TH-dimer

TH-dimer
Names
	Other names Tetrahydromethylcyclopentadiene dimer; Tetrahydrodimethyldicyclopentadiene; THDMDCP; RJ-4; RJ4
Identifiers
CAS Number	30496-78-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	108605;
EC Number	250-218-7;
PubChem CID	121721;
	InChI InChI=1S/C12H20/c1-7-8(2)12-6-11(7)9-4-3-5-10(9)12/h7-12H,3-6H2,1-2H3 Key: XGTOHMPHWPGRTK-UHFFFAOYSA-N;
	SMILES CC1C(C2CC1C3C2CCC3)C;
Properties
Chemical formula	C12H20
Molar mass	164.292 g·mol−1
Density	0.915 g/cm3
Hazards
Flash point	60 °C (140 °F; 333 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

TH-dimer, also called tetrahydromethylcyclopentadiene dimer^[1] or RJ-4, is a synthetic jet fuel used in jet engines for missiles. RJ-4 was originaly developed for the ramjet engine on RIM-8 Talos naval surface-to-air missile.^[2]

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 (140 °F).^[3]

References

^ Naval Submarine Base New London
^ Schmidt 2022b, p. 4456.
^ "Modern US Military Turbine Missile Fuel Specifications". Archived from the original on 2012-02-05. Retrieved 2006-09-12.
^ US 4177217, Janoski, Edward J.; Mitchell, Richard E.; Schneider, Abraham, "Continuous conversion of dimethyldicyclopentadiene to endo-dimethyldicyclopentadiene, a missile fuel", issued 1979

Schmidt, Eckart W. (2022a). "Tetrahydrodimethyldicyclopentadiene". Cycloaliphatic Hydrocarbons. Encyclopedia of Liquid Fuels. De Gruyter. pp. 1273–1275. doi:10.1515/9783110750287-015. ISBN 978-3-11-075028-7.
Schmidt, Eckart W. (2022b). "Ramjet Fuel RJ-4". Ramjet Fuels. Encyclopedia of Liquid Fuels. De Gruyter. pp. 4455–4458. doi:10.1515/9783110750287-037. ISBN 978-3-11-075028-7.

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