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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
284	N-Methyl-2-pyrrolidone	872-50-4	C₅H₉NO	Overview	Details
551	1,2-Dichlorotetrafluoroethane [R114]	76-14-2	C₂Cl₂F₄	Overview	Details

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Mixture Data

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	30	n.a.
284	N-Methyl-2-pyrrolidone		5

**Heats of Mixing (HE)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	16	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Gas Solubilities (GLE)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	1	5
284	N-Methyl-2-pyrrolidone		6

**Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	13	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	n.a.	2
284	N-Methyl-2-pyrrolidone		n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	21	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	27	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	5	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	253	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	34	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	5	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	12	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	10	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	4	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	3	n.a.
284	N-Methyl-2-pyrrolidone		n.a.

**Total**
DDB#	Name	284	551	1,2-Dichlorotetrafluoroethane [R114]
174	Water	434	7
284	N-Methyl-2-pyrrolidone		11

Dortmund Data Bank Version: February 2024

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