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221732

Sigma-Aldrich

Sodium tetraborate

99%

Sinónimos:

Borax, fused

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About This Item

Fórmula lineal:
Na2B4O7
Número de CAS:
1330-43-4
Peso molecular:
201.22
Número CE:
215-540-4
Número MDL:
MFCD00081185
Código UNSPSC:
12352302
ID de la sustancia en PubChem:
24853258
NACRES:
NA.22
Ensayo:
99%
Formulario:
solid

Agency

suitable for SM 4500 - NH3

Nivel de calidad

200

Ensayo

99%

Formulario

solid

mp

741 °C (lit.)

densidad

2.367 g/mL at 25 °C (lit.)

cadena 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

Clave InChI

UQGFMSUEHSUPRD-UHFFFAOYSA-N

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Aplicación

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.

Información legal

Pictogramas

Health hazardExclamation mark
GHS08,GHS07

Palabra de señalización

Danger

Frases de peligro

H319,H360FD

Clasificaciones de peligro

Eye Irrit. 2 - Repr. 1B

Código de clase de almacenamiento

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

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

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

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Certificados de análisis (COA)

Lot/Batch Number
BCCM5965
BCCK2268
BCCH6343
BCCG2816
BCCD1024

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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
Borax-Mediated Formation of Carbon Aerogels from Glucose
Fellinger T-P, et al.
Advances in Functional Materials, 22(15), 3254-3260 (2012)
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)
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.
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
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