Cobalt chloride paper

Cobalt chloride paper

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Caption: Cobalt chloride paper. Image 2 of 2. Solution being pipetted on to a piece of cobalt chloride (CoCl2) paper. Cobalt chloride paper is used to indicate the presence of water - changing from blue to pink in a hydration reaction. For an image showing the paper before the reaction see A500/816.

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Keywords: after, analysing, aqueous, chemical, chemistry, cobalt chloride paper, colour reaction, demonstration, dihydrate, equipment, experiment, hexahydrate, hydration reaction, indicator, laboratory, liquid, pink, pipette, pipetting, reacting, school science, science education, sequence, series, solution, test, testing, water

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