1 | Appearance | A clear, colourless, syrupy liquid, corrosive | A clear, colourless, syrupy liquid, corrosive. |
2 | Solubility | Passes | Miscible with water and with ethanol (96%) |
3 | Relative density, 20°C | 1.7 | About 1.7 |
4 | Identification A | Complies | The solution is strongly acidic. |
5 | Identification B (By Chemical test) | Complies | Give reaction of Phosphates |
6 | Appearance of Solution | Passes | Solution S is clear and colourless. |
7 | Substance precipitated by ammonia(NH4) | Passes | Passes test |
8 | Hypophosphorus acid and phosphorous acid | Passes | Passes test |
9 | Chloride (Cl) | NMT 50ppm | 50ppm max |
10 | Sulphate (SO4) | NMT 100ppm | 100ppm max |
11 | Arsenic (As) | NMT 2ppm | 2ppm max |
12 | Iron (Fe) | NMT 50ppm | 50ppm max |
13 | Heavy metals | NMT 10ppm | 10ppm max |
14 | Assay | 86.58% w/w | 84.0% - 90.0% m/m |