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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
4185	Barbituric acid	67-52-7	C4H4N2O3	Overview

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Pure Component Data

Property	Points	Sets	Temperature Range	States	Sets
Enthalpy (H-H0)	35	2	90-450 K	Solid	2
Entropy	36	3	90-1000 K	Gas/Vapor	2
				Solid	1
G-function	9	1	298-1000 K	Gas/Vapor	1
Heat of Sublimation	1	1	442-442 K	Vapor-Solid	1
Ideal Gas Heat Capacity	9	1	298-1000 K	Ideal Gas	1
Melting Point	1	1	(hidden)	Solid-Liquid	1
Molar Heat Capacity (cP)	61	2	92-450 K	Solid	2
Std. Heat of Combustion	3	3	289-298 K	Solid	2
				Crystal 1	1
Std. Heat of Formation	2	2	298-298 K	Crystal 1	1
				Gas/Vapor	1
Vapor Pressure	87	3	392-493 K	Vapor-Solid	3
Octanol-Water Partition Coefficients	3	3	ambient

Pure Component Properties Data Bank Information Page

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