producted by the most famous manufacture of south west of china . the most effective manufactures of phosphor industry in china .Iterms Standards Result COLOUR 20 10 PHOSPHORICACID% 85 85.29 CHLORIDE%: 0.0005 0.0001 SULPHATE(SO4)%: 0.003 0.0012 HEAVYMETAL(ASPb)%: 0.0005 0.0002 FLUORDIE(ASF)%: 0.001 0.0004 OXIDABLEMATTER(ASH3PO3) 0.012 0.0034 ARSENIC% 0.00005 0.00003we supply phosphoric acid (food grade) to you , andour best services will be with you all the time