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Silica Gel Orange : "Silica Gel are impregnated with an organic indicator", which is rates as completely safe. When free from moisture the particles are dark orange. As they are put to use, the particles take up moisture, Silica Gel gradually turns Orange-Yellow & then to green and gives a ready indication that it has done or its saturated.
Specifications:
-Granules and beads available
Types, uses, formulations and specifications.
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