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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
174	Water	7732-18-5	H₂O	Overview	Details
2018	Sulfur trioxide	7446-11-9	O₃S	Overview	Details
2421	Phosphorus pentoxide	1314-56-3	O₅P₂	Overview	Details
6325	Ammonium sulfate	7783-20-2	H₈N₂O₄S	Overview	Details
1003169	Diammonium hydrogen sulfate dihydrogen phosphate		(NH₄)₂H₃(SO₄)(PO₄)	Overview	Details

Search for mixtures containing this mixture as subsystem

Mixture Data

Number of available sets is shown

**Vapor-Liquid Equilibria (VLE)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	40	13	n.a.	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Heats of Mixing (HE)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	1	n.a.	n.a.	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Heat Capacities of Mixtures, Excess Heat Capacities (CPE)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	2	4	n.a.	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**(A)zeotropic Data (AZD)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	9	n.a.	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Solid-Liquid Equilibria (SLE)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	15	7	2	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Vapor-Liquid Equilibria of Electrolyte Systems (ELE)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	n.a.	20	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	6	15	40	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Salt Solubilities (ESLE)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	n.a.	184	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Critical Data of Mixtures (CRI)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	1	n.a.	1	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Mixture Viscosities (VIS)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	14	23	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Mixture Surface Tensions (MSFT)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	n.a.	10	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Mixture Speeds of Sound (MSOS)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	n.a.	9	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Mixture Thermal Conductivities (MTCN)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	n.a.	8	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Mixture P-v-T Data (MPVT)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	n.a.	1	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Electrical Conductivities (ECND)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	n.a.	15	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Diffusion Coefficients (DIF)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	n.a.	1	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	n.a.	1	15	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

**Total**
DDB#	Name	2018	2421	6325	1003169	Diammonium hydrogen sulfate dihydrogen phosphate
174	Water	65	63	329	n.a.
2018	Sulfur trioxide		n.a.	n.a.	n.a.
2421	Phosphorus pentoxide			n.a.	n.a.
6325	Ammonium sulfate				n.a.

Dortmund Data Bank Version: February 2024

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