Product Description of Phosphoric Acid (CAS#78-42-2)
Phosphoric acid is a multifunctional inorganic chemical compound widely utilized in industrial applications, including the production of flame retardants, plasticizers, extraction agents, and other specialty chemicals.
One of its major applications is in the manufacture of hydrogen peroxide, where it is involved in solvent systems based on hydroanthraquinone derivatives. In the production of trioctyl phosphate (TOP), phosphoric acid helps create a highly effective extraction medium with strong solubility, excellent phase separation performance, and reliable thermal stability.
Due to its unique chemical properties and broad compatibility, phosphoric acid is an important material in chemical processing, solvent extraction, and industrial synthesis applications.
PHOSPHORIC ACID Chemical Propertie
| Melting point | -70°C |
| Boiling point | 215 °C4 mm Hg(lit.) |
| Density | 0.92 g/mL at 20 °C(lit.) |
| Vapor pressure | 2.1 mm Hg ( 20 °C) |
| Refractive index | n20/D 1.444(lit.) |
| Fp | >230 °F |
| Storage temp | Store below +30°C. |
| Solubility | <0.001g/l |
| Form | Liquid |
| Specific Gravity | 0.93 |
| Color | Colourless |
| PH | 7 (H2O, 20℃) |
| Water Solubility | <0.1 g/100 mL at 18 ºC |
| BRN | 1715839 |
| CAS DataBase Reference | 78-42-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Ethylhexanol phosphate (3:1)(78-42-2) |
| EPA Substance Registry System | Tris(2-ethylhexyl) phosphate (78-42-2) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 38 |
| Safety Statements | 23-43-24/25 |
| WGK Germany | 2 |
| RTECS | MP0770000 |
| Autoignition Temperature | 370 °C |
| TSCA | Yes |
| HS Code | 29190090 |
| Hazardous Substances Data | 78-42-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 37000 mg/kg LD50 dermal Rabbit 20000 mg/kg |
Product Application of Phosphoric Acid (CAS#78-42-2)
Phosphoric acid is widely applied in the anthraquinone process for hydrogen peroxide production, where it can be used as an alternative to hydroterpineol. Its application helps improve hydrogen peroxide concentration, enhance product quality, and reduce material consumption during the production process.
In addition, phosphoric acid derivatives can be utilized as low-temperature-resistant plasticizers for PVC materials, helping improve flexibility, durability, and performance under cold conditions.
Due to its excellent chemical properties and functional versatility, phosphoric acid plays an important role in chemical manufacturing, solvent systems, and polymer material modification applications.
