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Potassium pyrosulfite [16731-55-8]

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Name Potassium pyrosulfite
Molecular Formula K2S2O5
Molecular Weight 222.31
CAS Registry Number 16731-55-8
EINECS 240-795-3
Density 2.34 g/cm3*
Melting point 190 ºC (decomp)**
* Zachariasen, W. H.; Physical Review 1932, V40, P923-35.
** "International Chemical Safety Cards" data were obtained from the National Institute for Occupational Safety and Health (US)
Safety Data
Hazard Symbols symbol   Xi    Details
Risk Codes R31;R41    Details
Safety Description S26;S39    Details
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