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Thermophysical Data for Process Design
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Query

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DDB#	Name	CAS-RN	Formula
25	Ethylbenzene	100-41-4	C₈H₁₀	Overview	Details
31	Benzene	71-43-2	C₆H₆	Overview	Details
161	Toluene	108-88-3	C₇H₈	Overview	Details
174	Water	7732-18-5	H₂O	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

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	7	15	4	1	n.a.
31	Benzene		64	34	72	n.a.
161	Toluene			8	43	n.a.
174	Water				260	32
1051	Methane					5

**Heats of Mixing (HE)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	4	4	n.a.	n.a.	n.a.
31	Benzene		28	76	6	n.a.
161	Toluene			n.a.	2	n.a.
174	Water				65	7
1051	Methane					n.a.

**Gas Solubilities (GLE)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	n.a.	n.a.	22	1	n.a.
31	Benzene		1	44	14	n.a.
161	Toluene			49	9	n.a.
174	Water				128	n.a.
1051	Methane					1

**Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	3	2	86	n.a.	n.a.
31	Benzene		5	291	n.a.	n.a.
161	Toluene			190	n.a.	n.a.
174	Water				n.a.	n.a.
1051	Methane					n.a.

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	n.a.	n.a.	59	n.a.	n.a.
31	Benzene		n.a.	183	n.a.	n.a.
161	Toluene			136	5	n.a.
174	Water				n.a.	n.a.
1051	Methane					n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	23	1	n.a.	n.a.	n.a.
31	Benzene		6	1	n.a.	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				n.a.	69
1051	Methane					n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	8	14	9	n.a.	n.a.
31	Benzene		69	54	5	n.a.
161	Toluene			36	12	n.a.
174	Water				11	11
1051	Methane					n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	4	2	n.a.	n.a.	n.a.
31	Benzene		11	2	20	n.a.
161	Toluene			n.a.	2	n.a.
174	Water				1	6
1051	Methane					n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	19	18	n.a.	n.a.	n.a.
31	Benzene		52	159	n.a.	n.a.
161	Toluene			2	34	n.a.
174	Water				17	145
1051	Methane					n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	1	1	2	n.a.	n.a.
31	Benzene		4	10	n.a.	n.a.
161	Toluene			10	8	n.a.
174	Water				5	n.a.
1051	Methane					n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	51	27	n.a.	n.a.	n.a.
31	Benzene		65	n.a.	8	n.a.
161	Toluene			1	35	n.a.
174	Water				n.a.	157
1051	Methane					n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	n.a.	n.a.	n.a.	n.a.	n.a.
31	Benzene		10	13	n.a.	n.a.
161	Toluene			24	n.a.	n.a.
174	Water				51	38
1051	Methane					n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	n.a.	1	n.a.	n.a.	n.a.
31	Benzene		9	n.a.	n.a.	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				n.a.	6
1051	Methane					n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	n.a.	n.a.	n.a.	n.a.	n.a.
31	Benzene		20	n.a.	n.a.	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				9	1
1051	Methane					n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	5	n.a.	n.a.	n.a.	n.a.
31	Benzene		13	23	n.a.	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				n.a.	4
1051	Methane					n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	1	1	n.a.	n.a.	n.a.
31	Benzene		7	19	13	n.a.
161	Toluene			33	6	n.a.
174	Water				20	67
1051	Methane					n.a.

**Mixture Flash Points (MFLP)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	n.a.	n.a.	n.a.	n.a.	n.a.
31	Benzene		n.a.	1	n.a.	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				n.a.	n.a.
1051	Methane					n.a.

**Gas Hydrate Data (GHD)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	n.a.	n.a.	n.a.	n.a.	n.a.
31	Benzene		n.a.	n.a.	n.a.	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				246	n.a.
1051	Methane					n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	n.a.	n.a.	n.a.	n.a.	n.a.
31	Benzene		4	3	1	n.a.
161	Toluene			1	8	n.a.
174	Water				8	9
1051	Methane					n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	1	n.a.	10	n.a.	n.a.
31	Benzene		4	28	7	n.a.
161	Toluene			19	14	n.a.
174	Water				55	18
1051	Methane					n.a.

**Total**
DDB#	Name	31	161	174	1051	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	127	86	192	2	n.a.
31	Benzene		372	941	146	n.a.
161	Toluene			509	178	n.a.
174	Water				876	570
1051	Methane					6

Dortmund Data Bank Version: February 2024

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