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95420

Sigma-Aldrich

Tungstic acid

≥98.0% (calcined substance, T), powder

Sinônimo(s):

Tungstic(VI) acid

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About This Item

Fórmula linear:
H2WO4
Número CAS:
7783-03-1
Peso molecular:
249.85
Número CE:
231-975-2
Número MDL:
MFCD00011336
Código UNSPSC:
12352300
ID de substância PubChem:
57653679
NACRES:
NA.23

Ensaio

≥98.0% (calcined substance, T)

forma

powder

Impurezas

≤0.2% insoluble matter in NaOH

perda

≤9.0% loss on ignition

densidade

5.5 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

O[W](O)(=O)=O

InChI

1S/2H2O.2O.W/h2*1H2;;;/q;;;;+2/p-2

chave InChI

CMPGARWFYBADJI-UHFFFAOYSA-L

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Descrição geral

Tungstic acid may be prepared by either digesting tungstate of lime or by treating tungsten with hydrochloric acid. 1

Pictogramas

Exclamation mark
GHS07

Palavra indicadora

Warning

Frases de perigo

H315,H319,H335

Declarações de precaução

P302 + P352 - P305 + P351 + P338

Classificações de perigo

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

Certificados de análise (COA)

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Sigma-Aldrich

72069

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Tungsten(VI) oxide nanopowder, <100 nm particle size (TEM)

Sigma-Aldrich

550086

Tungsten(VI) oxide

P T Bilous et al.
Journal of bacteriology, 162(3), 1151-1155 (1985-06-01)
Escherichia coli grew anaerobically on a minimal medium with glycerol as the carbon and energy source and dimethyl sulfoxide (DMSO) as the terminal electron acceptor. DMSO reductase activity, measured with an artificial electron donor (reduced benzyl viologen), was preferentially associated
Chao-yang Tu et al.
Guang pu xue yu guang pu fen xi = Guang pu, 25(6), 804-807 (2005-10-06)
Cr3+:Al2(WO4)3 Crystal was grown from the Na2WO4 solvent system by using the TSSG method. The absorption spectrum shows that there are two strong absorption wideband peaks and one we ak absorption peak belonging to Cr3+ ion in the crystal. The
R R Bridges et al.
Journal of analytical toxicology, 8(6), 263-268 (1984-11-01)
Common techniques for analyzing ethchlorvynol (Placidyl) by colorimetry and gas liquid chromatography are evaluated. Matrix effects are thoroughly examined to determine their contribution to the validity of results.
Renagul Abdurahman et al.
Analytica chimica acta, 658(1), 63-67 (2010-01-20)
In this study, a sensitive optical waveguide (OWG) sensor for the detection and identification of volatile organic compounds (VOCs) was reported. The sensing membrane is constructed by immobilization of peroxopolytungsten acid (PTA) thin film over a single-mode potassium ion (K(+))
Xiankun Lin et al.
Langmuir : the ACS journal of surfaces and colloids, 25(11), 6081-6087 (2009-03-12)
Hexagonally mesostructured polyoxometalate-based hybrid was prepared by a mild-solution method through the self-assembly of an amphiphilic poly(ethylene oxide) octadecyldimethylammonium (C18NEO12) and a polyanionic silicotungstic acid (HSiW). The composition of the hybrid was characterized through 1H NMR, infrared spectroscopy, mass spectroscopy
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