Effect of storage temperature on the stability of chemical and physical properties of profenofos insecticide formulation [EC]

Profenofos insecticide was subjected to different storage conditions at the temperatures 54°C for 14 days, zero °C for 7 days according to FAO specifications [1998] and, in sunny place and in dark place for 360 days according to Egyptian conditions. Chemical stability of profenofos was stable if stored either at 54 °C or zero °C for 14 and 7 days, respectively conformed with Food and Agriculture Organization [FAO] specifications during periods of storage and more degradated in sunny place than in dark place. Physical properties [pH range, Emulsion stability and re-emulsification] became conformity with FAO specification