Product Description of Phosphoric Acid (CAS#78-42-2)
Phosphoric acid is widely applied in the chemical industry as a flame retardant, plasticizer and extractant. A major application of this product lies in hydrogen peroxide production.
When manufacturing trioctyl phosphate (TOP), it acts as the solvent for hydroanthraquinone systems. This solvent system provides excellent solubility for hydroanthraquinone derivatives, a favorable hydrogen peroxide partition coefficient between the aqueous and organic phases, along with a high boiling point and high flash point, which guarantees efficient and safe operation of the process.
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) |
Product Application of Phosphoric Acid (CAS#78-42-2)
In the hydrogen‑peroxide manufacturing process, it can act as a replacement for hydroterpineol. It delivers higher product concentration, improved finished‑product quality and lowers material consumption during operation.
Additionally, it functions as a cold‑resistant plasticizer for PVC formulations to boost low‑temperature performance of PVC products.
