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Cambridge ch2o gas detection tubes

Cambridge ch2o gas detection tubes

Add 100 mg of a solid or 0.1 mL of a liquid unknown, 200 mg of p-toleuenesulfonyl chloride, and 5 mL of 10% KOH solution to a clean test tube. Stopper the tube and shake it for several minutes. Remove the stopper and heat the mixture on a steam bath for 1 minute. Cool the solution and if it is not basic to pH paper, add additional KOH solution.

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