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Physical & Chemical properties

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Potassium sulfite (K2SO3, Molecular weight 158.26), CAS 10117 -38 -1 is a colourless hexagonal crystalline solid.

No melting temperature was found between 20 °C and 590 °C. The melting point of the test substance, Potassium sulfite, is greater than 590°C.

The relative density of potassium sulfite at 20°C is 2.353.

The water solublity of potassium sulfite is 1060 g/L at 25°C.