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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
1158	Difluoromethane [R32]	75-10-5	CH2F2	Overview

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Pure Component Data

Property	Points	Sets	Temperature Range	States	Sets
Critical Data	18	18	(hidden)	Critical Point	18
Density	5406	240	142-473 K	Gas/Vapor	96
				Liquid	91
				Supercritical	29
				Liquid Phase of VLE	14
				Further States	10
Dielectric Constant	234	16	152-411 K	Liquid	14
				Gas/Vapor	2
Entropy	4	4	298-298 K	Gas/Vapor	4
Freezing Point (Supercooled Liq. to Crystal/Solid)	1	1	136-136 K	Supercooled Liquid - Solid	1
G-function	56	4	100-1500 K	Gas/Vapor	4
Heat of Fusion	2	2	(hidden)	Solid-Liquid-Vapor	1
				Solid-Liquid	1
Heat of Vaporization	27	1	220-351 K	Vapor-Liquid	1
Ideal Gas Heat Capacity	124	8	100-1500 K	Ideal Gas	8
Melting Point	1	1	(hidden)	Solid-Liquid	1
Molar Heat Capacity (cP)	218	16	200-353 K	Liquid	11
				Gas/Vapor	4
				Vapor Phase of VLE	1
Molar Heat Capacity (cV)	173	3	220-340 K	Gas/Vapor	2
				Liquid	1
Molar Saturation Heat Capacity	101	1	141-342 K	Liquid Phase of VLE	1
Second Virial Coefficient	31	5	200-463 K	Gas/Vapor	5
Speed of Sound	935	56	227-373 K	Liquid	37
				Gas/Vapor	18
				Further States	1
Std. Heat of Formation	20	2	0-1500 K	Ideal Gas	1
				Gas/Vapor	1
Surface Tension	167	13	222-348 K	Liquid	11
				Liquid Phase of VLE	2
Thermal Conductivity	1304	92	120-466 K	Liquid	42
				Gas/Vapor	34
				Supercritical	11
				Further States	5
Triple Point	7	5	(hidden)	Solid-Liquid-Vapor	5
Vapor Pressure	962	93	179-352 K	Vapor-Liquid	93
Viscosity (Dynamic)	430	41	200-423 K	Liquid	26
				Gas/Vapor	12
				Liquid Phase of VLE	3
Viscosity (Kinematic)	19	2	233-348 K	Liquid Phase of VLE	1
				Liquid	1
Octanol-Water Partition Coefficients	5	5	278-323 K

Pure Component Properties Data Bank Information Page

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