Phosphoric acid

Molecular Formula：H₃PO₄ | Molecular Weight： 97.99 | Synonyms：orthophosphoric acid, Anhydrous phosphoric acid

Thionyl chloride

Molecular Formula：SOCl₂ | Molecular Weight： 118.9704 | Synonyms：Thionylchloridecolorlesspaleyellowliq, thionyl dichloride, Thionylchlorid, sulfoxide chloride

Sulfuryl chloride

Molecular Formula：SCl₂O₂ | Molecular Weight： 134.9698 | Synonyms：sulphuryl dichloride, sulphuryl chloride, Sulfuric oxychloride, sulfuryl dichloride, sulfuric chloride

Phosphorous acid

Molecular Formula：H₃PO₃ | Molecular Weight： 81.9957 | Synonyms：Phosphonic acid, hydrogen phosphonate, phosphorus(+3) trihydride cation trihydroxide, Orthophosphorus, Orthophosphorous acid, Ortho-Phosphorous acid