ABSTRACT

The solubility of 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine (atrazine) in methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, and ethyl acetate was measured at the temperature range from (283 to 343) K under atmospheric pressure. The solubilities of atrazine in these organic solvent increased with temperature and decreased with solvent polarity. A semiempirical equation was found to provide an accurate mathematical representation of the experimental data. Several models, including the Scatchard-Hildebr, UNIQUAC and NRTL models were applied to correlate the experimental solubility data. These models can successfully describe the solubility of atrazine in the selected organic solvents. Moreover, the dissolution enthalpy and entropy of atrazine were determined with van't Hoff plots.

Compounds

#	Formula	Name
1	C8H14ClN5	6-chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamine
2	CH4O	methanol
3	C2H6O	ethanol
4	C3H8O	propan-1-ol
5	C3H8O	propan-2-ol
6	C4H10O	butan-1-ol
7	C4H8O2	ethyl acetate

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	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	2 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric method	9
POMD	3 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric method	11
POMD	4 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric method	11
POMD	5 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric method	11
POMD	6 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric method	11
POMD	7 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric method	10

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

Measurement and Correlation of Solubility of 2-Chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine in Different Organic Solvents

Jia, D.[Dongmei], Li, Y.[Yuejin], Li, Y.[Yaping], Li, C.[Changhai]

ABSTRACT