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Dortmund Data Bank
Thermophysical Data for Process Design
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Query

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DDB#	Name	CAS-RN	Formula
31	Benzene	71-43-2	C₆H₆	Overview	Details
174	Water	7732-18-5	H₂O	Overview	Details
1050	Carbon dioxide	124-38-9	CO₂	Overview	Details
1051	Methane	74-82-8	CH₄	Overview	Details
2187	Methyldiethanolamine (MDEA)	105-59-9	C₅H₁₃NO₂	Overview	Details

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Mixture Data

Number of available sets is shown

**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	34	46	72	n.a.
174	Water		363	260	32
1050	Carbon dioxide			178	3
1051	Methane				5

**Heats of Mixing (HE)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	76	4	6	n.a.
174	Water		60	65	7
1050	Carbon dioxide			84	n.a.
1051	Methane				n.a.

**Gas Solubilities (GLE)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	44	20	14	n.a.
174	Water		403	128	n.a.
1050	Carbon dioxide			n.a.	5
1051	Methane				1

**Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	291	n.a.	n.a.	n.a.
174	Water		n.a.	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
1051	Methane				n.a.

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	183	n.a.	n.a.	n.a.
174	Water		37	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
1051	Methane				n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	1	n.a.	n.a.	n.a.
174	Water		n.a.	n.a.	69
1050	Carbon dioxide			n.a.	n.a.
1051	Methane				n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	54	15	5	n.a.
174	Water		29	11	11
1050	Carbon dioxide			65	n.a.
1051	Methane				n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	2	n.a.	20	n.a.
174	Water		1	1	6
1050	Carbon dioxide			31	n.a.
1051	Methane				n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	159	1	n.a.	n.a.
174	Water		26	17	145
1050	Carbon dioxide			31	n.a.
1051	Methane				n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	10	5	n.a.	n.a.
174	Water		13	5	n.a.
1050	Carbon dioxide			13	n.a.
1051	Methane				n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	n.a.	n.a.	8	n.a.
174	Water		21	n.a.	157
1050	Carbon dioxide			36	n.a.
1051	Methane				n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	13	1	n.a.	n.a.
174	Water		70	51	38
1050	Carbon dioxide			2	n.a.
1051	Methane				n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	n.a.	n.a.	n.a.	n.a.
174	Water		n.a.	n.a.	6
1050	Carbon dioxide			n.a.	n.a.
1051	Methane				n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	n.a.	n.a.	n.a.	n.a.
174	Water		2	9	1
1050	Carbon dioxide			22	n.a.
1051	Methane				n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	23	n.a.	n.a.	n.a.
174	Water		n.a.	n.a.	4
1050	Carbon dioxide			n.a.	n.a.
1051	Methane				n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	19	4	13	n.a.
174	Water		173	20	67
1050	Carbon dioxide			134	n.a.
1051	Methane				n.a.

**Mixture Flash Points (MFLP)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	1	n.a.	n.a.	n.a.
174	Water		n.a.	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
1051	Methane				n.a.

**Gas Hydrate Data (GHD)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	n.a.	n.a.	n.a.	n.a.
174	Water		251	246	n.a.
1050	Carbon dioxide			n.a.	n.a.
1051	Methane				n.a.

**Electrical Conductivities (ECND)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	n.a.	n.a.	n.a.	n.a.
174	Water		8	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
1051	Methane				n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	3	9	1	n.a.
174	Water		28	8	9
1050	Carbon dioxide			7	n.a.
1051	Methane				n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	28	3	7	n.a.
174	Water		103	55	18
1050	Carbon dioxide			50	n.a.
1051	Methane				n.a.

**Total**
DDB#	Name	174	1050	1051	2187	Methyldiethanolamine (MDEA)
31	Benzene	941	108	146	n.a.
174	Water		1588	876	570
1050	Carbon dioxide			653	8
1051	Methane				6

Dortmund Data Bank Version: February 2024

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