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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
1942	Propyne	74-99-7	C3H4	Overview

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Pure Component Data

Property	Points	Sets	Temperature Range	States	Sets
Critical Data	6	6	(hidden)	Critical Point	6
Density	713	43	203-473 K	Liquid	25
				Gas/Vapor	10
				Liquid Phase of VLE	4
				Further States	4
Dielectric Constant	13	4	185-348 K	Gas/Vapor	3
				Liquid	1
Enthalpy (H-H0)/T	3	1	298-700 K	Gas/Vapor	1
Enthalpy (H-H298)	14	1	0-1500 K	Ideal Gas	1
Entropy	4	4	298-298 K	Gas/Vapor	4
G-function	23	3	250-1500 K	Gas/Vapor	3
Heat of Vaporization	2	1	250-298 K	Vapor-Liquid	1
Ideal Gas Heat Capacity	40	4	250-1500 K	Ideal Gas	4
Melting Point	7	7	(hidden)	Solid-Liquid	7
Molar Heat Capacity (cP)	18	3	223-773 K	Gas/Vapor	2
				Liquid	1
Std. Heat of Combustion	1	1	298-298 K	Gas/Vapor	1
Std. Heat of Formation	14	1	0-1500 K	Gas/Vapor	1
Surface Tension	16	5	221-262 K	Liquid	5
Thermal Conductivity	22	4	223-773 K	Gas/Vapor	3
				Liquid	1
Vapor Pressure	193	28	159-402 K	Vapor-Liquid	28
Viscosity (Dynamic)	29	3	223-773 K	Gas/Vapor	2
				Liquid	1
Octanol-Water Partition Coefficients	1	1	ambient

Pure Component Properties Data Bank Information Page

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