SEDL / STP / STP1146-EB / STP20191S

Cold Temperature Properties of Pesticides Dissolved in Aromatic Hydrocarbon Fluids

King, EJ
Staff ChemistResearch Associate, Exxon Chemical CompanyExxon Chemical International Inc., BaytownMachelen, Texas

Verbelen, RA
Staff ChemistResearch Associate, Exxon Chemical CompanyExxon Chemical International Inc., BaytownMachelen, Texas

Pages: 9    Published: Jan 1993

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Abstract

A study was conducted to evaluate the cold temperature behavior of various pesticide solutions as the chemical composition of the solvents varied. Solutions of seven pesticides in solvents containing primarily: (1) C⁹ and (2) C¹⁰ alkylbenzene and (3) C^11–12 alkylnaphthalene, were prepared and observed for precipitation between ambient and -10 °C in 5 °C steps. Of the aromatic hydrocarbon fluids tested those containing C^11–12 alkylnaphthalene compounds were the best solvents for the pesticide active ingredients tested. Removal of naphthalene from the C¹⁰ alkylbenzene and C^11–12 alkylnaphthalene fluids did not adversely affect the solvency of the resultant pesticide solutions.