Phosphorous Acid CAS 13598-36-2

Product details

Phosphorous acid is produced in the form of a white volatile powder by the slow combustion of phosphorus. Its salts are called phosphites. It is conveniently prepared by allowing phosphorous trichloride to react with water. In industrial synthesis PCl3 is sprayed into steam at 190oC the heat of reaction is used to distill off the hydrogen chloride and excess water vapour.

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