Kings Chemistry Survival Guide by Letliiard J.B.

By Letliiard J.B.

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Note: the sulfuric acid mixture left over, can be recycled, but it should be boiled to drive-off some of the water. ) of fresh battery acid. Thereafter, boil this mixture at 100 Celsius for about 6 to 8 hours, and allow the mixture to distill during this time. After 6 to 8 hours, remove the heat source, and then recover the diethyl ether from the receiver flask or receiver container. Then re-distill this diethyl ether using a standard fractional distillation apparatus or equivalent in the same manner as in method 1 (distill at 40 Celsius).

Also, observe the chlorine generator utilizing an electrochemical method. The electrochemical method is sufficient to produce laboratory quantities of gas (see the following illustration). ) of tap water. Thereafter, stir the entire mixture for about 30 minutes to dissolve all solids. ) of calcium hypochlorite, bleaching powder (65% available chlorine). ) of tap water. ) of cold tap water. Once your chlorine generator is setup (if using the hydrochloric acid drip method), begin dripping the hydrochloric acid solution, onto the oxidizer contained in the reaction flask.

The warm water decomposes the bleaching powder into hypochlorous acid and calcium hydroxide. This mixture is then filtered, and the resulting hypochlorous acid is then reacted with a solution of potassium or sodium iodide. After the reaction, the precipitated iodine is then recovered by filtration, washed, dried, and then sublimed to yield high purity iodine. Hazards: Calcium hypochlorite is a powerful oxidizer, and should never be mixed with concentrated sulfuric acid; explosions will result. Do not mix hypochlorous acid with ammonia or ammonium salts—as the high explosive nitrogen triiodide is formed.

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