What is the chemical composition of the anhydrous indicating material in Indicat

Question

What is the chemical composition of the anhydrous indicating material in Indicating Drierite? b. c. What is the chemical composition of the partially spent indicating material in Indicating Drierite d. What is the chemical composition of the fully spent indicating material in Indicating Drierite? e. What is the color of Drierite? f. What is the color of anhydrous Indicating Drierite? g. What is the color of partially spent Indicating Drierite? h. What is the color of completely spent Indicating Drierite?

Explanation / Answer

b and f. Calcium Sulfate and White

e. When active, Indicating DRIERITE is a distinct blue color. When exhausted, it turns pink. (Indicating DRIERITE is impregnated with cobalt chloride. )

c and d. Commercial DRIERITE is anhydrous calcium sulfate.  Du-Cal DRIERITE is anhydrous calcium sulfate impregnated with a small amount of calcium chloride to increase its absorption capacity.

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