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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
1050	Carbon dioxide	124-38-9	CO₂	Overview	Details
1051	Methane	74-82-8	CH₄	Overview	Details
1054	Ethane	74-84-0	C₂H₆	Overview	Details
1292	Helium	7440-59-7	He	Overview	Details

Search for mixtures containing this mixture as subsystem

Mixture Data

Number of available sets is shown

**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	178	85	30
1051	Methane		171	99
1054	Ethane			36

**Heats of Mixing (HE)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	84	136	n.a.
1051	Methane		11	n.a.
1054	Ethane			1

**(A)zeotropic Data (AZD)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	65	53	n.a.
1051	Methane		53	n.a.
1054	Ethane			n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	31	6	n.a.
1051	Methane		5	n.a.
1054	Ethane			n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	31	106	12
1051	Methane		42	n.a.
1054	Ethane			n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	13	12	1
1051	Methane		6	n.a.
1054	Ethane			n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	36	35	37
1051	Methane		43	4
1054	Ethane			n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	2	n.a.	n.a.
1051	Methane		9	9
1054	Ethane			n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	n.a.	n.a.	n.a.
1051	Methane		11	10
1054	Ethane			n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	22	12	5
1051	Methane		1	4
1054	Ethane			n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	n.a.	n.a.	n.a.
1051	Methane		6	n.a.
1054	Ethane			n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	134	217	27
1051	Methane		81	35
1054	Ethane			n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	7	1	5
1051	Methane		1	1
1054	Ethane			1

**Further Thermodynamic Properties (X)**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	50	26	1
1051	Methane		65	10
1054	Ethane			n.a.

**Total**
DDB#	Name	1051	1054	1292	Helium
1050	Carbon dioxide	653	689	118
1051	Methane		505	172
1054	Ethane			38

Dortmund Data Bank Version: February 2024

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