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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
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
1056	Nitrogen	7727-37-9	N₂	Overview	Details
1065	Hydrogen sulfide	7783-06-4	H₂S	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	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	363	260	122	87	32
1050	Carbon dioxide		178	138	57	3
1051	Methane			140	39	5
1056	Nitrogen				8	n.a.
1065	Hydrogen sulfide					n.a.

**Heats of Mixing (HE)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	60	65	128	13	7
1050	Carbon dioxide		84	78	n.a.	n.a.
1051	Methane			50	9	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Gas Solubilities (GLE)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	403	128	265	122	n.a.
1050	Carbon dioxide		n.a.	n.a.	n.a.	5
1051	Methane			n.a.	n.a.	1
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					1

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	37	n.a.	n.a.	14	n.a.
1050	Carbon dioxide		n.a.	n.a.	n.a.	n.a.
1051	Methane			n.a.	2	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	n.a.	n.a.	n.a.	69
1050	Carbon dioxide		n.a.	n.a.	n.a.	n.a.
1051	Methane			4	n.a.	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	29	11	2	n.a.	11
1050	Carbon dioxide		65	26	19	n.a.
1051	Methane			58	4	n.a.
1056	Nitrogen				7	n.a.
1065	Hydrogen sulfide					n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	1	1	1	n.a.	6
1050	Carbon dioxide		31	9	7	n.a.
1051	Methane			8	1	n.a.
1056	Nitrogen				1	n.a.
1065	Hydrogen sulfide					n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	26	17	15	n.a.	145
1050	Carbon dioxide		31	24	n.a.	n.a.
1051	Methane			71	1	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	13	5	2	13	n.a.
1050	Carbon dioxide		13	9	2	n.a.
1051	Methane			6	3	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	21	n.a.	n.a.	1	157
1050	Carbon dioxide		36	18	5	n.a.
1051	Methane			55	3	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	70	51	28	5	38
1050	Carbon dioxide		2	n.a.	n.a.	n.a.
1051	Methane			15	n.a.	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	n.a.	n.a.	n.a.	6
1050	Carbon dioxide		n.a.	1	n.a.	n.a.
1051	Methane			6	n.a.	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	2	9	2	n.a.	1
1050	Carbon dioxide		22	18	12	n.a.
1051	Methane			21	n.a.	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	n.a.	n.a.	n.a.	4
1050	Carbon dioxide		n.a.	n.a.	n.a.	n.a.
1051	Methane			16	n.a.	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	173	20	12	8	67
1050	Carbon dioxide		134	173	52	n.a.
1051	Methane			118	48	n.a.
1056	Nitrogen				11	n.a.
1065	Hydrogen sulfide					n.a.

**Gas Hydrate Data (GHD)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	251	246	30	42	n.a.
1050	Carbon dioxide		n.a.	n.a.	n.a.	n.a.
1051	Methane			n.a.	n.a.	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Electrical Conductivities (ECND)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	8	n.a.	n.a.	10	n.a.
1050	Carbon dioxide		n.a.	n.a.	n.a.	n.a.
1051	Methane			n.a.	n.a.	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	28	8	6	8	9
1050	Carbon dioxide		7	12	n.a.	n.a.
1051	Methane			2	n.a.	n.a.
1056	Nitrogen				n.a.	n.a.
1065	Hydrogen sulfide					n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	103	55	18	13	18
1050	Carbon dioxide		50	14	54	n.a.
1051	Methane			44	16	n.a.
1056	Nitrogen				7	n.a.
1065	Hydrogen sulfide					n.a.

**Total**
DDB#	Name	1050	1051	1056	1065	2187	Methyldiethanolamine (MDEA)
174	Water	1588	876	631	336	570
1050	Carbon dioxide		653	520	208	8
1051	Methane			614	126	6
1056	Nitrogen				34	n.a.
1065	Hydrogen sulfide					1

Dortmund Data Bank Version: February 2024

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