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Dortmund Data Bank
Thermophysical Data for Process Design
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DDB#	Name	CAS-RN	Formula
174	Water	7732-18-5	H₂O	Overview	Details
1051	Methane	74-82-8	CH₄	Overview	Details
1052	Oxygen	7782-44-7	O₂	Overview	Details
1056	Nitrogen	7727-37-9	N₂	Overview	Details
19643	Tetrabutylphosphonium bromide	3115-68-2	C₁₆H₃₆BrP	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	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	260	29	122	n.a.
1051	Methane		1	140	n.a.
1052	Oxygen			80	n.a.
1056	Nitrogen				n.a.

**Heats of Mixing (HE)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	65	1	128	n.a.
1051	Methane		n.a.	50	n.a.
1052	Oxygen			11	n.a.
1056	Nitrogen				n.a.

**Gas Solubilities (GLE)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	128	231	265	n.a.
1051	Methane		n.a.	n.a.	n.a.
1052	Oxygen			n.a.	n.a.
1056	Nitrogen				n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	n.a.	n.a.	n.a.	n.a.
1051	Methane		n.a.	4	n.a.
1052	Oxygen			n.a.	n.a.
1056	Nitrogen				n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	11	5	2	n.a.
1051	Methane		n.a.	58	n.a.
1052	Oxygen			36	n.a.
1056	Nitrogen				n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	1	1	1	8
1051	Methane		6	8	n.a.
1052	Oxygen			2	n.a.
1056	Nitrogen				n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	17	n.a.	15	3
1051	Methane		n.a.	71	n.a.
1052	Oxygen			9	n.a.
1056	Nitrogen				n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	5	1	2	n.a.
1051	Methane		1	6	n.a.
1052	Oxygen			2	n.a.
1056	Nitrogen				n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	n.a.	2	n.a.	6
1051	Methane		n.a.	55	n.a.
1052	Oxygen			20	n.a.
1056	Nitrogen				n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	51	3	28	n.a.
1051	Methane		n.a.	15	n.a.
1052	Oxygen			6	n.a.
1056	Nitrogen				n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	n.a.	n.a.	n.a.	n.a.
1051	Methane		n.a.	6	n.a.
1052	Oxygen			n.a.	n.a.
1056	Nitrogen				n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	9	4	2	n.a.
1051	Methane		n.a.	21	n.a.
1052	Oxygen			6	n.a.
1056	Nitrogen				n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	n.a.	n.a.	n.a.	n.a.
1051	Methane		n.a.	16	n.a.
1052	Oxygen			n.a.	n.a.
1056	Nitrogen				n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	20	n.a.	12	n.a.
1051	Methane		n.a.	118	n.a.
1052	Oxygen			n.a.	n.a.
1056	Nitrogen				n.a.

**Mixture Flash Points (MFLP)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	n.a.	n.a.	n.a.	n.a.
1051	Methane		1	n.a.	n.a.
1052	Oxygen			n.a.	n.a.
1056	Nitrogen				n.a.

**Gas Hydrate Data (GHD)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	246	9	30	7
1051	Methane		n.a.	n.a.	n.a.
1052	Oxygen			n.a.	n.a.
1056	Nitrogen				n.a.

**Electrical Conductivities (ECND)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	n.a.	n.a.	n.a.	3
1051	Methane		n.a.	n.a.	n.a.
1052	Oxygen			n.a.	n.a.
1056	Nitrogen				n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	8	4	6	n.a.
1051	Methane		n.a.	2	n.a.
1052	Oxygen			5	n.a.
1056	Nitrogen				n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	55	7	18	2
1051	Methane		1	44	n.a.
1052	Oxygen			9	n.a.
1056	Nitrogen				n.a.

**Total**
DDB#	Name	1051	1052	1056	19643	Tetrabutylphosphonium bromide
174	Water	876	297	631	29
1051	Methane		10	614	n.a.
1052	Oxygen			186	n.a.
1056	Nitrogen				n.a.

Dortmund Data Bank Version: February 2024

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