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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
32	Hydrogen cyanide	74-90-8	CHN	Overview

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Pure Component Data

Property	Points	Sets	Temperature Range	States	Sets
Critical Data	2	2	(hidden)	Critical Point	2
Density	41	10	260-457 K	Liquid	9
				Gas/Vapor	1
Dielectric Constant	104	9	87-299 K	Liquid	5
				Solid	3
				Supercooled Liquid	1
Entropy	4	4	298-298 K	Gas/Vapor	4
G-function	99	4	50-6000 K	Gas/Vapor	4
Heat of Fusion	1	1	(hidden)	Solid-Liquid	1
Heat of Sublimation	9	2	190-260 K	Vapor-Solid	2
Heat of Vaporization	12	3	260-310 K	Vapor-Liquid	3
Ideal Gas Heat Capacity	106	5	17-6000 K	Ideal Gas	5
Melting Point	6	6	(hidden)	Solid-Liquid	6
Molar Heat Capacity (cP)	77	2	15-298 K	Liquid	1
				Solid	1
Second Virial Coefficient	10	3	303-383 K	Gas/Vapor	3
Surface Tension	14	2	260-298 K	Liquid	2
Thermal Conductivity	20	4	273-673 K	Gas/Vapor	4
Triple Point	1	1	(hidden)	Solid-Liquid-Vapor	1
Vapor Pressure	198	28	187-454 K	Vapor-Liquid	23
				Vapor-Solid	5
Viscosity (Dynamic)	24	3	260-608 K	Liquid	2
				Gas/Vapor	1
Electrical Conductivities	36	3	273-273 K	n.a.	n.a.

Pure Component Properties Data Bank Information Page
Why are pure component data in a mixture data bank (MSOS, MTCN, etc.)?

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