It is widely used in pharmaceutical , perfumery , leather and chemical industry ; as compound cyclizing agent in organic synthesis , acidifier and dehydrant ; as substitute of ortho - phosphoric acid 多聚磷酸广泛用于药香料皮革化工等行业,在有机合成中用作化合物环化剂酸化剂和脱水剂,另外还可作为正磷酸的代用品等。