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Dortmund Data Bank
Thermophysical Data for Process Design
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DDB#	Name	CAS-RN	Formula
370	2,2-Dimethylbutane	75-83-2	C₆H₁₄	Overview

Property	Points	Sets	Temperature Range	States	Sets
Compressibility (isentropic)	3	3	298-298 K	Liquid	3
Compressibility (isothermal)	2	2	298-298 K	Liquid	2
Critical Data	12	12	(hidden)	Critical Point	12
Density	347	68	273-573 K	Liquid	61
				Further States	7
Dielectric Constant	14	2	273-313 K	Liquid	2
Diffusion Coefficient	1	1	298-298 K	Liquid	1
Entropy	2	2	298-298 K	Gas/Vapor	2
G-function	9	1	298-1000 K	Gas/Vapor	1
Heat of Fusion	4	4	(hidden)	Solid-Liquid	4
Heat of Transition	5	5	127-141 K	Solid-Solid	4
				Crystal 2 > Crystal 1	1
Heat of Vaporization	12	5	273-323 K	Vapor-Liquid	5
Ideal Gas Heat Capacity	17	3	298-1000 K	Ideal Gas	3
Melting Point	21	15	(hidden)	Solid-Liquid	15
Molar Heat Capacity (cP)	155	28	13-320 K	Liquid	9
				Crystal 3	7
				Crystal 1	7
				Crystal 2	5
Molar Heat Capacity (cV)	1	1	298-298 K	Liquid	1
Second Virial Coefficient	7	1	383-493 K	Gas/Vapor	1
Speed of Sound	39	10	243-486 K	Liquid	9
				Liquid Phase of VLE	1
Std. Heat of Formation	2	2	298-298 K	Gas/Vapor	2
Surface Tension	37	4	233-378 K	Liquid	4
Thermal Conductivity	17	3	257-339 K	Liquid	2
				Gas/Vapor	1
Transition Temperature	19	7	(hidden)	Solid-Solid	5
				Crystal 3 > Crystal 2	1
				Crystal 2 > Crystal 1	1
Triple Point	1	1	(hidden)	Solid-Liquid-Vapor	1
Vapor Pressure	78	27	211-338 K	Vapor-Liquid	27
Viscosity (Dynamic)	45	9	269-423 K	Liquid	7
				Gas/Vapor	2
Viscosity (Kinematic)	3	1	283-313 K	Liquid	1
Octanol-Water Partition Coefficients	3	3	298 K

Dortmund Data Bank Version: February 2024

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