TH-dimer
| TH-dimer | |
|---|---|
| File:Tetrahydromethylcyclopentadiene dimer.png | |
| Octahydrodimethyl-4,7-methano-1H-indene | |
| Other names Tetrahydromethylcyclopentadiene dimer; Tetrahydrodimethyldicyclopentadiene; THDMDCP; RJ-4; RJ4 | |
| Identifiers | |
| CAS number | 30496-78-7 |
| Molecular formula | C12H20 |
| Molar mass | 164.29 g mol−1 |
| Hazards | |
| Flash point | 60 °C |
| 14px (verify) (what is: 10px/10px?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
TH-dimer, also called tetrahydromethylcyclopentadiene dimer[1] or RJ-4, is a liquid fuel used in missiles. For example, TH-dimer is used in the turbofan engine of the BGM-109 Tomahawk cruise missile. It is also a component of the jet fuel JP-9.
The fuel is non-volatile so it is safe to use on ships or submarines. It has a high flash point minimum of 60 °C.[2]
Chemically, TH-dimer is a mixture of isomeric saturated hydrocarbons derived from hydrogenation of the dimer of methylcyclopentadiene.[3]
References
- ↑ Naval Submarine Base New London
- ↑ Modern US Military Turbine Missile Fuel Specifications
- ↑ US 4177217, Janoski, Edward J.; Mitchell, Richard E.; Schneider, Abraham, "Continuous conversion of dimethyldicyclopentadiene to endo-dimethyldicyclopentadiene, a missile fuel", issued 1979
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