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  7. Sodium tetraborate, anhydrous, Puratronic™, 99.998% (metals basis)

Sodium tetraborate, anhydrous, Puratronic™, 99.998% (metals basis)

Product Code. 11387037
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Product Code. 11387037 Supplier Thermo Scientific Alfa Aesar Supplier No. 010875.14
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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 White
Physical Form Powder
Quantity 25 g
Linear Formula Na2B4O7
Merck Index 14,8590
Solubility Information Soluble in water and glycerol. Slightly soluble in ethanol. Insoluble in acids.
Formula Weight 201.22
Percent Purity 99.998%
Grade Puratronic
Odor Odorless
Refractive Index 1.501
Sensitivity Hygroscopic
Density 2.367 g/mL
Assay (metals basis)
Chemical Name or Material Sodium tetraborate, Anhydrous
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Sicherheit und Handhabung

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Signalwort
  • Danger
 Gefahrenkategorie
  • Reproductive toxicity Category 1B
 Gefahrenhinweis
  • H360FD-May damage fertility. May damage the unborn child.
 Sicherheitshinweis
  • P201-Obtain special instructions before use.
  • P280-Wear protective gloves/protective clothing/eye protection/face protection.
  • P308+P313-IF exposed or concerned: Get medical advice/attention.
Sicherheitsdatenblatt (SDS)

RUO – Research Use Only

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