Tungstic acid

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Description

Yellow powder. Tungstic acid is used as a Mordant for dyeing textiles. It is also used as a Colorant in plastics.

Synonyms and Related Terms

wolframic acid; orthotungstic acid

Chemical structure

Tungstic acid.jpg


Risks

  • Toxic by ingestion and inhalation.
  • Fisher Scientific: MSDS

Physical and Chemical Properties

Soluble in hydrofluoric acid and alkalis. Insoluble in water.

Composition H2WO4
CAS 7783-03-1
Density 5.5 g/ml
Molecular Weight mol. wt. = 249.88

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 694
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 9948
  • Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985

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