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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:
13701-64-9
Molecular Weight:
161.73
EC Number:
237-224-5
MDL number:
MFCD00049397
UNSPSC Code:
12352302
PubChem Substance ID:
329749500
NACRES:
NA.22
form:
powder

Quality Level

100

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
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Precautionary Statements

P261 - P305 + P351 + P338

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

JAN Code

11618-1KG-R:
11618-6X1KG-R:
11618-BULK-R:
11618-25KG-R:
11618-VAR-R:

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Certificates of Analysis (COA)

Lot/Batch Number
STBK5748
STBK3103
STBJ8595
STBJ6731
STBJ2693

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Undoped and calcium doped borate glass system for thermoluminescent dosimeter.
Rojas SS, et al.
Journal of Non-Crystalline Solids, 352(32-35), 3608-3612 (2006)
D Mao et al.
Solid state nuclear magnetic resonance, 1(5), 255-260 (1992-12-01)
The quadrupole coupling constant (Qcc) and asymmetry parameter (eta) of 11B in crystalline CaO.B2O3 have been measured employing three different NQR and NMR methods: (1) 11B and 10B NQR; (2) 11B NQR and NMR; and (3) the 11B Zeeman NQR
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
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
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
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