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Thermophysical Data for Process Design
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DDB#	Name	CAS-RN	Formula
148	Sulfuric acid	7664-93-9	H₂O₄S	Overview	Details
174	Water	7732-18-5	H₂O	Overview	Details
430	Methyl isopropyl ketone	563-80-4	C₅H₁₀O	Overview	Details
18990	Trihexyl tetradecyl phosphonium chloride	258864-54-9	C₃₂H₆₈ClP	Overview	Details

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Mixture Data

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**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	150	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Heats of Mixing (HE)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	3	n.a.	n.a.
174	Water		4	n.a.
430	Methyl isopropyl ketone			n.a.

**Activity Coefficients at Infinite Dilution (Pure Solvents) (ACT)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	n.a.	n.a.	n.a.
174	Water		7	6
430	Methyl isopropyl ketone			n.a.

**Liquid-Liquid Equilibria (Miscibility Gaps) (LLE)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	n.a.	n.a.	n.a.
174	Water		41	8
430	Methyl isopropyl ketone			n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	22	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	41	n.a.	n.a.
174	Water		1	n.a.
430	Methyl isopropyl ketone			n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	42	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Vapor-Liquid Equilibria of Electrolyte Systems (ELE)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	64	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	120	n.a.	n.a.
174	Water		7	n.a.
430	Methyl isopropyl ketone			n.a.

**Salt Solubilities (ESLE)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	8	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	1	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	50	n.a.	n.a.
174	Water		3	1
430	Methyl isopropyl ketone			n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	26	n.a.	n.a.
174	Water		n.a.	2
430	Methyl isopropyl ketone			n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	1	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	7	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Mixture Dielectric Constants (MDEC)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	3	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	3	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Electrical Conductivities (ECND)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	26	n.a.	n.a.
174	Water		n.a.	n.a.
430	Methyl isopropyl ketone			n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	n.a.	n.a.	n.a.
174	Water		3	n.a.
430	Methyl isopropyl ketone			n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	50	n.a.	n.a.
174	Water		1	1
430	Methyl isopropyl ketone			n.a.

**Total**
DDB#	Name	174	430	18990	Trihexyl tetradecyl phosphonium chloride
148	Sulfuric acid	617	n.a.	n.a.
174	Water		67	18
430	Methyl isopropyl ketone			n.a.

Dortmund Data Bank Version: February 2024

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