ABSTRACT

Apparent molar volumes and viscosities (?) of NaCl, NH4Cl, CuCl2, CuSO4, and MgSO4 in water and water + urea solutions as a function of concentration are reported at (308.15, 313.15, and 323.15) K. The apparent molar volumes at infinite dilution of these electrolytes were determined by extrapolating apparent molar volume values to zero concentration, which is practically equal to the partial molar volume. Viscosity coefficients (A and B) for these systems were also determined for the Jones-Dole equation. Apparent molar volumes and viscosities of these electrolytes were found to be higher in water + urea solutions than those inwater solutions. All these electrolytes, except NH4Cl, exhibit structure making behavior in water and water + urea solutions. Ammonium chloride showed structure breaking properties in water and 1 mol.kg-1 water + urea solutions. In 5 mol.kg-1 urea solution ammonium chloride showed structure making behavior at the temperature range studied. Electrolytes in water + urea solutions are seen to be more structured than those in water solutions. The properties of these electrolytes in water and water + urea solution systems are discussed in terms of the charge, size, and hydrogen bonding effect.

Compounds

#	Formula	Name
1	ClNa	sodium chloride
2	H2O	water
3	ClH4N	ammonium chloride (NH4Cl)
4	Cl2Cu	copper chloride
5	CuO4S	copper sulfate
6	MgO4S	magnesium sulfate
7	CH4N2O	urea

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	15
POMD	1 2	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	SAME:UFactor:2	15
POMD	2 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	15
POMD	2 3	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	SAME:UFactor:2	15
POMD	4 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	15
POMD	4 2	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	SAME:UFactor:2	15
POMD	2 5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	15
POMD	2 5	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	SAME:UFactor:2	15
POMD	6 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 6; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	15
POMD	6 2	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 6; Liquid	Pressure, kPa; Liquid	Liquid	SAME:UFactor:2	15
POMD	7 1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 7; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	30
POMD	7 1 2	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 7; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	SAME:UFactor:2	30
POMD	7 2 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 7; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	30
POMD	7 2 3	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 7; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	SAME:UFactor:2	30
POMD	7 4 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 7; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	30
POMD	7 4 2	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 7; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	SAME:UFactor:2	30
POMD	7 2 5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 7; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	30
POMD	7 2 5	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 7; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	SAME:UFactor:2	30
POMD	7 6 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 7; Liquid Molality, mol/kg - 6; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:4	30
POMD	7 6 2	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 7; Liquid Molality, mol/kg - 6; Liquid	Pressure, kPa; Liquid	Liquid	Calculated with densities of this investigation	30

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Temperature and Concentration Dependence of Apparent Molar Volumes and Viscosities of NaCl, NH4Cl, CuCl2, CuSO4, and MgSO4 in Pure Water and Water + Urea Mixtures

Motin, M. A.

ABSTRACT