Phosphoric Acid is a colorless, odorless phosphorus-containing inorganic acid. It has a role as a solvent, a human metabolite, an algal metabolite and a fertilizer. It is miscible with water, ethanol and mixture of ether: alcohol (3:1).
| H3PO4 | 85.0 % |
| P2O5 | 61.6 % |
| Specific Gravity at 25°C | 1.685 g/mL |
| Color | < 10.0 (APHA) |
| Arsenic (As) | < 0.8 (mg/Kg) |
| Fluoride (F) | 10.0 (mg/Kg) |
| Iron (Fe) | 20 (mg/Kg) |
| Heavy Metal (as Pub) | < 10(mg/Kg) |
| Lead (Pub) | < 0.4 (mg/Kg) |
| Cadmium (Cd) | 0.0 (mg/Kg) |
| Nickel (Ni) | < 0.2 (mg/Kg) |
| Chromium (Cr) | < 0.6 (mg/Kg) |
| Mercury (Hg) | < 0.05 (mg/Kg) |
| Copper (Cu) | < 0.1 (mg/Kg) |
| Phosphorus (P) | 26.9 % |
| Sulphates ( SO4) | 383 (mg/Kg) |
| Chloride (Cal) | < 20.0 (mg/Kg) |
| Volatile acids (as Acetic acid) | < 10 (mg/Kg) |
| Nitrates | < 5 (mg/Kg) |
| Visual Appearance | Clear, colorless liquid without visible particles. |
· Food-grade phosphoric acid is used to acidify foods and beverages such as jams, providing a tangy or sour taste.
· Soft drinks containing phosphoric acid, which would include Coca-Cola, are sometimes called phosphate sodas or phosphates.
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