Sciencemadness Discussion Board

Method for MeNH2 detection

FriendlyFinger - 17-12-2007 at 20:36

On the Hive, I remember a thread where someone suggested separating NH4Cl from MeNH2.HCL by attaching a tube to the flask containing the the mix, then droping NaOH into it and testing by holding a flame to the end of the tube to tell when MeNH2 comes through, meaning that NH4Cl is gone.

Is this completly dangerous. What's the chance of getting a flameback into the flask

bio2 - 18-12-2007 at 12:09

Put a check valve in the line same as is used in
an oxy-acetylene torch head.

Even an orifice would provide some back pressure which
would be safer than nothing.

Seems that the ammonia and methylamine gases would
mix rendering this a dubious procedure at best.

WizardX - 18-12-2007 at 16:56

Vogel 5th edition, page 1214 to 1217. Primary, secondary, tertiary amine tests.

You can download the complete Vogel 5th series from here

[Edited on 19-12-2007 by WizardX]