Sodium tripolyphosphate(STPP),industrial grade,white powder,good water soluble,low impurity content, ... Japan,Korea,Thailand,Singapore,Malaysia,Philippines....etc.Sodium tripolyphosphate industrial grade we are supplying have a character as follow:ItemsSpecificationWhiteness ... LTDAdd: 11,12th Floor,Unit 2, Building 10,District C,Chunhuihuayuan,No. 11,Yunjing Road ,Nanning City,Guangxi province, ...