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Dortmund Data Bank
Thermophysical Data for Process Design
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DDB#
Name
CAS-RN
Formula
4055
N,N-Diethylurea
634-95-7
C
5
H
1
2
N
2
O
Overview
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Pure Component Data
Property
Points
Sets
Temperature
Range
States
Sets
Density
1
1
293-293 K
Solid
1
G-function
40
2
0-330 K
Crystal 2
1
Crystal 1
1
Heat of Fusion
3
3
(hidden)
Solid-Liquid
2
Solid
1
Heat of Sublimation
15
2
312-339 K
Vapor-Solid
2
Heat of Transition
1
1
197-197 K
Crystal 2 > Crystal 1
1
Heat of Vaporization
4
4
320-361 K
Vapor-Liquid
2
Vapor-Solid
2
Melting Point
1
1
(hidden)
Solid-Liquid
1
Molar Heat Capacity (cP)
110
7
11-400 K
Crystal 2
3
Crystal 1
3
Liquid
1
Std. Heat of Formation
2
2
298-298 K
Gas/Vapor
1
Solid
1
Vapor Pressure
36
3
305-372 K
Vapor-Solid
2
Vapor-Liquid
1
Pure Component Properties Data Bank Information Page
Dortmund Data Bank Version: February 2024
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