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Merck

95420

Sigma-Aldrich

钨酸

≥98.0% (calcined substance, T), powder

别名:

Tungstic(VI) acid

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About This Item

线性分子式:
H2WO4
CAS号:
分子量:
249.85
EC號碼:
MDL號碼:
分類程式碼代碼:
12352300
PubChem物質ID:
NACRES:
NA.23

品質等級

化驗

≥98.0% (calcined substance, T)

形狀

powder

雜質

≤0.2% insoluble matter in NaOH

損耗

≤9.0% loss on ignition

密度

5.5 g/mL at 25 °C (lit.)

SMILES 字串

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

InChI

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

InChI 密鑰

CMPGARWFYBADJI-UHFFFAOYSA-L

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一般說明

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

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

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

標靶器官

Respiratory system

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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分析证书(COA)

Lot/Batch Number

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J W White et al.
Journal - Association of Official Analytical Chemists, 72(6), 907-911 (1989-11-01)
Using the difference in stable carbon isotope ratio between a honey and its protein fraction permits objective evaluation of possible adulteration of honey with small amounts (7-20%) as well as larger amounts of corn or cane sugar. The present uncertainty
L V Del Priore et al.
Biochimica et biophysica acta, 845(1), 81-85 (1985-04-22)
Anionic activation of rod outer segment phosphodiesterase by vanadate, molybdate and tungstate is demonstrated. Comparisons are made to adenylate cyclase, which is known to be activated by vanadate and molybdate but not by tungstate. In view of the differences in
S T LaBrie et al.
Molecular & general genetics : MGG, 233(1-2), 169-176 (1992-05-01)
The characterization of mutants that are resistant to the herbicide chlorate has greatly increased our understanding of the structure and function of the genes required for the assimilation of nitrate. Hundreds of chlorate-resistant mutants have been identified in plants, and
G Soman et al.
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The differential effects of the oxyanions of the early transition metals ions V(V), W(VI), and Mo(VI) on the catalytic activity and coenzyme binding of rabbit skeletal muscle phosphorylase are studied. The oligoanions of V(V), W(VI), and Mo(VI) are potent inhibitors
[Experimental study on etiological mechanism of convulsion--special reference to convulsions and epileptiform activity waves associated with physical maturity].
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