759 results about "Phosphorous acid" patented technology

Phosphorous acid, is the compound described by the formula H₃PO₃. This acid is diprotic (readily ionizes two protons), not triprotic as might be suggested by this formula. Phosphorous acid is an intermediate in the preparation of other phosphorus compounds. Organic derivatives of phosphorous acid, compounds with the formula RPO₃H₂, are called phosphonic acids.