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Thermophysical Data for Process Design
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Query

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DDB#	Name	CAS-RN	Formula
41	n-Butane	106-97-8	C₄H₁₀	Overview	Details
91	Heptane	142-82-5	C₇H₁₆	Overview	Details
237	Propane	74-98-6	C₃H₈	Overview	Details
316	2-Methylpropane	75-28-5	C₄H₁₀	Overview	Details
1051	Methane	74-82-8	CH₄	Overview	Details
1054	Ethane	74-84-0	C₂H₆	Overview	Details

Search for mixtures containing this mixture as subsystem

Mixture Data

Number of available sets is shown

**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	29	81	43	115	58
91	Heptane		21	n.a.	80	35
237	Propane			60	143	90
316	2-Methylpropane				30	20
1051	Methane					171

**Heats of Mixing (HE)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	n.a.	n.a.	10	3
91	Heptane		3	n.a.	8	n.a.
237	Propane			n.a.	13	28
316	2-Methylpropane				n.a.	n.a.
1051	Methane					11

**Gas Solubilities (GLE)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	2	n.a.	n.a.	1	1
91	Heptane		2	1	21	10
237	Propane			n.a.	1	n.a.
316	2-Methylpropane				n.a.	1
1051	Methane					n.a.

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	n.a.	n.a.	n.a.	n.a.
91	Heptane		n.a.	n.a.	3	n.a.
237	Propane			n.a.	n.a.	n.a.
316	2-Methylpropane				n.a.	n.a.
1051	Methane					n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	n.a.	n.a.	3	n.a.
91	Heptane		n.a.	n.a.	17	n.a.
237	Propane			n.a.	9	n.a.
316	2-Methylpropane				n.a.	n.a.
1051	Methane					n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	4	38	18	36	21
91	Heptane		5	n.a.	24	7
237	Propane			38	34	28
316	2-Methylpropane				3	13
1051	Methane					53

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	n.a.	n.a.	5	2
91	Heptane		1	n.a.	5	1
237	Propane			n.a.	2	2
316	2-Methylpropane				n.a.	n.a.
1051	Methane					5

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	145	58	1	1
91	Heptane		n.a.	n.a.	n.a.	n.a.
237	Propane			58	4	40
316	2-Methylpropane				1	n.a.
1051	Methane					42

**Critical Data of Mixtures (CRI)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	3	9	n.a.	7	10
91	Heptane		3	n.a.	10	6
237	Propane			n.a.	8	6
316	2-Methylpropane				2	1
1051	Methane					6

**Mixture Viscosities (VIS)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	5	5	32	5
91	Heptane		15	n.a.	11	8
237	Propane			n.a.	93	13
316	2-Methylpropane				n.a.	n.a.
1051	Methane					43

**Mixture Surface Tensions (MSFT)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	n.a.	n.a.	n.a.	n.a.
91	Heptane		1	n.a.	3	n.a.
237	Propane			3	5	n.a.
316	2-Methylpropane				n.a.	n.a.
1051	Methane					9

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	n.a.	n.a.	10	n.a.
91	Heptane		n.a.	n.a.	8	n.a.
237	Propane			n.a.	21	n.a.
316	2-Methylpropane				n.a.	n.a.
1051	Methane					11

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	n.a.	n.a.	7	n.a.
91	Heptane		n.a.	n.a.	n.a.	n.a.
237	Propane			n.a.	12	n.a.
316	2-Methylpropane				n.a.	n.a.
1051	Methane					1

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	2	n.a.	1	n.a.
91	Heptane		n.a.	n.a.	n.a.	n.a.
237	Propane			1	3	1
316	2-Methylpropane				1	n.a.
1051	Methane					6

**Mixture P-v-T Data (MPVT)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	5	34	6	185	13
91	Heptane		6	n.a.	82	10
237	Propane			17	160	88
316	2-Methylpropane				52	6
1051	Methane					81

**Diffusion Coefficients (DIF)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	n.a.	1	n.a.	1	1
91	Heptane		n.a.	n.a.	5	n.a.
237	Propane			1	15	1
316	2-Methylpropane				1	1
1051	Methane					1

**Further Thermodynamic Properties (X)**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	1	1	n.a.	10	1
91	Heptane		19	1	26	2
237	Propane			1	77	5
316	2-Methylpropane				n.a.	n.a.
1051	Methane					65

**Total**
DDB#	Name	91	237	316	1051	1054	Ethane
41	n-Butane	44	316	130	424	116
91	Heptane		76	2	303	79
237	Propane			179	600	302
316	2-Methylpropane				90	42
1051	Methane					505

Dortmund Data Bank Version: February 2024

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