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tungstic acid

chemical compound
Class type of: chemical compound Q416538

Facts

7 properties
Instance of
type of chemical entity
Subclass of
chemical compound
Canonical SMILES
O[W](=O)(=O)O
Chemical formula
H₂O₄W
Has part(s)
hydrogen, tungsten, oxygen
Mass
+249.946
Safety classification and labelling
NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response
🏷️ Also known as
en H2WO4 en tungstic acid en [WO2(OH)2] en tungstic(VI) acid en dihydrogen wolframate cs kyselina wolframová cs H2WO4 de Wolframsäure de H2WO4 es Acido wolframico es Ácido wolfrámico fa تنگستیک اسید fi volframihappo fr acide tungstique hi टंग्स्टिक अम्ल id dihidrogen wolframat id asam tungstat id asam wolframat id H2WO4 id [WO2(OH)2]
🔖 Identifiers · 31
Library of Congress authority ID
sh85138629
GND ID
4599472-9
OpenAlex ID
C2779446143
Image (Wikimedia Commons)
Tungstic acid.jpg ↗
BNCF Thesaurus ID
13471
CAS Registry Number
7783-03-1
ChEBI ID
36272
ChemSpider ID
1120
DSSTOX compound identifier
DTXCID001324203
DSSTox substance ID
DTXSID80894161
EC number
231-975-2
ECHA Substance Infocard ID
100.029.068
Show all 31 identifiers +19
Elhuyar ZTH ID
031875
Freebase ID
/m/072t2b
Gmelin number
82224
Human Metabolome Database ID
HMDB0259326
InChI
InChI=1S/2H2O.2O.W/h2*1H2;;;/q;;;;+2/p-2
InChIKey
CMPGARWFYBADJI-UHFFFAOYSA-L
Interlingual Index ID
i116451
Microsoft Academic ID (discontinued)
2779446143, 2910335796
National Library of Israel J9U ID
987007556046405171
Probes And Drugs ID
PD162531
PubChem CID
1152
RTECS number
YO7840000
Römpp online ID
RD-23-01044
SureChEMBL ID
20982
UNII
J4D6K0RX2G
UniChem compound ID
1101526
WordNet 3.1 Synset ID
15106603-n
Yale LUX ID
concept/d71944c2-b07d-469e-8b48-1f19fcfdc5fe
ZVG number
122698

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🔗 Connections
Has part(s) 3
hydrogen, oxygen, tungsten
Subclass of 1
chemical compound
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Summary

tungstic acid is a type of chemical entity[1]. It is a type of chemical compound[2].

Key Facts

  • Canonical SMILES: OW(=O)OW(=O)O">[3]
  • Chemical formula: H₂O₄W[4]
  • Has part(s): hydrogen[5], tungsten[6], oxygen[7]
  • Mass: 249.946 dalton[8]
  • Safety classification and labelling: NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response[9]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . PubChem. Retrieved . wikidata.org.
  2. [4] ↑ . PubChem. Retrieved . wikidata.org.
  3. [2] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . PubChem. Retrieved . wikidata.org.
  8. [9] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). tungstic acid. Retrieved October 30, 2026, from https://4ort.xyz/entity/tungstic-acid
MLA “tungstic acid.” 4ort.xyz Knowledge Graph, 4ort.xyz, 30 Oct. 2026, https://4ort.xyz/entity/tungstic-acid.
BibTeX @misc{4ortxyz_tungstic-acid_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{tungstic acid}}, year = {2026}, url = {https://4ort.xyz/entity/tungstic-acid}, note = {Accessed: 2026-10-30}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): tungstic acid — https://4ort.xyz/entity/tungstic-acid (retrieved 2026-10-30)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 23w ago · Twofivesixbot bot · 2026-05-25 view diff on Wikidata ↗
    Instance of → —
    Subclass of → chemical compound
    Safety classification and labelling → NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response
    Subclass of → —
    + 5 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|1 */ National Library of Israel J9U ID: 987007556046405171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.