Grundinformationen
- Standard-SMILES
[O]=[W](=[O])([OH])[OH]- InChIKey
CMPGARWFYBADJI-UHFFFAOYSA-L- Summenformel
- W-H2-O4
- Durchschnittliche Molmasse
- 249,85 g/mol
Überblick
Tungstic acid is a tungsten coordination entity. It is a conjugate acid of a hydrogentungstate.
Namen und Bezeichner
- Bevorzugter Name
- Tungstic acid
- IUPAC
- dihydroxy(dioxo)tungsten
- Lokaler Name
- Dihydrogenwolframat
- Englischer Name
- Tungstic acid
- Summenformel
- HO4W-
- Molmasse
- 248.84
Namen und Synonyme
Tungstic acidTungstic(VI) acidJ4D6K0RX2GCHEBI:36272tungsten acidRefChem:192539DTXCID0071964231-975-2DTXSID50149473Kyselina wolframova7783-03-1dihydroxy(dioxo)tungsten
Weitere Namen anzeigen
O2W(OH)2ungsticaciTunstic acidWolframic acidTungsticAcidGrTungstic acid 99%Orthotungstic acidTUNGSTIC ACID 99+%
Dihydrogen wolframateTungstic acid (H2WO4)Tungstic acid, 99%Tungstate (WO42-), dihydrogen, (T-4)-Tungsten hydroxide oxideUNII-J4D6K0RX2GEINECS 231-975-2Tungstate (WO42-), hydrogen (1:2), (T-4)-
Datenbank-Bezeichner
- CAS
7783-03-1- PubChem CID
- 1152
- ChEBI
CHEBI:36272- UNII
- J4D6K0RX2G
- EC Number
- 231-975-2
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 74,6 Ų
- H-Brücken-Donoren
- 2
- H-Brücken-Akzeptoren
- 4
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 5
- Formalladung
- 0
- Komplexität
- 81,3
Experimentelle und physikochemische Eigenschaften
Chemical ClassesMetals -> Metals, Inorganic Compounds
Density5.5 @25 °C
Physikochemische Eigenschaften
- Schmelzpunkt
- 100 °C · 100°C (dec.)
- Siedepunkt
- 1473 °C · 1473°C
- Dichte
- 5.5 g/mL · 5.5 g/mL at 25 °C (lit.)
- Brechungsindex
- 2.24 · 2.24
- Flammpunkt
- 1473 °C · 1473°C
- storage temp.
- Sealed in dry,Room Temperature
- Löslichkeit
- 2 O, · insoluble in H2O, acid solutions; soluble in alkaline solutions
- Aggregatzustand
- powder
- Farbe
- Yellow to yellow-greenish
- Wichte
- 5.5 · 5.5
- Wasserlöslichkeit
- insoluble
- Merck
- 14 · 14,9818
- Stabilität
- Stable. Incompatible with strong oxidizing agents.
- InChI
- 1S/2H2O.2O.W/h2*1H2;;;/q;;;;+2/p-2
- InChIKey
- CMPGARWFYBADJI-UHFFFAOYSA-L
- SMILES
- O[W](O)(=O)=O
- CAS Datenbank
- 7783 · 7783-03-1(CAS DataBase Reference)
- NIST chemische Informationen
- Tungstic acid(7783-03-1)
- EPA chemische Informationen
- Tungstate (WO42-), dihydrogen, (T-4)- (7783-03-1)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 96.6% (169 of 175) of all reports.
Not Classified
Aggregated GHS information provided per 175 reports by companies from 5 notifications to the ECHA C&L Inventory.
Gefahrenhinweise
Regulatory Information
Chemical: Tungstate (WO42-), dihydrogen, (T-4)-
Status: Active Update: 12-04-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/11633
Tungstic acid: Does not have an individual approval but may be used under an appropriate group standard
Hazards SummaryA mild eye irritant; [RTECS] May cause eye injury; Harmful by ingestion, inhalation, and skin absorption; [MP Biomedicals MSDS] See Tungsten.
Hazard Classes and CategoriesNot Classified
Sicherheit und Schutzausrüstung
Threshold Limit Values (TLV)3.0 [mg/m3], as W, respirable particulate matter
Protective Action Criteria (PAC)
14 [mg/m3]
150 [mg/m3]
900 [mg/m3]
Sicherheitsdaten
- wgk
- 3
- tsca
- TSCA listed
- hs_code
- 28259011
- RTECS-Nr.
- YO7840000
- risk_code
- 36/37/38
- safety_code
- 24/25
- Speicherklasse
- 13 - Non Combustible Solids
- Hazard Classifications
- Eye Irrit. 2Skin Irrit. 2STOT SE 3
Chemie und Industrie
Verwendung und Herstellung
General Manufacturing InformationTungstate (WO42-), hydrogen (1:2), (T-4)-: ACTIVE
Anwendungen
VerwendenTungstic Acid is used as a starting material in the synthesis of polynanocomposite material and polycrystalline ceramics.
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