Five oxidation 2 p also called phosphoric acid anhydride, is white phosphorus, yellow phosphorus or red ... and reagent in chemical industry, this product is widely used in the industryies of medicine,coatingauxiliaries,printing and dyeing ... titanate coupling agent,phosphorus oxychloride,chemical. mainly used in producing high purity phosphoric acid,used as desiccant of gas and liquid ,dehydrant of ...