Description
Phosphoric Acid CAS 7664-38-2 Quick Details
| Chemical Name: | Phosphoric Acid |
| Other Name: | Phosphoricacidsolutions; Phosphoric acid in food |
| CAS: | 7664-38-2 |
| EINECS: | 231-633-2 |
| Type: | Food additives; Feed additives; Pharmaceutical raw materials; Organic raw materials; Inorganic salts; Pharmaceuticals, pesticides, dyes, intermediates of synthetic materials |
| Molecular Formula: | H3O4P |
| Molecular Weight: | 98 |
Phosphoric Acid CAS 7664-38-2 Chemical Properties
| Melting point | ~40 °C(lit.) |
| Boiling point | 158 °C(lit.) |
| density | 1.685 g/mL at 25 °C(lit.) |
| vapor density | 3.4 (vs air) |
| vapor pressure | 2.2 mm Hg ( 20 °C) |
| refractive index | n20/D 1.433 |
| storage temp. | no restrictions. |
| solubility | H2O: soluble |
| pka | 2.1-7.2-12.3(at 25℃) |
| form | Solid or Viscous Liquid |
| color | ≤10(APHA) |
| Specific Gravity | 1.7 |
| Odor | Odorless |
What is Phosphoric Acid?
Ammonium alginate is a natural polysaccharide produced by digestion and extraction of algae. Common alginate products on the market include water-soluble sodium alginate, potassium alginate and other monovalent alkali metal salts of alginic acid and water-insoluble calcium alginate and other divalent metal salts of alginic acid (except magnesium and mercury). ). The above-mentioned common alginates have many manufacturers, complete product specifications and extensive application development. Ammonium alginate is an emerging alginate, and its product properties are also quite different from other well-known alginate products.
Ammonium alginate is widely used as a pharmaceutical excipient in foreign countries, and it has a positive effect on heart and cardiovascular diseases. At present, few enterprises in China produce ammonium alginate, the production technology of ammonium alginate is immature, and the conventional production technology of ammonium alginate will have the disadvantages of incomplete neutralization reaction, long reaction time and uneven final product. Ammonium itself is astringent and cannot be granulated in actual production, which brings great resistance to the subsequent crushing process.
Phosphoric Acid Uses
- Fertilizer industry
Phosphoric acid is an important intermediate product in the production of chemical fertilizers, and is used to produce high-concentration phosphate fertilizers and compound fertilizers. - Electroplating sector
Treat the metal surface to create an insoluble phosphate film on the metal surface area to secure the metal from deterioration. Blended with nitric acid as a chemical gloss to enhance the coating of steel surface areas. - Paint as well as pigment sector
Phosphoric acid is used as a basic material for the production of phosphates. Phosphates are developed as pigments with special functions in the paint pigment industry. It is used as an additive for flame resistant, antirust, anticorrosion, radiation resistance, anti-bacterial, luminescence, and so on, to be included in finishings. - Used as chemical raw material
Raw materials for various phosphates and phosphate esters used in the production of soaps, detergents, insecticides, phosphorus-containing flame retardants and water treatment agents.
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