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  7. Sodium tetraborate, anhydrous, 99.5% (metals basis)

Sodium tetraborate, anhydrous, 99.5% (metals basis)

Catalog No. AA12305A1
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Catalog No. AA12305A1 Supplier Thermo Scientific Chemicals Supplier No. 012305A1
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Description

CAS: 1330-43-4 | B4Na2O7 | 201.21 g/mol

Sodium tetraborate is used as a co-catalyst for (2,2,6,6-tetramethylpiperidin-1-yl)oxyl and sodium hypochlorite oxidation of alcohols in greener and non-chlorinated solvents. It acts as a reagent for the decomposition of oxides and silicates by fusion. It is used to prepare buffers, which is used in gel electrophoresis of DNA. It acts as a source of borate, micronutrient fertilizer, preservative in taxidermy, additive in ceramic slips and glazes. It is also used as a precursor for sodium perborate monohydrate and boric acid. It finds application as fluoride detoxification, neutron absorber in nuclear reactors and to make indelible ink for dip pens.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 1330-43-4
Molecular Formula B4Na2O7
Molecular Weight (g/mol) 201.21
MDL Number MFCD00081185
InChI Key NXSVMNYRVBQCMO-UHFFFAOYSA-N
Synonym Borax, anhydrous, Sodium borate (tetra)
IUPAC Name disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(ylium)-1,5-diuide-1,5-bis(olate)
SMILES [Na+].[Na+].[O-][B-]12O[B+]O[B-]([O-])(O[B+]O1)O2

Specifications

Boiling Point 1575°C (decomposition)
Melting Point 741°C
Color Green
Physical Form Granules
Quantity 1 kg
Assay Percent Range 99.5% (metals basis)
Solubility Information Slowly soluble in waterSoluble in water and glycerol. Slightly soluble in ethanol. Insoluble in acids.
Formula Weight 201.22
Odor Odorless
Refractive Index 1.501
Sensitivity Hygroscopic
Appearance White powder
Vapor Pressure 0 hPa
Density 2.367
Chemical Name or Material Sodium tetraborate, anhydrous
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Safety and Handling

Hazard Category H319-H360FD
Precautionary Statement P201-P202-P264b-P280i-P281-P305+P351+P338-P308+P313-P501c
EINECSNumber 215-540-4
RTECSNumber ED4588000
TSCA Yes
Recommended Storage Ambient temperatures
SDS

RUO – Research Use Only

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