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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
1053	Ethylene	74-85-1	C2H4	Overview

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Pure Component Data

Property	Points	Sets	Temperature Range	States	Sets
Compressibility (isothermal)	1	1	143-143 K	Liquid	1
Critical Data	43	43	(hidden)	Critical Point	43
Density	6512	229	20-448 K	Gas/Vapor	89
				Liquid	81
				Supercritical	28
				Liquid Phase of VLE	13
				Further States	18
Dielectric Constant	80	8	200-461 K	Gas/Vapor	5
				Liquid Phase of VLE	2
				Liquid	1
Enthalpy (H-H298)	14	1	0-1500 K	Ideal Gas	1
Entropy	6	6	298-298 K	Gas/Vapor	6
G-function	47	3	50-1500 K	Gas/Vapor	3
Heat of Fusion	1	1	(hidden)	Solid-Liquid	1
Heat of Vaporization	29	6	141-282 K	Vapor-Liquid	6
Ideal Gas Heat Capacity	102	9	50-1500 K	Ideal Gas	9
Melting Point	33	12	(hidden)	Solid-Liquid	11
				Solid-Liquid-Vapor	1
Molar Heat Capacity (cP)	78	9	15-773 K	Liquid	5
				Gas/Vapor	2
				Crystal 1	1
				Solid	1
Molar Heat Capacity (cV)	104	10	108-300 K	Vapor-Liquid	4
				Gas/Vapor	3
				Liquid	3
Second Virial Coefficient	107	23	205-473 K	Gas/Vapor	23
Speed of Sound	886	82	193-473 K	Gas/Vapor	45
				Supercritical	27
				Liquid	8
				Further States	2
Std. Heat of Combustion	3	3	298-298 K	Gas/Vapor	3
Std. Heat of Formation	16	3	0-1500 K	Gas/Vapor	3
Surface Tension	33	6	114-185 K	Liquid	6
Thermal Conductivity	821	96	113-773 K	Gas/Vapor	65
				Supercritical	18
				Liquid	13
Triple Point	2	2	(hidden)	Solid-Liquid-Vapor	2
Vapor Pressure	954	87	77-283 K	Vapor-Liquid	79
				Vapor-Solid	8
Viscosity (Dynamic)	686	78	105-1270 K	Gas/Vapor	58
				Liquid	12
				Supercritical	8
Octanol-Water Partition Coefficients	6	6	278-323 K
Mixture P-v-T Data	15	1	266-298 K	n.a.	n.a.

Pure Component Properties Data Bank Information Page
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