PHOSPHORIC ACID CAS#78-42-2
Versatile Industrial Applications: Widely used as a flame retardant, plasticizer, and extraction agent, supporting diverse chemical manufacturing processes.
Essential Role in Hydrogen Peroxide Production: Plays a critical role in the production of hydrogen peroxide, ensuring efficient and stable processing performance.
Excellent Solvent Performance: When used in the production of trioctyl phosphate (TOP), it enables high solubility of hydroanthraquinone derivatives, improving reaction efficiency.
Favorable Safety & Separation Properties: Provides a high boiling point, high flash point, and a high hydrogen peroxide distribution coefficient between water and solvent, contributing to enhanced safety and extraction efficiency.
Product Description of Phosphoric Acid (CAS#78-42-2)
Phosphoric acid is extensively utilized in the chemical industry as a flame retardant, plasticizer, and extraction agent. One of its most significant applications is in the production of hydrogen peroxide.
In the manufacture of trioctyl phosphate (TOP), it serves as a solvent for hydroanthraquinone systems. This solvent system offers high solubility for hydroanthraquinone derivatives, a favorable distribution coefficient of hydrogen peroxide between the aqueous and solvent phases, as well as a high boiling point and high flash point, ensuring efficient and safe processing.
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)
In the anthraquinone process for hydrogen peroxide production, it can serve as a substitute for hydroterpineol, enabling higher product concentration, improved quality, and reduced self-consumption during operation.
It is also suitable for use as a cold-resistant plasticizer in PVC applications, enhancing low-temperature performance.
