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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
1052	Oxygen	7782-44-7	O₂	Overview	Details
1056	Nitrogen	7727-37-9	N₂	Overview	Details
2886	Diethylenetriamine	111-40-0	C₄H₁₃N₃	Overview	Details
3865	Piperazine	110-85-0	C₄H₁₀N₂	Overview	Details

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Mixture Data

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	29	122	9	7
1052	Oxygen		80	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Heats of Mixing (HE)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	1	128	2	n.a.
1052	Oxygen		11	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Gas Solubilities (GLE)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	231	265	n.a.	n.a.
1052	Oxygen		n.a.	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	n.a.	n.a.	11	13
1052	Oxygen		n.a.	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	5	2	9	2
1052	Oxygen		36	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	1	1	n.a.	7
1052	Oxygen		2	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	n.a.	15	6	21
1052	Oxygen		9	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	1	2	n.a.	n.a.
1052	Oxygen		2	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	2	n.a.	13	42
1052	Oxygen		20	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	3	28	n.a.	10
1052	Oxygen		6	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	4	2	n.a.	n.a.
1052	Oxygen		6	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	n.a.	12	n.a.	6
1052	Oxygen		n.a.	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Mixture Flash Points (MFLP)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	n.a.	n.a.	1	n.a.
1052	Oxygen		n.a.	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Gas Hydrate Data (GHD)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	9	30	n.a.	n.a.
1052	Oxygen		n.a.	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	4	6	n.a.	7
1052	Oxygen		5	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	7	18	n.a.	6
1052	Oxygen		9	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

**Total**
DDB#	Name	1052	1056	2886	3865	Piperazine
174	Water	297	631	51	121
1052	Oxygen		186	n.a.	n.a.
1056	Nitrogen			n.a.	n.a.
2886	Diethylenetriamine				n.a.

Dortmund Data Bank Version: February 2024

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