Specification Industrial grade Food grade Appearance White powder White powder Content ( base on nah2po4 ) %9898 P2o5 content %5858 Ph value ( 1% aqueous solution )4.2-4.84.2-4.8 Water insoluble matters %ín0.1ín0.1 Loss on drying %ín2.0ín2.0 Sulfate ( base on so4 ) %--ín0.05 Chloride ( base on cl ) %--ín0.014 Fluoride ( base on f ) %--ín0.005 Heavy metal ( base on pb ) %--ín0.001 Arsenic ( base on as ) %--ín0.0003 25kg woven bag with plastic liner
