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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
1054	Ethane	74-84-0	C2H6	Overview

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Pure Component Data

Property	Points	Sets	Temperature Range	States	Sets
Critical Data	71	70	(hidden)	Critical Point	70
Density	6385	280	77-673 K	Gas/Vapor	96
				Liquid	87
				Supercritical	49
				Liquid Phase of VLE	24
				Vapor Phase of VLE	17
				Further States	7
Dielectric Constant	275	22	91-470 K	Liquid	11
				Gas/Vapor	10
				Further States	1
Diffusion Coefficient	1	1	305-305 K	Critical Point	1
Enthalpy (H-H298)	14	1	0-1500 K	Ideal Gas	1
Entropy	8	8	298-298 K	Gas/Vapor	7
				Liquid	1
Freezing Point (Supercooled Liq. to Crystal/Solid)	1	1	90-90 K	Solid-Liquid	1
G-function	71	4	50-3000 K	Gas/Vapor	4
Heat of Fusion	6	6	(hidden)	Solid-Liquid	6
Heat of Transition	1	1	90-90 K	Solid-Solid	1
Heat of Vaporization	84	13	100-305 K	Vapor-Liquid	13
Ideal Gas Heat Capacity	163	14	50-3000 K	Ideal Gas	14
Melting Point	31	20	(hidden)	Solid-Liquid	20
Molar Heat Capacity (cP)	440	40	16-773 K	Gas/Vapor	22
				Liquid	15
				Solid	3
Molar Heat Capacity (cV)	323	8	110-376 K	Gas/Vapor	5
				Liquid	2
				Vapor-Liquid	1
Molar Saturation Heat Capacity	115	4	94-305 K	Liquid Phase of VLE	3
				Liquid	1
Second Virial Coefficient	132	30	199-623 K	Gas/Vapor	30
Speed of Sound	980	76	91-450 K	Gas/Vapor	43
				Liquid	18
				Supercritical	15
Std. Heat of Combustion	4	4	298-298 K	Gas/Vapor	3
				Liquid	1
Std. Heat of Formation	39	7	0-1500 K	Gas/Vapor	5
				Ideal Gas	1
				Liquid	1
Surface Tension	153	15	90-305 K	Liquid	9
				Liquid Phase of VLE	6
Thermal Conductivity	1706	71	112-873 K	Gas/Vapor	52
				Supercritical	13
				Liquid	6
Transition Temperature	4	4	(hidden)	Crystal 2 > Crystal 1	2
				Crystal 3 > Crystal 2	1
				Solid-Solid	1
Triple Point	2	2	(hidden)	Solid-Liquid-Vapor	2
Vapor Pressure	1057	115	81-308 K	Vapor-Liquid	112
				Further States	3
Viscosity (Dynamic)	3144	179	95-773 K	Gas/Vapor	97
				Liquid	46
				Supercritical	36
Octanol-Water Partition Coefficients	7	7	278-323 K
Mixture P-v-T Data	46	5	240-350 K	n.a.	n.a.
Mixture Surface Tension	7	1	214-273 K	n.a.	n.a.
Mixture Flash Points	1	1	745-745 K	n.a.	n.a.

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