Specification Industrial grade food grade Appearance white powder white powder Content ( base on na3po4 ) %9898 P2o5 content %42.442.4 Alkalinity ( base on na2o ) 36-4036-40 Phosphoric anhydride ( base on p2o5 ) %39.539.5 Ph value ( 1% water solution ) 11.5-12.511.5-12.5 Loss on ignition %ín2.02.0 Sulfate ( base on so4 ) %--ín0.05 Fluoride ( base on f ) %--ín0.005 Chloride ( base on cl ) %--ín0.014 Heavy metal ( base on pb ) %--ín0.001 Arsenic ( base on as ) %--ín0.0003 25kg woven bag with plastic liner.
