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Contact Supplier| Characteristic | Unit/Measure | Specifications maintained | Actual result obtained |
| Description | Visual | White crystals | White crystals |
| Identification | Complies | Complies | |
| PH | 5% w/v | 7.8 – 8.9 | 8.16 |
| Loss on drying | - | - | - |
| Assay | % | Minimum 99.0 | 99.3 |
| Phosphorus Pentoxide P 2 O 5 | % | Minimum 50.0 | 52.3 |
| Solubility | Soluble in water | Soluble in water | |
| Clarity of Solution | 5% w/v | Clear and colorless Solutions | Clear and colorless Solutions |
| Sulfate as SO4 | ppm | Under 200 | 40 |
| Iron as Fe | ppm | Under 10 | 3 |
| Chloride as Cl | ppm | Under 200 | 60 |
| Arsenic as As | ppm | Under 2 | nil |
| Fluoride as F | ppm | Under 2 | nil |
| Heavy Metals | ppm | Under 3 | <0.1 |