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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
1072	1,1,1-Trifluoroethane [R143a]	420-46-2	C₂H₃F₃	Overview	Details
1224	Pentafluoroethane [R125]	354-33-6	C₂HF₅	Overview	Details
2393	1,1,1,2-Tetrafluoroethane [R134a]	811-97-2	C₂H₂F₄	Overview	Details
43722	Mixture of pentaerythritol ester lubricants			Overview	Details

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Mixture Data

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	68	35	n.a.
1224	Pentafluoroethane [R125]		92	n.a.
2393	1,1,1,2-Tetrafluoroethane [R134a]			n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	23	27	n.a.
1224	Pentafluoroethane [R125]		47	n.a.
2393	1,1,1,2-Tetrafluoroethane [R134a]			n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	1	6	n.a.
1224	Pentafluoroethane [R125]		12	n.a.
2393	1,1,1,2-Tetrafluoroethane [R134a]			n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	7	1	n.a.
1224	Pentafluoroethane [R125]		11	n.a.
2393	1,1,1,2-Tetrafluoroethane [R134a]			n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	18	n.a.	16
1224	Pentafluoroethane [R125]		23	16
2393	1,1,1,2-Tetrafluoroethane [R134a]			20

**Mixture Surface Tensions (MSFT)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	1	7	n.a.
1224	Pentafluoroethane [R125]		1	n.a.
2393	1,1,1,2-Tetrafluoroethane [R134a]			n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	54	n.a.	n.a.
1224	Pentafluoroethane [R125]		24	n.a.
2393	1,1,1,2-Tetrafluoroethane [R134a]			n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	2	n.a.	n.a.
1224	Pentafluoroethane [R125]		22	n.a.
2393	1,1,1,2-Tetrafluoroethane [R134a]			n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	73	28	16
1224	Pentafluoroethane [R125]		72	16
2393	1,1,1,2-Tetrafluoroethane [R134a]			19

**Diffusion Coefficients (DIF)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	n.a.	n.a.	n.a.
1224	Pentafluoroethane [R125]		n.a.	1
2393	1,1,1,2-Tetrafluoroethane [R134a]			1

**Further Thermodynamic Properties (X)**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	8	n.a.	n.a.
1224	Pentafluoroethane [R125]		n.a.	5
2393	1,1,1,2-Tetrafluoroethane [R134a]			9

**Total**
DDB#	Name	1224	2393	43722	Mixture of pentaerythritol ester lubricants
1072	1,1,1-Trifluoroethane [R143a]	255	104	32
1224	Pentafluoroethane [R125]		304	38
2393	1,1,1,2-Tetrafluoroethane [R134a]			49

Dortmund Data Bank Version: February 2024

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