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Key Documents

221732

Sigma-Aldrich

Sodium tetraborate

99%

Synonym(s):

Borax, fused

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About This Item

Linear Formula:
Na2B4O7
CAS Number:
Molecular Weight:
201.22
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.22

Agency

suitable for SM 4500 - NH3

Quality Level

Assay

99%

form

solid

mp

741 °C (lit.)

density

2.367 g/mL at 25 °C (lit.)

SMILES string

[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2

InChI

1S/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1

InChI key

UQGFMSUEHSUPRD-UHFFFAOYSA-N

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Application

Sodium tetraborate (Na2B4O7) can be used as a co-catalyst for the oxidation of alcohols to corresponding carbonyl compounds in greener non-chlorinated solvents in the presence of TEMPO/NaOCl. It is also used as a structure-directing agent as well as a catalyst in the preparation of carbon aerogels using glucose as the carbon precursor.

Legal Information

Pictograms

Health hazardExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Repr. 1B

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Borax-Mediated Formation of Carbon Aerogels from Glucose
Fellinger T-P, et al.
Advances in Functional Materials, 22(15), 3254-3260 (2012)
Zichen Zhao et al.
Foods (Basel, Switzerland), 10(7) (2021-08-08)
UV-B illumination facilitates aggregation of alpha-lactalbumin (α-LA) by intramolecular disulfide bond cleavage followed by intermolecular thiol-disulfide exchange reactions. However, long term exposure to UV-B illumination may induce undesired oxidative modifications of amino acid residues in the protein. The purpose of
Jamshed Iqbal et al.
Journal of chromatography. A, 1218(29), 4764-4771 (2011-06-15)
A simple, efficient, and highly sensitive in-line CE method was developed for the characterization and for inhibition studies of the nucleoside-metabolizing enzymes purine nucleoside phosphorylase (PNP) and adenosine deaminase (ADA) present in membrane preparations of human 1539 melanoma cells. After
Ruina Li et al.
Journal of hazardous materials, 248-249, 268-275 (2013-02-07)
Rapid analysis of trace amount of aromatic amines in environmental samples and daily necessities has attracted considerable attentions because some of them are strongly toxic and carcinogenic. In this study, fast and efficient electrophoretic separation and sensitive determination of 5
Tingyao Zhou et al.
Nanoscale, 4(17), 5312-5315 (2012-07-28)
A facile approach was developed to prepare positively charged and red-emitting lysozyme-stabilized Ag nanoclusters (Lys-AgNCs) using NaBH₄ as a reducing agent at room temperature. The Lys-AgNCs can be applied in the highly selective detection of Hg²⁺.

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