| SPECIFICATION OF PHOSPHORIC ACID TECH. | |||
|---|---|---|---|
| Sr. No. | Test | Unit | Specification |
| 1. | Physical state and appearance | — | Clear colourless transparent liquid |
| 2. | Density at 250 C | g/cc | 1.680-1.700 |
| 3. | Assay | % | 85 min |
| 4. | P2O5 | % | 61 min |
| 5. | Acetic Acid | % | Nil |
| 6. | Iron as Fe | ppm | 5 max |
| 7. | Chloride as Cl | ppm | 10 max |
| 8. | Sulphate as SO4 | ppm | 100 max |
| 9. | Heavy Metals as Pb | ppm | 3 max |
| 10. | Arsenic as As | ppm | 3 max |
| Specification of Phosphoric Acid 40 to 45% | |
|---|---|
| Assay | 40 to 45% |
| Phosphates as P2 O5 | 30 to 32% |
| Sulphate as SO4 | 1 to 2% |
| Sp. Gr. | 1.400 to 1.430 |
| Material Description | Water colourless and odourless fluid |
35 kgs/ 50 kgs HDPE Carboys
CS Rubber lined/ SS 316 Road Tankers
WHY US
Phosphorus-based builders for the detergent industry is a major application for phosphoric acid. Phosphoric acid is used in the production of Alkali Phosphates such as potassium phosphate, and sodium phosphate. Phosphoric acid can also be combined with an ammonia base to produce mono ammonium phosphate, di ammonium phosphate, or ammonium polyphosphate. These compounds are used in fertilizer manufacture and flame proofing.
Many boiler cleaning formulations utilize phosphoric acid to remove carbonate scale, oil or grease. The advantage of phosphoric acid is that the boiler surfaces will develop a light phosphate coating which will resist further oxidation. Phosphoric acid is also less corrosive and volatile than other mineral acids.
Purified Phosphoric acid is used as the phosphorus source in the production of specialty and foliar fertilizers. Because of its higher purity and lack of solids, purified phosphoric acid is used for spray and house plant fertilizers.
Most of the solutions employed in the metal finishing industry for the chemical polishing of aluminum are based on a mixture of phosphoric acid, nitric acid, and sometimes sulfuric acid.
Phosphoric acid is used as a nutrient for bacteria in activated-sludge waste treatment systems.
In the refining of raw sugar, phosphoric acid is reacted with lime to form a calcium phosphate precipitate which aids in the filtration of particulates.
In the metal finishing industry phosphoric acid is utilized to chemically polish, clean and coat a wide range of metals, including aluminum, brass, copper, steel and stainless steel.