Simple Smoke

Michael D. Fain

 

Limited amounts of non-toxic smoke can be easily and inexpensively produced by heating small quantities of ammonium chloride (NH4, CL, sal ammoniac) in a heater cone or in an aluminum pan on a standard hot plate. Ammonium chloride can be found at most chemical supply stores for approximately $3.00 per pound. A heater cone is an inexpensive ($4.00) porcelain cone with a heating element wrapped around it. The cone holds a small quantity of powder (1 oz.) and has the advantage of heating up and cooling off more rapidly than a hot plate. A hot plate with a heating control allows more effective control over the duration of the smoke.

The white smoke produced rises slowly and can linger for 10 to 15 minutes in a space ...

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