Colloidal Sulfur

Also found in: Medical.

Sulfur, Colloidal


a grayish yellow powder containing 70–90 percent finely dispersed elemental sulfur, 8–25 percent moisture, and a small amount of surface-active agents and filler. Colloidal sulfur is used in plant protection to combat fungal diseases, as well as harmful herbivorous mites and ticks.

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But as and when thiosulfate produces colloidal sulfur, the light path would be visible.