Potassium Hypophosphite
Grades |
BPC |
NF |
Solubility |
1 part dissolves in 1 part water and 7.5 parts of alcohol |
1.0 gm dissolves in 0.6 ml water and 9.0 ml alcohol |
Identification |
Should give characteristic reactions for Potassium and Hypophosphite |
Should give characteristic reactions for Potassium and Hypophosphite |
Description |
White, opaque, granular, crystalline powder very deliquescent in air. Odourless and pungent, salty taste. |
White, opaque, granular, crystalline powder very deliquescent in air. Odourless and pungent, salty taste. |
Alkalinity |
Not more than 1.5 ml of 0.1N HCl is required to neutralize |
Not more than 1.5 ml of 0.1N HCl is required to neutralize |
Heavy Metals |
- |
Max 20 ppm |
Arsenic |
Not More than 4 ppm |
Complies to Limit Test |
Lead |
Not More than 10 ppm |
- |
Phosphite |
No Precipitates produced |
- |
Sodium |
No Precipitates produced |
- |
Phosphate |
No opalescence produced |
No Precipitation within 1 min. |
Loss on Drying |
Not More than 2 % at 105oC |
Not More than 5 % at 105oC for 1 hours |
Calcium |
- |
No Turbidity in 1 min. |
Assay |
98.0 % to 101.0 % |
Not less than 97.0% |