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Thermophysical Data for Process Design
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DDB#	Name	CAS-RN	Formula
174	Water	7732-18-5	H₂O	Overview	Details
1072	1,1,1-Trifluoroethane [R143a]	420-46-2	C₂H₃F₃	Overview	Details
1158	Difluoromethane [R32]	75-10-5	CH₂F₂	Overview	Details
1224	Pentafluoroethane [R125]	354-33-6	C₂HF₅	Overview	Details
2393	1,1,1,2-Tetrafluoroethane [R134a]	811-97-2	C₂H₂F₄	Overview	Details

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Mixture Data

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	10	3	8
1072	1,1,1-Trifluoroethane [R143a]		32	68	35
1158	Difluoromethane [R32]			103	136
1224	Pentafluoroethane [R125]				92

**Heats of Mixing (HE)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	n.a.
1072	1,1,1-Trifluoroethane [R143a]		n.a.	n.a.	n.a.
1158	Difluoromethane [R32]			1	n.a.
1224	Pentafluoroethane [R125]				n.a.

**Gas Solubilities (GLE)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	11	5	11
1072	1,1,1-Trifluoroethane [R143a]		n.a.	n.a.	n.a.
1158	Difluoromethane [R32]			n.a.	n.a.
1224	Pentafluoroethane [R125]				n.a.

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	2
1072	1,1,1-Trifluoroethane [R143a]		n.a.	n.a.	n.a.
1158	Difluoromethane [R32]			n.a.	n.a.
1224	Pentafluoroethane [R125]				n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	n.a.
1072	1,1,1-Trifluoroethane [R143a]		19	23	27
1158	Difluoromethane [R32]			53	82
1224	Pentafluoroethane [R125]				47

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	n.a.
1072	1,1,1-Trifluoroethane [R143a]		n.a.	1	6
1158	Difluoromethane [R32]			11	10
1224	Pentafluoroethane [R125]				12

**Critical Data of Mixtures (CRI)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	5	2	5	5
1072	1,1,1-Trifluoroethane [R143a]		n.a.	7	1
1158	Difluoromethane [R32]			10	11
1224	Pentafluoroethane [R125]				11

**Mixture Viscosities (VIS)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	n.a.
1072	1,1,1-Trifluoroethane [R143a]		n.a.	18	n.a.
1158	Difluoromethane [R32]			39	23
1224	Pentafluoroethane [R125]				23

**Mixture Surface Tensions (MSFT)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	n.a.
1072	1,1,1-Trifluoroethane [R143a]		1	1	7
1158	Difluoromethane [R32]			8	9
1224	Pentafluoroethane [R125]				1

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	n.a.
1072	1,1,1-Trifluoroethane [R143a]		n.a.	54	n.a.
1158	Difluoromethane [R32]			13	18
1224	Pentafluoroethane [R125]				24

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	n.a.
1072	1,1,1-Trifluoroethane [R143a]		n.a.	2	n.a.
1158	Difluoromethane [R32]			55	30
1224	Pentafluoroethane [R125]				22

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	n.a.
1072	1,1,1-Trifluoroethane [R143a]		n.a.	n.a.	n.a.
1158	Difluoromethane [R32]			10	n.a.
1224	Pentafluoroethane [R125]				n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	n.a.	n.a.	n.a.	n.a.
1072	1,1,1-Trifluoroethane [R143a]		10	73	28
1158	Difluoromethane [R32]			153	94
1224	Pentafluoroethane [R125]				72

**Gas Hydrate Data (GHD)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	5	8	8	26
1072	1,1,1-Trifluoroethane [R143a]		n.a.	n.a.	n.a.
1158	Difluoromethane [R32]			n.a.	n.a.
1224	Pentafluoroethane [R125]				n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	1	n.a.	1	2
1072	1,1,1-Trifluoroethane [R143a]		n.a.	8	n.a.
1158	Difluoromethane [R32]			3	n.a.
1224	Pentafluoroethane [R125]				n.a.

**Total**
DDB#	Name	1072	1158	1224	2393	1,1,1,2-Tetrafluoroethane [R134a]
174	Water	11	31	22	54
1072	1,1,1-Trifluoroethane [R143a]		62	255	104
1158	Difluoromethane [R32]			459	413
1224	Pentafluoroethane [R125]				304

Dortmund Data Bank Version: February 2024

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