Methylamine hydrochloride synthesis. Large scale.

[handle]

A somewhat simpler option to produce methylamine would be to reduce Nitromethane CH3NO2 to Methylamine CH3NH2 via Al/Hg amalgam.

CH3NO2 + H2 ---> CH3NH2+ H2O

 

[Osmosis Vanderwaal]

I feel like there is a reason, because using model airplane fuel to make methylamine in vitro is a common route.. either it degrades quickly or...it sounds like an energetic reaction

 

[handle]

Hot, Heavy and Hard! My brain hurts now. I was going to just catch all the Gas that escapes from the rxn in some HCl and dump the rest. Or use the insitu without delay.

 

[Osmosis Vanderwaal]

Here's the reason it reduces it to the alcohol ( over reduces it, that is what Rhodium is saying by " the predominant reaction....." https://chemistry.mdma.ch/hiveboard/chemistrydiscourse/000460257.html

 

[Kylemalone1297]

Can u wash the methylamine with ethanol instead of chloroform? I have so many chemicals this is getting to be a small chem store.

 

[NovicechemistEU]

Tomorrow I will do an experiment.
9.34 mol **500 grams of ammonium chloride (NH₄Cl)
formaldehyde 37% (CH₂O) 12.7 mol approx. 1030 grams
Dcm and methanol

 

[NovicechemistEU]

I made the synthesis with a last minute decision in 3 lt capacity. The yield was good, I got 270 grams.
Ammonium chloride (NH₄Cl) 749 Gr
formaldehit %37 (CH₂O) 1546 Gr

 

[NovicechemistEU]

The product of tonight's synthesis is methylamine HCl.
Tomorrow I'll make a different synthesis, 750 +1500 gr
.

 

[NovicechemistEU]

My latest synthesis is methylamine HCl. It looks better this time, the next one will look better
I can't thank the forum enough.
The next synthesis is coming soon
1000+2000 Gr

 

[NovicechemistEU]

Hi Bb team, I'm going to synthesize methylamine this weekend I'll make a slightly bigger batch. Ammonium chloride (NH₄Cl) 1250 g
formaldehyde 37% (CH₂O) 2500 g (with 15% methanol)
I'll write the results

 

[Osmosis Vanderwaal]

Have you done a confirmatory test that its in fact methylammonium chloride and not ammonium chloride?