
Tert butyl hydroperoxide (TBHP) is a colorless to pale yellow, transparent, oily liquid with a pungent odor; it belongs to the class of organic peroxides. Molecular formula: C₄H₁₀O₂; molecular weight: 90.12. It is chemically reactive and serves as a key fine chemical raw material in various fields, including as a polymerization initiator, an oxidizing agent in organic synthesis, a rubber vulcanizing agent, and a diesel cetane improver; it is also an important intermediate in organic synthesis.
| Item | Specification |
| Melting Point | -2.8°C |
| Boiling Point | 37°C (15 mmHg) |
| Density | 0.937 g/mL at 20°C |
| Flash Point | 30–35°C (closed cup) |
| Vapor Pressure | 62 mmHg at 45°C |
| Refractive Index | n 20/D 1.403 |
| Solubility | Solubility in water at 20°C is 12 g/L; readily soluble in organic solvents such as alcohols, ethers, and benzene. |
| Stability | Stable below 75°C; begins to lose oxygen at 90–100°C; violently explosive at 250°C |
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