Large-Scale Methamphetamine Manufacture from P2P -
Used in the reduction procedure, the iron reacts with hydrochloric acid to produce hydrogen gas. Due to the requirement for good dispersion during the reduction, the use of a fine mesh powder is necessary, either 80 or 100 mesh. A coarser 60 mesh powder can be used, but may result in some problems if the stirring system is inadequate.
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