250 grams of Ammonium Chloride and 500 grams of 37% Formaldehyde mixed in 1L round bottom flask and heated and temp maintained at 104 celcius. Distilled until no more water comes. That took around 6 hours. When water distilling over, flask removed from heating mantle and cooled in freezer below 10 celcius. All ammonium chloride crystals came out. Filtered ammonium chloride and transfered liquid anohter beaker. Then liquid concentrated to half volume and more ammonium chloride came out. Filtered again and liquid concentrated to half volume again. When liquid turned into orange color and produce a lot of fumes, liquid poured into anohter beaker and crystals came out immediately then turned into solid cake. Cooled below 10 celcius again. Then washed with 250 mL chloroform and filtered again. Filtered crystals boiled in 250 mL absolute methanol and all methylamine dissolved. Some ammonium chloride left behind. Filtered and ammonium chloride discarded. Filtered liquid cooled in freezer overnight and filtered again. Yield is 72 grams of pure methylamine.
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A lot better ones too.