ABSTRACT

Methanol, unlike water, is miscible with 1-butanol in all proportions however not much work is available on binary mixtures of the two alcohols. Investigation of 1-butanol methanol binary system (the mixture) can be interesting also for its general and industrial applications. In the present study densities over the entire composition range of the mixture have been measured from 293.15 to 308.15 K which allowed determination of excess molar volume (VE) at four different temperatures. Structural information on the mixture has been obtained by adding sparingly soluble NaCl, KCl (borderline) and fairly soluble CdI2 (structure-breaker). Limited solubility of NaCl and KCl restricted the study only to their saturated solutions in the mixture. On the other hand using density data of CdI2 solutions of different molalities (from 4.0.10-3 to 8.0.10-2 mol.kg-1) in the mixture at the above temperatures, apparent molar (VO) and partial molal ( o m V ) volumes of CdI2 have been determined. The data also enabled determination of (a) a quantity related to the thermal expansion coefficient.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C4H10O	butan-1-ol
3	ClNa	sodium chloride
4	ClK	potassium chloride
5	CdI2	cadmium iodide (CdI2)

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	1 2	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	56
POMD	1 2 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Solvent: Mole fraction - 2; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	448
POMD	1 2 3	Mass density, kg/m3 ; Liquid	Solvent: Mole fraction - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Vibrating tube method	56
POMD	1 2 4	Mass density, kg/m3 ; Liquid	Solvent: Mole fraction - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Vibrating tube method	52
POMD	1 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	32
POMD	2 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	32
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Vibrating tube method	4
POMD	2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Vibrating tube method	4
POMD	2 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Vibrating tube method	4

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

Density and Excess Molar Volumes of 1-Butanol + Methanol + Electrolyte Systems in the Temperature Range (293.15 308.15) K

Khan, W. G., Rehman, H.-u.[Hafiz-ur], Siddique, S.[Saira], Ansari, M. S.

ABSTRACT