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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
1158	Difluoromethane [R32]	75-10-5	CH₂F₂	Overview	Details
1224	Pentafluoroethane [R125]	354-33-6	C₂HF₅	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	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	103	n.a.
1224	Pentafluoroethane [R125]		n.a.

**Heats of Mixing (HE)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	1	n.a.
1224	Pentafluoroethane [R125]		n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	53	n.a.
1224	Pentafluoroethane [R125]		n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	11	n.a.
1224	Pentafluoroethane [R125]		n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	10	n.a.
1224	Pentafluoroethane [R125]		n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	39	16
1224	Pentafluoroethane [R125]		16

**Mixture Surface Tensions (MSFT)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	8	n.a.
1224	Pentafluoroethane [R125]		n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	13	n.a.
1224	Pentafluoroethane [R125]		n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	55	n.a.
1224	Pentafluoroethane [R125]		n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	10	n.a.
1224	Pentafluoroethane [R125]		n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	153	17
1224	Pentafluoroethane [R125]		16

**Diffusion Coefficients (DIF)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	n.a.	1
1224	Pentafluoroethane [R125]		1

**Further Thermodynamic Properties (X)**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	3	10
1224	Pentafluoroethane [R125]		5

**Total**
DDB#	Name	1224	43722	Mixture of pentaerythritol ester lubricants
1158	Difluoromethane [R32]	459	44
1224	Pentafluoroethane [R125]		38

Dortmund Data Bank Version: February 2024

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