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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
546	Monoethanolamine	141-43-5	C₂H₇NO	Overview	Details
2189	2-Amino-2-methyl-1-propanol (AMP)	124-68-5	C₄H₁₁NO	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	546	2189	3865	Piperazine
174	Water	44	14	7
546	Monoethanolamine		n.a.	4
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Heats of Mixing (HE)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	9	5	n.a.
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	50	41	13
546	Monoethanolamine		11	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			4

**(A)zeotropic Data (AZD)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	31	11	2
546	Monoethanolamine		n.a.	4
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	11	3	7
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	79	65	21
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	138	32	42
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			5

**Mixture Surface Tensions (MSFT)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	25	9	10
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	12	n.a.	n.a.
546	Monoethanolamine		7	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	n.a.	4	n.a.
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	29	25	6
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Mixture Flash Points (MFLP)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	1	n.a.	n.a.
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Electrical Conductivities (ECND)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	3	n.a.	n.a.
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	6	n.a.	7
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	546	2189	3865	Piperazine
174	Water	22	6	6
546	Monoethanolamine		n.a.	n.a.
2189	2-Amino-2-methyl-1-propanol (AMP)			n.a.

**Total**
DDB#	Name	546	2189	3865	Piperazine
174	Water	460	215	121
546	Monoethanolamine		18	8
2189	2-Amino-2-methyl-1-propanol (AMP)			9

Dortmund Data Bank Version: February 2024

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