formula:
Ca(BO2)2 · 2H2O
CAS Number:
Molecular Weight:
161.73
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.22

Quality Level

grade

technical

form

powder

composition

B2O3, 39-44%
CaO, 31-37%

SMILES string

[Ca++].[O-]B=O.[O-]B=O

InChI

1S/2BO2.Ca/c2*2-1-3;/q2*-1;+2

InChI key

ILOKQJWLMPPMQU-UHFFFAOYSA-N

Application

  • 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).

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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B S Sayli
Biological trace element research, 81(3), 255-267 (2001-09-29)
As a part of a work to reveal the health effects of boron and its compounds, fertility and infertility states of sibs of probands, contacted and interviewed in the field, and of their spouses were given. The purposes were to
Electrolytic calcium hexaboride for high capacity anode of aqueous primary batteries
Yin H, et al.
Journal of Material Chemistry A, 3(29), 15184-15189 (2015)
D Mao et al.
Solid state nuclear magnetic resonance, 1(4), 227-230 (1992-11-01)
A simple circuit has been designed to generate a bi-symmetric square wave Zeeman modulation for the detection of nuclear quadrupole resonance. The square waveform not only provides an optimum result among bi-symmetric modulation waveforms, but also allows the observation of
Ray L Frost et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 114, 27-32 (2013-06-12)
Meyerhofferite is a calcium hydrated borate mineral with ideal formula: CaB3O3(OH)5·H2O and occurs as white complex acicular to crude crystals with length up to ~4 cm, in fibrous divergent, radiating aggregates or reticulated and is often found in sedimentary or
Calcium metaborate as a cathode additive to improve the high-temperature properties of nickel hydroxide electrodes for nickel-metal hydride batteries.
Li J, et al.
Journal of Power Sources, 263, 110-117 (2014)

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