The stability of cyhexatin emulsifiable concentrate formulated by using phenol as a cosolvent
1988
Kim, Y.J. | Kim, J.E. | Hong, J.U. (Kyungbook National Univ., Taegu (Korea R.). Dept. of Agriculture Chemistry) | Kim, J.H. (Taegu Oriental Medical Univ., Taegu (Korea R.). Dept. of Environmental Health)
This study was conducted to investigate the possibility of emulsifiable concentrate(EC) development and the stability and acaricidal activity of the formulated emulsifiable concentrate. Cyhexatin could be formulated into 9% EC by using phenol as a cosolvent and E-ASC as an emulsifier. Cyhexatin EC was stable in 0.5% moisture content, pH 4.5 and 7, but it was unstable in more than 1% moisture content and the alkaline condition of pH 9.5. The emulsion of cyhexatin EC was unstable in hard water of pH 10. The acaricidal activity of 500 fold of 9% EC was shown to be as good as that of 1500 fold
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