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Tungstic acid

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Tungstic acid

Molecular formula: H2O4W CAS# 7783-03-1
Categories: Inorganic acids
Names
English:
Dihydrogen wolframate
Dihydrogentetraoxotungstate(2-)
EINECS:231-975-2
Tungstate(WO42-), dihydrogen, (T-4)- (9CI)
Tungstate(WO42-), hydrogen (1:2), (T-4)-
Tungsten acid (H2WO4)
Tungsten hydroxide oxide(W(OH)2O2)
Tungstic acid [Wiki]
Tungstic acid (H2WO4) (8CI)
Tungstic(VI) acid
Tunstic acid
dihydrogen tungstate (H2WO4)
dihydroxy(dioxo)tungsten(IUPAC)
dihydroxy-dioxotungsten
Русский:
Вольфрамовая кислота [Wiki]
моногидрат триоксида вольфрама
ортовольфрамовая кислота
German:
Dihydroxy(dioxo)wolfram(IUPAC)
Scheelsäure
Wolfram(VI)-oxid-Monohydrat
Wolframsäure [Wiki]
Español:
Ácido ortowolfrámico
Ácido wolfrámico [Wiki]
French:
Dihydroxy(dioxo)tungstène(IUPAC)
日本語:
オルトタングステン酸
タングステン酸 [Wiki]
Português:
Ácido ortotúngstico
Ácido túngstico [Wiki]
ácido volfrâmico
中文:
一水合氧化钨
正钨酸
钨酸 [Wiki]

Variants of the formula:

H2WO4
HO-W<`||O><||O>-OH
HO/W<_qq4O><_pp4O>/OH
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Tungstic acid is involved

  • H2WO4 "180^oC"--> WO3 + H2O
  • H2SO4 + {M}2WO4 -> H2WO4 + {M}2SO4 , where M = K Na Li Rb
  • H2CO3 + Na2WO4 -> H2WO4 + Na2CO3
  • CaWO4 + 2HCl -> H2WO4 + CaCl2
  • CaWO4 + 2HNO3 -> H2WO4 + Ca(NO3)2