Product Description of PHOSPHORIC ACID CAS#78-42-2
Phosphoric acid finds broad industrial use as flame retardants, plasticizers and extractants in chemical processes, and its key application lies in hydrogen peroxide production.
For trioctyl phosphate (TOP) fabrication, it acts as the solvent for hydroanthraquinone-based systems. The solvent boasts strong solvency for hydroanthraquinone derivatives, a proper hydrogen peroxide distribution ratio between water and solvent phases, alongside high boiling and flash points, which enables effective and risk-free manufacturing.
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PHOSPHORIC ACID Chemical Properties
| 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 |
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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.
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