ABSTRACT

This study deals with the solubility limits of organic liquids liable to be spilled at sea during shipwrecking or other incidents at sea. The effects under consideration are induced by both salinity and temperature. The former is described through use of the Setchenov relationship, and the latter by using the Van't Hoff equation. A coupling of both relationships led to an equation applicable to scarcely soluble liquids and expressed in a simplified form usable in decision-support systems as a result of the choice of the reference state when writing the thermodynamic relationships. The mathematical relation we found was tested on experimental data about four compounds, i.e. dimethyldisulfide (DMDS), methyl methacrylate (MMA), 1-butanol (1-But), and methyl ethyl ketone (MEK), chosen because of their wide use in the industry and frequent transport by sea. All of them were studied at four salinity values and five temperatures, and the mathematical relation under test proved to be quite satisfactory.

Compounds

#	Formula	Name
1	C2H6S2	2,3-dithiabutane
2	ClNa	sodium chloride
3	H2O	water
4	C5H8O2	methyl methacrylate
5	C4H10O	butan-1-ol
6	C4H8O	butanone

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 3	Molality, mol/kg - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Solvent: Molality, mol/kg - 2; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography	16
POMD	4 2 3	Molality, mol/kg - 4 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Solvent: Molality, mol/kg - 2; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Cloud point titration	16
POMD	5 2 3	Molality, mol/kg - 5 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Solvent: Molality, mol/kg - 2; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography	20
POMD	6 2 3	Molality, mol/kg - 6 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Solvent: Molality, mol/kg - 2; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography	20
POMD	1 3	Molality, mol/kg - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography	4
POMD	1 3	Molality, mol/kg - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Karl-Fischer titration	4
POMD	4 3	Molality, mol/kg - 4 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Cloud point titration	4
POMD	4 3	Molality, mol/kg - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Karl-Fischer titration	2
POMD	5 3	Molality, mol/kg - 5 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography	5
POMD	5 3	Molality, mol/kg - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Karl-Fischer titration	2
POMD	6 3	Molality, mol/kg - 6 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography	5
POMD	6 3	Molality, mol/kg - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Karl-Fischer titration	2

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Combined effects of salinity and temperature on the solubility of organic compounds

Benbouzid, H.[Hosna], Le Floch, S.[Stephane], Stephan, L.[Ludovic], Olier, R.[Rene], Privat, M.[Mireille]

ABSTRACT