Cyclopentane, C 5 H 10

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Cyclopentane, C₅H₁₀
Categories:	Fluid; Solvent
Key Words:	C5H10
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Physical Properties	Original Value	Comments

Density	0.745 g/cc @Temperature 20.0 °C
Viscosity	0.428 cP @Temperature 20.0 °C	Dynamic Viscosity
Molecular Weight	70.135 g/mol
Vapor Pressure	256.693 torr @Temperature 20.0 °C
Surface Tension	22.61 dynes/cm @Temperature 20.0 °C

Chemical Properties	Original Value	Comments
Critical Pressure	44.5 atm
Critical Temperature	239 °C
Critical Density	0.270 g/cc
Critical Molar Volume	260 cm³/mol

Thermal Properties	Original Value	Comments
Heat of Vaporization	389.2 J/g
Specific Heat Capacity	1.182 J/g-°C @Temperature 25.0 °C	Vapor
Thermal Conductivity	0.1266 W/m-K @Temperature 20.0 °C
Melting Point	-93.9 °C
Boiling Point	49.3 °C

Optical Properties	Original Value	Comments
Refractive Index	1.407 @Wavelength 589.3 nm	n_D

Descriptive Properties
Antoine's Vapor Pressure A Parameter	15.8574
Antoine's Vapor Pressure B Parameter	2558.48
Antoine's Vapor Pressure C Parameter	-41.79
Antoine's Vapor Pressure Formula	ln π_p = A - B/(T+C)	P in mmHg and T in K
CAS registry number (CARN)	287-92-3
Chemical Formula	C₅H₁₀
Critical Compressibility (Zc)	0.276
Dipole moment (p/C.m)	none
Henry's Law Constant (atm m³/mol)	0.188
Molar Heat Capacity (298K)	82.876 J/mol-K
Molar Heat Capacity of Vapor a Parameter	-53.5887
Molar Heat Capacity of Vapor b Parameter	0.5422
Molar Heat Capacity of Vapor c Parameter	-0.0003029
Molar Heat Capacity of Vapor d Parameter	6.451E-08
Molar Heat Capacity of Vapor Formula	C_p = a + bT + cT² + dT³	C_p in J/mol-K
UN Number	2246
UV cut-off (nm)	210

References for this datasheet.

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