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221732

Sigma-Aldrich

Sodium tetraborate

99%

Synonyme(s) :

Borax, fused

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About This Item

Formule linéaire :
Na2B4O7
Numéro CAS:
1330-43-4
Poids moléculaire :
201.22
Numéro CE :
215-540-4
Numéro MDL:
MFCD00081185
Code UNSPSC :
12352302
ID de substance PubChem :
24853258
Nomenclature NACRES :
NA.22

Agence

suitable for SM 4500 - NH3

Niveau de qualité

200

Pureté

99%

Forme

solid

Pf

741 °C (lit.)

Densité

2.367 g/mL at 25 °C (lit.)

Chaîne SMILES 

[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

Clé InChI

UQGFMSUEHSUPRD-UHFFFAOYSA-N

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Catégories apparentées

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.

Informations légales

Pictogrammes

Health hazardExclamation mark
GHS08,GHS07

Mention d'avertissement

Danger

Mentions de danger

H319,H360FD

Classification des risques

Eye Irrit. 2 - Repr. 1B

Code de la classe de stockage

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

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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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
Towards greener solvents for the bleach oxidation of alcohols catalysed by stable N-oxy radicals
Janssen MHA, et al.
Green Chemistry, 13(4), 905-912 (2011)
Siyu Liu et al.
ACS nano, 14(11), 15936-15943 (2020-11-13)
Flat, membrane-like materials made of graphene oxide (GO) nanoflakes have extraordinary mechanical properties including high stiffness, high strength, and low weight. However, the forming of complex nonplanar structures from flat GO membranes is difficult because of the intrinsic brittleness of
Caio A C G Brunharo et al.
Journal of agricultural and food chemistry, 67(31), 8431-8440 (2019-05-09)
Glufosinate-resistant Lolium perenne L. spp. multiflorum biotypes from Oregon exhibited resistance levels up to 2.8-fold the field rate. One resistant biotype (MG) had an amino acid substitution in glutamine synthetase 2 (GS2), whereas the other (OR) exhibited the wild-type genotype.
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This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

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