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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
50	Cyclohexane	110-82-7	C₆H₁₂	Overview	Details
91	Heptane	142-82-5	C₇H₁₆	Overview	Details
110	Methanol	67-56-1	CH₄O	Overview	Details
161	Toluene	108-88-3	C₇H₈	Overview	Details

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Mixture Data

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	36	46	51
91	Heptane		30	52
110	Methanol			16

**Heats of Mixing (HE)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	18	34	18
91	Heptane		17	18
110	Methanol			14

**Gas Solubilities (GLE)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	n.a.	n.a.	1
91	Heptane		n.a.	n.a.
110	Methanol			1

**Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	9	28	5
91	Heptane		52	9
110	Methanol			36

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	n.a.	126	n.a.
91	Heptane		74	n.a.
110	Methanol			n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	12	n.a.	1
91	Heptane		4	8
110	Methanol			n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	30	57	41
91	Heptane		30	44
110	Methanol			32

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	n.a.	26	3
91	Heptane		n.a.	3
110	Methanol			1

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	71	34	34
91	Heptane		20	49
110	Methanol			58

**Critical Data of Mixtures (CRI)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	3	14	2
91	Heptane		3	n.a.
110	Methanol			n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	13	22	32
91	Heptane		6	18
110	Methanol			22

**Mixture Surface Tensions (MSFT)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	5	9	5
91	Heptane		n.a.	5
110	Methanol			6

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	3	3	18
91	Heptane		8	8
110	Methanol			6

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	n.a.	n.a.	4
91	Heptane		n.a.	5
110	Methanol			3

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	n.a.	8	1
91	Heptane		2	n.a.
110	Methanol			3

**Mixture P-v-T Data (MPVT)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	13	6	1
91	Heptane		4	3
110	Methanol			1

**Mixture Flash Points (MFLP)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	n.a.	n.a.	n.a.
91	Heptane		3	n.a.
110	Methanol			2

**Electrical Conductivities (ECND)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	n.a.	1	n.a.
91	Heptane		n.a.	n.a.
110	Methanol			n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	4	1	11
91	Heptane		n.a.	6
110	Methanol			7

**Further Thermodynamic Properties (X)**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	n.a.	10	2
91	Heptane		3	1
110	Methanol			1

**Total**
DDB#	Name	91	110	161	Toluene
50	Cyclohexane	217	425	230
91	Heptane		256	229
110	Methanol			209

Dortmund Data Bank Version: February 2024

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