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Thermophysical Data for Process Design
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Query

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DDB#	Name	CAS-RN	Formula
110	Methanol	67-56-1	CH₄O	Overview	Details
174	Water	7732-18-5	H₂O	Overview	Details
1050	Carbon dioxide	124-38-9	CO₂	Overview	Details
2187	Methyldiethanolamine (MDEA)	105-59-9	C₅H₁₃NO₂	Overview	Details
3865	Piperazine	110-85-0	C₄H₁₀N₂	Overview	Details

Search for mixtures containing this mixture as subsystem

Mixture Data

Number of available sets is shown

**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	244	238	n.a.	n.a.
174	Water		363	32	7
1050	Carbon dioxide			3	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Heats of Mixing (HE)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	130	21	n.a.	n.a.
174	Water		60	7	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Gas Solubilities (GLE)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	7	72	n.a.	n.a.
174	Water		403	n.a.	n.a.
1050	Carbon dioxide			5	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	82	n.a.	n.a.	n.a.
174	Water		n.a.	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	n.a.	n.a.	n.a.	n.a.
174	Water		37	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	80	n.a.	n.a.	n.a.
174	Water		n.a.	69	13
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				4

**(A)zeotropic Data (AZD)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	181	41	n.a.	n.a.
174	Water		29	11	2
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	29	2	n.a.	n.a.
174	Water		1	6	7
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	581	12	3	8
174	Water		26	145	21
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	4	13	n.a.	n.a.
174	Water		13	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	341	15	7	n.a.
174	Water		21	157	42
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	31	n.a.	7	n.a.
174	Water		70	38	10
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	160	39	n.a.	n.a.
174	Water		n.a.	6	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	26	n.a.	n.a.	n.a.
174	Water		2	1	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	49	13	n.a.	n.a.
174	Water		n.a.	4	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	175	68	n.a.	n.a.
174	Water		173	67	6
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Mixture Flash Points (MFLP)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	16	n.a.	n.a.	n.a.
174	Water		n.a.	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Gas Hydrate Data (GHD)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	n.a.	n.a.	n.a.	n.a.
174	Water		251	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Electrical Conductivities (ECND)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	5	n.a.	n.a.	n.a.
174	Water		8	n.a.	n.a.
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	29	5	n.a.	n.a.
174	Water		28	9	7
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	25	21	n.a.	n.a.
174	Water		103	18	6
1050	Carbon dioxide			n.a.	n.a.
2187	Methyldiethanolamine (MDEA)				n.a.

**Total**
DDB#	Name	174	1050	2187	3865	Piperazine
110	Methanol	2195	560	17	8
174	Water		1588	570	121
1050	Carbon dioxide			8	n.a.
2187	Methyldiethanolamine (MDEA)				4

Dortmund Data Bank Version: February 2024

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