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Cyclopentane
Product specification Product name: Cyclopentane Cyclopentane is aliphatic group organic matter;
molecular formula: C5H10,
Molecular weight: 70.14
Physical properties
Cyclo pentane is a colorless, transparent, pungent liquid. Insoluble in water and miscible with alcohol, ether, ketone and benzene. It is very easy to burn and volatile. In case of heat or open flame, it is dangerous to burn and explode, and can form explosive mixture with air. Contact with strong oxidant is prone to biochemical reactions or cause combustion and explosion. Cyclopentane is a kind of low toxicity, which can stimulate the skin mucous membrane. It can damage the skin when exposed in large amounts and has a slight anesthetic effect when exposed in high concentration.
Cyclopentane physical constants
To use
Now it is mainly used in the field of polyurethane industry and the field of insulating materials for refrigerator and freezer. Another main use is to make styrene butadiene rubber solvent. In addition,Cyclopentane can be used as polymerization solvent for polyisoprene rubber, cellulose brewing solvent and comparative samples by gas chromatography.
Storage and transportation
Strictly avoid leakage and vessel damage, pay attention to light loading, avoid static electricity, avoid contact with fire source and strong oxidizer, and adopt cooling measures in high temperature season. The extinguisher USES foam, carbon dioxide, dry powder, sand. Water is not effective in extinguishing fire.
Cyclopentane Product specification
Cyclo pentane products indicators
Item | Index |
Cyclopentane mass fraction% ≥ | 95.0 |
n-hexane mass fraction% ≤ | 0.001 |
benzene mass fraction% ≤ | 0.0001 |
other C5 and C5 below hydrocarbon mass fraction/% | residue |
moisture mass fraction/% ≤ | 0.015 |
sulfur content/(ug/ml) ≤ | 2 |
Item | Data |
melting point ℃ | -93.8 |
boiling point (101.3Mpa)℃ | 49.25 |
relative density(101.3MPa)D429 | 0.7454 |
refractive index(20℃) | 1.4065 |
Dielectric constant(20℃) | 1.965 |
Dipole moment | 0.00 |
viscosity (25℃)mPa.s | 0.416 |
surface tension (25℃)N/m | 21.82x103 |
flashing point (lower point)℃ | -42.00 |
ignition temperature ℃ | 361 |
heat of evaporation(25℃) k/mol | 28.5 |
combusting degree(25℃) k/mol | 3072.94 |
heat of formation(25℃) kI/mol | -105.84 |
specific heat capacity(25℃,liquid,constant pressure)kJ/(kg.K) | 1.81 |
critical temperature℃ | 238.5 |
critical pressureMPa | 4.51 |
solubility (20℃,water)wt% | 0.0142 |
vapor pressure (23.572℃)kPa | 40 |
thermal conductivityW/(m·k) | 116.39x103 |
explosion rangevol% | 1.4-8.0 |












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