Skip to Content
Merck
All Photos(3)

Key Documents

223328

Sigma-Aldrich

Tungstic acid

99%

Synonym(s):

dihydroxy(dioxo)tungsten

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
H2WO4
CAS Number:
Molecular Weight:
249.85
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

Assay

99%

form

powder

density

5.5 g/mL at 25 °C (lit.)

SMILES string

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

InChI

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

InChI key

CMPGARWFYBADJI-UHFFFAOYSA-L

Looking for similar products? Visit Product Comparison Guide

General description

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

Application

Starting material for the synthesis of a novel dimeric heteropolyoxopeoxotungstate which has potential in further studies of grafted polyoxoperoxo species on silica.[1]

Packaging

5 g packaged in glass bottles; 100 g, 500 g packaged in poly bottles

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Piquemal, J-Y. et al.
Chemical Communications (Cambridge, England), 473-473 (1997)
G Soman et al.
Biochemistry, 22(21), 4994-5000 (1983-10-11)
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
J Kawada et al.
The Journal of endocrinology, 95(1), 117-124 (1982-10-01)
The role of xanthine oxidase in thyroid function was studied in the rat in vivo by different approaches. Allopurinol, an inhibitor of xanthine oxidase, was administered by mixing it with a powdered diet (16 mg/100 g body wt per day
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
Bromide-assisted oxidation of substituted phenols with hydrogen peroxide to the corresponding p-quinol and p-quinol ethers over WO4(2-)-exchanged layered double hydroxides.
B F Sels et al.
Angewandte Chemie (International ed. in English), 44(2), 310-313 (2004-12-23)

Questions

1–2 of 2 Questions  
  1. Is it possible to have your product white instead of yellow? Thank you tungstic acid H2W04

    1 answer
    1. Unfortunately, a white tungctic acid product is not currently available. The white color is the result of a specific preparation method. Please see the link below to reivew a publication that may be helpful:
      http://www.cjcu.jlu.edu.cn/EN/Y1982/V3/I1/137

      Helpful?

  2. May I know the average particle size?

    1 answer
    1. The average particle size is not determined for this product.

      Helpful?

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service