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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
887	Deuterium oxide (Heavy water)	7789-20-0	D2O	Overview

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Pure Component Data

Property	Points	Sets	Temperature Range	States	Sets
Critical Data	12	12	(hidden)	Critical Point	12
Density	2521	256	160-773 K	Liquid	165
				Gas/Vapor	66
				Supercritical	16
				Further States	9
Dielectric Constant	49	14	133-823 K	Supercritical	6
				Liquid	4
				Solid	2
				Vapor Phase of VLE	1
				Supercooled Liquid	1
Diffusion Coefficient	4	1	283-363 K	Liquid	1
Enthalpy	41	2	5-350 K	Liquid	1
				Solid	1
Entropy	1	1	298-298 K	Gas/Vapor	1
G-function	80	1	50-5000 K	Gas/Vapor	1
Heat of Fusion	3	3	(hidden)	Solid-Liquid	3
Heat of Vaporization	26	3	273-503 K	Vapor-Liquid	3
Ideal Gas Heat Capacity	80	1	50-5000 K	Ideal Gas	1
Melting Point	6	6	(hidden)	Solid-Liquid	6
Molar Heat Capacity (cP)	731	60	7-728 K	Liquid	34
				Gas/Vapor	12
				Supercritical	7
				Supercooled Liquid	4
				Solid	3
Molar Heat Capacity (cV)	687	29	294-743 K	Liquid	23
				Gas/Vapor	5
				Further States	1
Second Virial Coefficient	60	2	423-773 K	Gas/Vapor	2
Speed of Sound	544	62	271-648 K	Liquid	58
				Further States	4
Surface Tension	232	6	273-642 K	Liquid	6
Thermal Conductivity	2315	234	263-1043 K	Liquid	174
				Gas/Vapor	49
				Further States	11
Triple Point	2	2	(hidden)	Solid-Liquid-Vapor	2
Vapor Pressure	314	21	233-645 K	Vapor-Liquid	17
				Supercooled Liquid > Vapor	3
				Further States	1
Viscosity (Dynamic)	1328	131	242-2073 K	Liquid	108
				Gas/Vapor	13
				Further States	10
Viscosity (Kinematic)	30	23	288-561 K	Liquid	23
Electrical Conductivities	6	1	369-548 K	n.a.	n.a.

Pure Component Properties Data Bank Information Page
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