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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
237	Propane	74-98-6	C₃H₈	Overview	Details
284	N-Methyl-2-pyrrolidone	872-50-4	C₅H₉NO	Overview	Details
1050	Carbon dioxide	124-38-9	CO₂	Overview	Details
2187	Methyldiethanolamine (MDEA)	105-59-9	C₅H₁₃NO₂	Overview	Details

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Mixture Data

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	89	30	363	32
237	Propane		20	100	n.a.
284	N-Methyl-2-pyrrolidone			53	n.a.
1050	Carbon dioxide				3

**Heats of Mixing (HE)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	5	16	60	7
237	Propane		n.a.	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			9	n.a.
1050	Carbon dioxide				n.a.

**Gas Solubilities (GLE)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	21	1	403	n.a.
237	Propane		19	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			33	n.a.
1050	Carbon dioxide				5

**Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	46	13	n.a.	n.a.
237	Propane		4	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			3	n.a.
1050	Carbon dioxide				n.a.

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	15	n.a.	37	n.a.
237	Propane		7	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	21	n.a.	69
237	Propane		n.a.	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	16	27	29	11
237	Propane		n.a.	47	n.a.
284	N-Methyl-2-pyrrolidone			3	n.a.
1050	Carbon dioxide				n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	5	1	6
237	Propane		n.a.	5	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	253	26	145
237	Propane		n.a.	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	5	n.a.	13	n.a.
237	Propane		n.a.	11	n.a.
284	N-Methyl-2-pyrrolidone			1	n.a.
1050	Carbon dioxide				n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	34	21	157
237	Propane		n.a.	2	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	7	5	70	38
237	Propane		n.a.	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	12	n.a.	6
237	Propane		n.a.	34	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	n.a.	2	1
237	Propane		n.a.	1	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	10	n.a.	4
237	Propane		n.a.	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	n.a.	173	67
237	Propane		n.a.	110	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Gas Hydrate Data (GHD)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	68	n.a.	251	n.a.
237	Propane		n.a.	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Electrical Conductivities (ECND)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	n.a.	n.a.	8	n.a.
237	Propane		n.a.	n.a.	n.a.
284	N-Methyl-2-pyrrolidone			n.a.	n.a.
1050	Carbon dioxide				n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	2	4	28	9
237	Propane		n.a.	5	n.a.
284	N-Methyl-2-pyrrolidone			1	n.a.
1050	Carbon dioxide				n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	34	3	103	18
237	Propane		n.a.	2	n.a.
284	N-Methyl-2-pyrrolidone			2	n.a.
1050	Carbon dioxide				n.a.

**Total**
DDB#	Name	237	284	1050	2187	Methyldiethanolamine (MDEA)
174	Water	308	434	1588	570
237	Propane		50	317	n.a.
284	N-Methyl-2-pyrrolidone			105	n.a.
1050	Carbon dioxide				8

Dortmund Data Bank Version: February 2024

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