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Potassium Pentathionate Sesquihydrate is potassium salt of Pentathionic acid which is the fungicidal factor of sulfur.. | [Preparation]
Potassium pentathionate is prepared as the sesquihydrate by the reaction of SCl2 with sodium thiosulphate and subsequent metathesis of the sodium pentathionate with potassium acetate, according to the equations
SCl2+2Na2S203•5H20 -> Na2S506 + 2NaCl + 10H2O
Na2S506 + 2CH3COOK -> K2S506 + 2CH3COONa |
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