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Dortmund Data Bank
Thermophysical Data for Process Design
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DDB#
Name
CAS-RN
Formula
5949
3,4-Dihydroxy benzoic acid
99-50-3
C
7
H
6
O
4
Overview
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Pure Component Data
Property
Points
Sets
Temperature
Range
States
Sets
Heat of Fusion
5
5
(hidden)
Solid-Liquid
5
Heat of Sublimation
3
2
298-396 K
Vapor-Solid
2
Heat of Vaporization
2
2
494-495 K
Vapor-Liquid
2
Melting Point
6
6
(hidden)
Solid-Liquid
6
Standard Heat of Melting
1
1
298-298 K
Solid-Liquid
1
Standard Heat of Sublimation
1
1
298-298 K
Vapor-Solid
1
Standard Heat of Vaporization
1
1
298-298 K
Vapor-Liquid
1
Vapor Pressure
167
7
382-506 K
Vapor-Solid
4
Vapor-Liquid
3
Octanol-Water
Partition Coefficients
25
25
293-318 K
Pure Component Properties Data Bank Information Page
Dortmund Data Bank Version: February 2024
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