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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
50	Cyclohexane	110-82-7	C₆H₁₂	Overview	Details
161	Toluene	108-88-3	C₇H₈	Overview	Details
174	Water	7732-18-5	H₂O	Overview	Details
176	p-Xylene	106-42-3	C₈H₁₀	Overview	Details
1285	Tetraethylene glycol	112-60-7	C₈H₁₈O₅	Overview	Details

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Mixture Data

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	168	64	34	4	1
50	Cyclohexane		51	15	9	n.a.
161	Toluene			8	9	1
174	Water				5	7
176	p-Xylene					n.a.

**Heats of Mixing (HE)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	137	28	76	18	n.a.
50	Cyclohexane		18	67	10	n.a.
161	Toluene			n.a.	9	n.a.
174	Water				n.a.	2
176	p-Xylene					n.a.

**Gas Solubilities (GLE)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	n.a.	1	44	n.a.	n.a.
50	Cyclohexane		1	6	n.a.	n.a.
161	Toluene			49	1	n.a.
174	Water				14	n.a.
176	p-Xylene					n.a.

**Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	15	5	291	4	15
50	Cyclohexane		5	67	4	8
161	Toluene			190	3	14
174	Water				51	6
176	p-Xylene					1

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	n.a.	n.a.	183	n.a.	n.a.
50	Cyclohexane		n.a.	66	n.a.	1
161	Toluene			136	n.a.	n.a.
174	Water				41	n.a.
176	p-Xylene					n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	16	6	1	3	n.a.
50	Cyclohexane		1	1	3	n.a.
161	Toluene			n.a.	1	n.a.
174	Water				n.a.	6
176	p-Xylene					n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	180	69	54	5	1
50	Cyclohexane		41	29	9	n.a.
161	Toluene			36	10	1
174	Water				2	2
176	p-Xylene					n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	38	11	2	10	n.a.
50	Cyclohexane		3	n.a.	2	n.a.
161	Toluene			n.a.	6	n.a.
174	Water				n.a.	3
176	p-Xylene					n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	174	52	159	57	3
50	Cyclohexane		34	n.a.	15	n.a.
161	Toluene			2	12	1
174	Water				n.a.	57
176	p-Xylene					n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	4	4	10	n.a.	n.a.
50	Cyclohexane		2	1	n.a.	n.a.
161	Toluene			10	n.a.	n.a.
174	Water				5	n.a.
176	p-Xylene					n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	107	65	n.a.	18	n.a.
50	Cyclohexane		32	n.a.	10	n.a.
161	Toluene			1	9	n.a.
174	Water				n.a.	19
176	p-Xylene					n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	15	10	13	7	n.a.
50	Cyclohexane		5	3	2	n.a.
161	Toluene			24	n.a.	n.a.
174	Water				1	1
176	p-Xylene					n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	65	9	n.a.	7	n.a.
50	Cyclohexane		18	n.a.	15	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				n.a.	24
176	p-Xylene					n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	3	20	n.a.	2	n.a.
50	Cyclohexane		4	n.a.	n.a.	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				n.a.	n.a.
176	p-Xylene					n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	3	13	23	2	1
50	Cyclohexane		1	n.a.	n.a.	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				n.a.	6
176	p-Xylene					n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	13	7	19	2	n.a.
50	Cyclohexane		1	1	n.a.	n.a.
161	Toluene			33	n.a.	n.a.
174	Water				1	n.a.
176	p-Xylene					n.a.

**Mixture Flash Points (MFLP)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	n.a.	n.a.	1	n.a.	n.a.
50	Cyclohexane		n.a.	n.a.	n.a.	n.a.
161	Toluene			n.a.	n.a.	n.a.
174	Water				n.a.	n.a.
176	p-Xylene					n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	14	4	3	n.a.	n.a.
50	Cyclohexane		11	n.a.	n.a.	n.a.
161	Toluene			1	n.a.	n.a.
174	Water				n.a.	8
176	p-Xylene					n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	44	4	28	2	n.a.
50	Cyclohexane		2	5	n.a.	n.a.
161	Toluene			19	n.a.	n.a.
174	Water				2	n.a.
176	p-Xylene					n.a.

**Total**
DDB#	Name	50	161	174	176	1285	Tetraethylene glycol
31	Benzene	996	372	941	141	21
50	Cyclohexane		230	261	79	9
161	Toluene			509	60	17
174	Water				122	141
176	p-Xylene					1

Dortmund Data Bank Version: February 2024

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