The W.A. Hammond Drierite indicating drierite uses cobalt chroride to expose moisture residue by changing the color of the dessicant from blue to red.
The W.A. Hammond DRIERITE indicating DRIERITE appears blue when dry and changes to pink when it absorbs moisture. This color change is pronounced and clearly visible. This procedure makes it valuable when it is necessary to know with certainty that dryness is being maintained and to signal when the drying agent should be replaced. It has the same efficiency as regular DRIERITE, and it contains 98% CaS04 and 2% CoCl2.
Product type: Indicating DRIERITE
Capacity: 1 pound
Made from anhydrous calcium sulfate with cobalt chloride
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