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(organic chemistry)
C5H10 A cyclic hydrocarbon that is a colorless liquid; present in crude petroleum, it is converted during refining to aromatics which improve antiknock and combustion properties of gasoline.



(also pentamethylene), a saturated alicyclic hydrocarbon having the structural formula

Cyclopentane is one of the simplest cycloalkanes. A colorless liquid with a characteristic odor, it has a boiling point of 49.3°C, a melting point of –93.9°C, and a density of 0.745 g/cm3 at 20°C. Cyclopentane is insoluble in water, but it is miscible with benzene, ether, and acetone. It is a component of petroleums.

References in periodicals archive ?
studied the relationship between various processing variables and key physical properties of experimental polyurethane foam systems blown with cyclopentane.
According to DuPont, rigid PUR and PIR foams produced with FEA-1100 blended with either HFC-365mfc or cyclopentane show good dimensional stability and uniform cell size.
The heavier blowing agents such as HFC 365mfc and HFC 245ca and the hydrocarbons such as pentane, isopentane and cyclopentane shows, greater solubility in all four polyols even at low pressures.
The process is by fixing mold in the cabinet and then put into machine to be injected with a mixture of premix, cyclopentane isocyanate.
The up-front capital investment required to handle cyclopentane safely and the cost of lost production while converting factory equipment to a cyclopentane system appears to be higher than U.
Alternatives to CFCs are hydro-CFCs (HCFCs), cyclopentane, and vacuum insulation panels.
Using Fischer-Hirschfelder-Taylor space filling models (Fischer) of the 2-(2-pyridyl) cyclopentanone and the 2-(2-pyridyl) cyclohexanone, the cycloalkane ring is rigid in both the enol and the keto form but steric interactions appear greater in the keto form of the cyclopentane ring and in the enol form of the cyclohexane ring thus favoring the enol form in the five membered ring and the keto form for the six membered ring.
to use cyclopentane foam, which reduces the greenhouse gas emissions during manufacturing and at the end of the product's life cycle, ultimately making this line better for the environment.
Tenders are invited for Double Door Frost Free Refrigerator To Work On Single Phase 230V Ac, 50 Hz Stabilizer Free Operation, With Environment Friendly R134a Refrigerant And Cyclopentane Insulation Confirming To Is:1476 Part 1 2000 With Minimum Four Star Rating 310 Litres.
Tracer ID Ortho-perfluoro, dicyclohexane o-PDCH Perfluoro, methyl, cyclohexane PMCH Perfluoro, methyl, cyclopentane PMCP Iso-perfluoro, propyl, cyclohexane i-PPCH Perfluoro, trimethyl, cyclohexane PTCH Perfluoro, dimethyl, cyclobutane PDCB Tracer Location Ortho-perfluoro, dicyclohexane Indoor atrium Perfluoro, methyl, cyclohexane North designated smoking area Perfluoro, methyl, cyclopentane South designated smoking area Iso-perfluoro, propyl, cyclohexane North unofficial Smoking area Perfluoro, trimethyl, cyclohexane South unofficial smoking area #1-outdoor seating Perfluoro, dimethyl, cyclobutane South unofficial smoking area #2-north wing exit Release Normalized Rate Rate (*) Tracer (nL/min) Ortho-perfluoro, dicyclohexane 1.