Grades |
BPC |
NF |
Solubility |
1part dissolves in 7 parts water |
1.0 gm dissolves in 6.5 ml water |
Identification |
Should give characteristic reactions for Manganese and Hypophosphite |
Should give characteristic reactions for Manganese and Hypophosphite |
Lead |
Not more than 20 ppm |
Max 20 ppm |
Arsenic |
Not More than 8 ppm |
Complies to Limit Test |
Barium |
No Turbidity |
- |
Phosphite |
No Precipitates produced |
- |
Carbonate |
- |
No Effervescence produced |
Phosphate |
- |
No Precipitation |
Loss on Drying |
- |
Not More than 2% at 105oC for 1 hours |
Calcium |
- |
No Turbidity in 1 min. |
Sulphate |
- |
Max. 0.2 % |
Assay |
Not less than 97.0% |
Not less than 97.0% |