cking:25kg/bag, or per customer requests.
|
Indicator name
|
Food Grade
|
Industrial grade
|
||
|
Anhydrous
|
Decahydrate
|
Anhydrous
|
Decahydrate
|
|
|
Content (Na4P207) ≥%
|
96.5-100.5
|
-
|
95.5-97.5
|
-
|
|
Content (as Na4P207-10H20)≥%
|
-
|
98.0
|
-
|
98
|
|
Water insoluble ≤%
|
0.20
|
0.20
|
0.15
|
0.10
|
|
PH value (10g/L solution）
|
9.9-10.7
|
|
9.9-10.7
|
|
|
Orthophosphate
|
Pass the test
|
Pass the test
|
||
|
Arsenic (As)≤%
|
0.0003
|
0.0003
|
-
|
-
|
|
Heavy metals (as Pb) ≤%
|
0.001
|
0.001
|
-
|
-
|
|
Lead (Pb)≤%
|
0.0004
|
0.0004
|
-
|
-
|
|
Heating loss %
|
≤0.50
|
38.0-42.0
|
-
|
|