Hypophosphrous Acid
Grade | BPC-63 | NF-X | 50%-80% |
Identification | Should give characteristic reactions for Hypophosphites | Should give characteristic reactions of hypophosphite | Should give characteristic reactions of hypophosphite |
Description | A Colourless liquid; odour not more than slight; tastes strongly acid | A Colourless liquid; odour not more than slight; tastes strongly acid | A Colourless liquid; odour not more than slight; tastes strongly acid |
Arsenic | Max 6 ppm | Max 1.5 ppm | Max 2 ppm |
Lead | Max. 15 ppm | - | Max. 2 ppm |
Heavy Metals | - | Max. 20 ppm | Max. 10 ppm |
Oxalate | - | No Turbidity | Max. 10 ppm |
Chloride | Should comply with the limit test | - | Max. 250 ppm |
Iron | - | - | Max. 50 ppm |
Sulphate | Should comply with the limit test | - | Max. 0.025 % |
Phosphoric acid & Oxalic acids | Not more than a slight turbidity is produced | - | Max. 0.5 % |
Barium | No Precipitates or Turbidity | No Turbidity | - |
Phosphorous Acid | - | - | Max. 1.5 % |
Calcium | No Precipitates or Turbidity | - | Max. 50 ppm |
Assay | 30.0 to 32.0 % | 30.0 to 32.0 % | 50.0% to 52.0 %- 8.0% to 82.0 % |