... 1Molecular Formula: C7H11O9P Molecular weight: 270.13Structural Formula:Properties:PBTCA has low content of phosphoric, has structural features of ... , it is used as chelating agent and metal detergent.PBTCA is usually used together with zinc salt, copolymer, organophosphine ... eye and skin, once contacted, flush with water.Synonyms:PBTCA;PBTC;PHOSPHONOBUTANE TRICARBOXYLIC ACID;2-Phosphonobutane -1,2,4- ...