Technical Aldrin (85% minimum Purity). Dry Ice. "Hi-Sil" 101. "Santomerse" D. Note: Other wetting agents may be used but, before doing so, they must be known to be non-phytotoxic to the seed to be treated. Reduce the technical aldrin to chunks of about 2 in. diameter or less. Add the "Hi-Sil" 101 to the blender and, while blender is operating, add the crushed aldrin to the blender as fast as possible without stalling the motor. Blend until the majority of the aldrin is reduced to about 0.25 in. pieces or smaller. This step will usually require 15 to 20 minutes and its completion is readily apparent from the reduction of noise in the blender. Add the "Santomerse" D to the blender and blend for an additional 5 minutes. The amount of wetting agent used is held to a minimum (note more than 1%) because it replaces part of the necessary sorptive carrier. Gross grind the preblended powder, add pulverized dry ice, and fine grind the mixture through a Mikro-Pulverizer or the equivale
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