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Merck
CN

72070

Sigma-Aldrich

钨酸钠 二水合物

puriss. p.a., ACS reagent, ≥99.0% (AT)

别名:

钨酸 钠盐 二水合物

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About This Item

线性分子式:
Na2WO4 · 2H2O
CAS号:
分子量:
329.85
EC 号:
MDL编号:
UNSPSC代码:
12352300
PubChem化学物质编号:

等级

ACS reagent
puriss. p.a.

方案

≥99.0% (AT)

环保替代产品特性

Catalysis
Learn more about the Principles of Green Chemistry.

杂质

≤0.001% total nitrogen (N)
≤0.05% free alkali (as NaOH)

mp

698 °C (lit.)

痕量阴离子

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg

痕量阳离子

As: ≤1 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤10 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤10 mg/kg
Ni: ≤10 mg/kg
Pb: ≤10 mg/kg
Zn: ≤5 mg/kg

SMILES字符串

O.O.[Na+].[Na+].[O-][W]([O-])(=O)=O

InChI

1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;

InChI key

WPZFLQRLSGVIAA-UHFFFAOYSA-N

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应用

Catalyst for greener oxidation of alcohols and sulfides using hydrogen peroxide. Also catalyzes epoxidations and oxidative cleavage of olefins.

Noyori Oxidation (Sodium Tungstate Dihydrate, Hydrogen Peroxide, Methyltri-n-octylammonium Hydrogen Sulfate, Phosphonic Acid)

其他说明

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Acute Tox. 4 Oral

储存分类代码

13 - Non Combustible Solids

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves

法规信息

新产品

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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访问文档库

Marta Amigó-Correig et al.
PloS one, 7(7), e39087-e39087 (2012-07-18)
This study aims at exploring the effects of sodium tungstate treatment on hypothalamic plasticity, which is known to have an important role in the control of energy metabolism. Adult lean and high-fat diet-induced obese mice were orally treated with sodium
José Angel Martín Rodriguez et al.
Journal of plant physiology, 167(8), 606-613 (2010-01-19)
We examined whether the reduced mycorrhization of abscisic acid (ABA)-deficient tomato mutants correlates with their incapacity in ABA biosynthesis and whether this effect is dependent on ethylene production. The mycorrhization of notabilis and sitiens mutants, which have different ABA deficiencies
Josie E Bamford et al.
Environmental toxicology and chemistry, 30(10), 2312-2318 (2011-08-02)
Due to unknown effects of the potential exposure of the terrestrial environment to tungsten substances, a series of toxicity studies of sodium tungstate (Na(2) WO(4) ) was conducted. The effect on earthworm (Eisenia fetida) survival and reproduction was examined using
Laura Nocito et al.
PloS one, 7(8), e42305-e42305 (2012-08-21)
Oral administration of sodium tungstate has shown hyperglycemia-reducing activity in several animal models of diabetes. We present new insights into the mechanism of action of tungstate. We studied protein expression and phosphorylation in the liver of STZ rats, a type
C J Rodriguez-Hernandez et al.
FEBS letters, 586(3), 270-276 (2012-01-17)
Tungstate counteracts diabetes and obesity in animal models, but its molecular mechanisms remain elusive. Our Saccharomyces cerevisiae-based approach has found that tungstate alleviated the growth defect induced by nutrient stress and enhanced the activation of the GCN pathway. Tungstate relieved

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