PCl3 reacts rapidly and exothermically with water to form phosphorous acid, H3PO3 and HCl: PCl3 + 3 H2O → H3PO3 + 3 HCl Phosphorus trichloride has a lone pair, and therefore can act as a Lewis base. For example with the Lewis acids BBr3 it forms a 1:1 adduct, Br3B−−+PCl3.
May 19th, 2015
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