 Polyphosphoric acid bụ a vasatail chemical netiti ji dị ka a compound cyclizing gị nụlọnga, acylating gị nụlọnga na dehydrating gị nụlọnga ke organic njikọ, na a ọhụrụ ụdị korota, nke a na-eji dị ka a mkpali na mmanụ ala na ụlọ ọrụ. 