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Dortmund Data Bank Thermophysical Data for Process Design Contact: ☎ +49 441 361819 0 or ✉ info@ddbst.com

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DDB#	Name	CAS-RN	Formula
134	Pentane	109-66-0	C5H12	Overview

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Pure Component Data

Property	Points	Sets	Temperature Range	States	Sets
Compressibility (isentropic)	48	3	206-308 K	Liquid	3
Compressibility (isothermal)	1	1	293-293 K	Liquid	1
Critical Data	66	64	(hidden)	Critical Point	64
Density	5030	348	143-723 K	Liquid	220
				Gas/Vapor	87
				Vapor Phase of VLE	18
				Further States	23
Dielectric Constant	72	12	183-348 K	Liquid	12
Diffusion Coefficient	9	3	213-303 K	Liquid	3
Enthalpy	66	8	379-533 K	Superheated Liquid	6
				Liquid	2
Entropy	4	4	298-298 K	Gas/Vapor	4
G-function	35	3	298-1500 K	Gas/Vapor	3
Heat of Fusion	3	3	(hidden)	Solid-Liquid	3
Heat of Vaporization	100	14	260-470 K	Vapor-Liquid	14
Ideal Gas Heat Capacity	74	10	270-1500 K	Ideal Gas	10
Joule-Thompson Coefficient (isenthalpic dT/dP)	25	10	328-378 K	Gas/Vapor	9
				Vapor Phase of VLE	1
Melting Point	30	24	(hidden)	Solid-Liquid	24
Molar Heat Capacity (cP)	555	35	12-697 K	Liquid	17
				Gas/Vapor	13
				Solid	3
				Liquid Phase of VLE	2
Molar Heat Capacity (cV)	14	1	320-470 K	Liquid	1
Second Virial Coefficient	72	12	260-648 K	Gas/Vapor	12
Speed of Sound	2044	138	153-654 K	Liquid	121
				Gas/Vapor	8
				Further States	9
Std. Heat of Combustion	5	5	298-298 K	Liquid	3
				Gas/Vapor	2
Std. Heat of Formation	6	6	298-298 K	Gas/Vapor	5
				Liquid	1
Surface Tension	170	29	144-470 K	Liquid	24
				Liquid Phase of VLE	4
				Further States	1
Thermal Conductivity	1031	96	146-657 K	Liquid	80
				Gas/Vapor	12
				Further States	4
Thermal Expansion Coefficient	96	8	278-348 K	Liquid	8
Triple Point	1	1	(hidden)	Solid-Liquid-Vapor	1
Vapor Pressure	945	159	144-471 K	Vapor-Liquid	159
Viscosity (Dynamic)	2408	291	137-648 K	Liquid	163
				Gas/Vapor	90
				Supercritical	30
				Further States	8
Viscosity (Kinematic)	1	1	298-298 K	Liquid	1
Octanol-Water Partition Coefficients	11	11	273-298 K
Mixture Surface Tension	11	1	301-423 K	n.a.	n.a.

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