Item    

Industrial Grade

Food Grade

Appearance:

White powder

White powder

Content (Na3PO4):

≥98%

≥98%

P2O5content:

≥42.4%

≥42.4%

Na2O:

36-40

36-40

PH value(1% aqueous solution):

11.5-12.5

11.5-12.5

Loss on ignition:

≤2.0%

≤2.0%

Sulphate:

≤0.05%

Fluorate:

≤0.005%

Chloride:

≤0.014%

Heavy Metals(based on Pb):

≤0.001%

Arsenic (base on As):

≤0.0003%

Item    

Industrial Grade

Food Grade

Content (Na3PO4.12H2O):

≥98%

≥98%

P2O5content:

≥18.3%

≥18.3%

Sulphate:

≤0.5%

≤0.5%

Chloride:

≤0.3%

≤0.02%

Water insoluble matter:

≤0.1%

≤0.1%

Na2O:

15.5-19

15.5-19

Heavy metal(based on Pb):

≤0.001%

Arsenic(based on As):

≤0.003%