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Phosphorous acid

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Phosphorous acid

Molecular formula: H3O3P CAS# 13598-36-2
Categories: Inorganic acids
Names
English:
Dihydroxyphosphine oxide
Orthophosphorous acid
Phosphonic acid(CAS) [Wiki]
Phosphorous acid
PubChem 107909
Trihydroxyphosphine
dihydroxy(oxo)phosphanium(IUPAC)
Русский:
Фосфористая кислота [Wiki]
фосфоновая кислота
German:
Phosphonsäure [Wiki]
Phosphor(III)-Säure
Phosphorige Säure (veraltet)
French:
Acide phosphoreux(IUPAC) [Wiki]
phosphite d'hydrogène(IUPAC)
Italiano:
Acido fosforoso [Wiki]
acido triossofosforico (III)(IUPAC)
fosfito di idrogeno
日本語:
亜リン酸 [Wiki]
中文:
亞磷酸 [Wiki]
Português:
phosphorous acid(IUPAC)
Ácido fosforoso [Wiki]
Ácido fosfônico

Variants of the formula:

H2(PHO3)
HO_(A-15)P<_(A115)HO>`|O|\H
HO/P`|O|<|H>\OH
(HO)2HP=O
H|P`/O/<_(A75,w+)OH>_(A15)OH
HO/$dashes(-)P<_(A75,w+)OH>_(A15)OH
H3PO3
P(OH)3
H2PHO3
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Phosphorous acid is involved

  • PI3 + 3H2O -> H3PO3 + 3HI
  • 3CH3CH2OH + PBr3 -> 3CH3CH2Br + H3PO3
  • Ca(PH2O2)2 + 2H2O + 4AgNO3 -> 4Ag"|v" + 2H2(PHO3) + Ca(NO3)2 + 2HNO3
  • GeO2 + H3PO2 -> GeO + H3PO3
  • GeI4 + H2O + H3PO2 -> GeI2 + H3PO3 + 2HI