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Chemical compound From Wikipedia, the free encyclopedia
Dithionous acid is a sulfur oxoacid with the chemical formula H2S2O4. It has not been observed experimentally.[2] It is the conjugate base of the dithionite dianion, S2O42-. Dithionite is a well-known reducing agent.
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Names | |||
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IUPAC name
Dithionous acid | |||
Other names
Hydrosulfurous acid; Hyposulfurous acid | |||
Identifiers | |||
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Properties | |||
H2S2O4 | |||
Molar mass | 130.144 g/mol | ||
Acidity (pKa) | 0.35, 2.45 [1] | ||
Conjugate base | Dithionite | ||
Related compounds | |||
Related compounds |
Oxalic acid Sodium dithionite Potassium dithionite | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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