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11618

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

form:
powder

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

Related Categories

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

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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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
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)
Xue Han et al.
Journal of materials science. Materials in medicine, 18(9), 1837-1847 (2007-05-09)
This study investigated the transformation of two sodium calcium borate glasses to hydroxyapatite (HA). The chemical reaction was between either 1CaO . 2Na(2)O . 6B(2)O(3) or 2CaO . 2Na(2)O . 6B(2)O(3) glass and a 0.25 M phosphate (K(2)HPO(4)) solution at
B M Fenton et al.
International journal of cancer, 93(5), 693-698 (2001-07-31)
Clinical trials utilizing strategies to manipulate tumor oxygenation, blood flow and angiogenesis are under way, although limited quantitative information exists regarding basic tumor pathophysiology. The current study utilized murine KHT fibrosarcomas, spontaneous mammary carcinomas and first-generation spontaneous transplants to examine

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