| Customization: | Available |
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| CAS No.: | 7664-38-2 |
| Formula: | H3po4 |
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Phosphoric acid (orthophosphoric acid, monophosphoric acid or phosphoric(V) acid) is a colorless, odorless phosphorus-containing solid, and inorganic compound with the chemical formula H3PO4. It is commonly encountered as an 85% aqueous solution, which is a colourless, odourless, and non-volatile syrupy liquid. It is a major industrial chemical, being a component of many fertilizers.
Food-grade phosphoric acid (additive E338) is used to acidify foods and beverages such as various colas and jams, providing a tangy or sour taste. The phosphoric acid also serves as a preservative. Soft drinks containing phosphoric acid, which would include Coca-Cola, are sometimes called phosphate sodas or phosphates. Phosphoric acid in soft drinks has the potential to cause dental erosion. Phosphoric acid also has the potential to contribute to the formation of kidney stones, especially in those who have had kidney stones previously.
| Purity | 85% | 81% | 75% |
| Chlorides | <0.0005% | 5 ppm max | <0.0005% |
| Sulphates | <0.0005% | 80 ppm max | <0.003% |
| Heavy Metales | <0.001% | 10 ppm max | <0.0005% |
| Arsenic | <0.0001% | 1 ppm max | <0.00005% |
| Fluoride | <0.001% | 1.0ppm max | <0.001 |
| Colour | <20 | ||
| Reductive Matter | <0.012% |
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A concentrated solution of phosphoric acid is irritating to the skin and eyes and can corrode the skin to cause inflammation. Phosphoric acid vapor can cause nasal mucosa atrophy, can cause systemic poisoning. The maximum allowable concentration of phosphoric acid in air is 1 mg/ma. If not, the skin contact with phosphoric acid, should immediately rinse with plenty of water, and wipe red mercury solution or gentian violet solution, poisoning phenomenon should be sent to the hospital immediately. It is not allowed to be stored and mixed with alkaline, toxic and corrosive substances.
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