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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
39	1-Butanol	71-36-3	C₄H₁₀O	Overview	Details
128	Octane	111-65-9	C₈H₁₈	Overview	Details
144	Pyridine	110-86-1	C₅H₅N	Overview	Details
176	p-Xylene	106-42-3	C₈H₁₀	Overview	Details

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Mixture Data

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	19	5	9
128	Octane		5	3
144	Pyridine			n.a.

**Heats of Mixing (HE)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	7	1	4
128	Octane		4	1
144	Pyridine			4

**Gas Solubilities (GLE)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	1	n.a.	n.a.
128	Octane		2	1
144	Pyridine			n.a.

**Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	24	n.a.	3
128	Octane		4	4
144	Pyridine			1

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	n.a.	n.a.	n.a.
128	Octane		1	n.a.
144	Pyridine			n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	27	8	13
128	Octane		5	3
144	Pyridine			1

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	2	n.a.	1
128	Octane		2	n.a.
144	Pyridine			1

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	19	8	9
128	Octane		1	27
144	Pyridine			1

**Critical Data of Mixtures (CRI)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	2	n.a.	n.a.
128	Octane		3	n.a.
144	Pyridine			n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	10	5	5
128	Octane		n.a.	7
144	Pyridine			5

**Mixture Surface Tensions (MSFT)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	1	n.a.	n.a.
128	Octane		n.a.	1
144	Pyridine			n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	6	2	2
128	Octane		n.a.	n.a.
144	Pyridine			1

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	n.a.	n.a.	1
128	Octane		n.a.	n.a.
144	Pyridine			1

**Mixture P-v-T Data (MPVT)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	30	n.a.	n.a.
128	Octane		n.a.	n.a.
144	Pyridine			n.a.

**Mixture Flash Points (MFLP)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	5	n.a.	1
128	Octane		n.a.	n.a.
144	Pyridine			n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	4	n.a.	n.a.
128	Octane		n.a.	n.a.
144	Pyridine			n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	1	1	n.a.
128	Octane		n.a.	n.a.
144	Pyridine			n.a.

**Total**
DDB#	Name	128	144	176	p-Xylene
39	1-Butanol	158	30	48
128	Octane		27	47
144	Pyridine			15

Dortmund Data Bank Version: February 2024

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