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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
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	2187	Methyldiethanolamine (MDEA)
25	Ethylbenzene	7	15	4	n.a.
31	Benzene		64	34	n.a.
161	Toluene			8	n.a.
174	Water				32

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Dortmund Data Bank Version: February 2024

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