Chemicals and Drugs

Phosphotungstic Acid

Tungsten hydroxide oxide phosphate. A white or slightly yellowish-green, slightly efflorescent crystal or crystalline powder. It is used as a reagent for alkaloids and many other nitrogen bases, for phenols, albumin, peptone, amino acids, uric acid, urea, blood, and carbohydrates. (From Merck Index, 11th ed)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Tungsten hydroxide oxide phosphate. A white or slightly yellowish-green, slightly efflorescent crystal or crystalline powder. It is used as a reagent for alkaloids and many other nitrogen bases, for phenols, albumin, peptone, amino acids, uric acid, urea, blood, and carbohydrates. (From Merck Index, 11th ed)

Chemical Identity

Chemical Information

Molecular Formula
H6O80P2W24
Molecular Weight
5760 g/mol
IUPAC Name
phosphoric acid;(trioxotungsten)
InChIKey
XEFOGGWKYODFIU-UHFFFAOYSA-N
SMILES
OP(=O)(O)O.OP(=O)(O)O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O
MeSH Unique ID
D010772
Source
PubChem CID 71308707

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

1 entry terms
  • Acid, Phosphotungstic

MeSH Record

Aspects Covered

24 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, economics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

History Note

68(64)

MeSH Hierarchy

Tree Numbers

  1. D01w.029w.260.700.675.750w
  2. D01w.695.625.675.750w
  3. D01w.940.700w

AMA Style

References

  1. National Library of Medicine. Phosphotungstic Acid. Medical Subject Headings (MeSH). 2026. Unique ID D010772. http://id.nlm.nih.gov/mesh/2026/D010772
  2. Phosphotungstic Acid. In: Wikipedia. https://en.wikipedia.org/wiki/Phosphotungstic_acid
  3. Phosphotungstic Acid. In: Wikidata. https://www.wikidata.org/wiki/Q2246598
  4. Phosphotungstic Acid. In: PubChem Compound. CID 71308707. https://pubchem.ncbi.nlm.nih.gov/compound/71308707