The Vigreaux indentations would cool the vapor before it gets to the receiving flask and would likely get gummed up, impeding the process.
I wrapped the claisen in foil, ran hot water through the condenser and it didn't get gummed up too bad but I had a shitty heating mantle and really shitty, unwinterized oil. There were likely a lot of problems with my setup. I'm just going to save up a little while for a Kugelrohr instead of trying to improve it.
The claisen adapter seems to be a lot cheaper than those short path heads and with the liebig on there as an extension it can easily be used with 5L boiling flask.
I highly doubt that oxidation causes a reddish discoloration. If that were the case it wouldn't happen under vacuum. If it removes 99.999+% of O2 molecules then oxidation will be reduced by 99.999+ %. I could be wrong , but I believe the isomerization is caused by too much heat, and stuff is just being carried over leading to discoloration.A more experienced member can correct me if I am wrong but I believe it is because a vacuum can never be perfect, even if you are down to 10 micron there is still some oxidizing agents within the reduced atmosphere inside the apparatus that can cause isomerization or reddening of your distillate.
Update: the terp sauce wizard finally responded, and confirmed my suspicions that the nitrogen regulator is used to add nitrogen directly into the boiling flask, not a nitrogen cabinet. Now, the mystery as to why on earth you add nitrogen to the boiling flask is still prevalent, does anyone have any clue?
I highly doubt that oxidation causes a reddish discoloration. If that were the case it wouldn't happen under vacuum. If it removes 99.999+% of O2 molecules then oxidation will be reduced by 99.999+ %. I could be wrong , but I believe the isomerization is caused by too much heat, and stuff is just being carried over leading to discoloration.
Update: the terp sauce wizard finally responded, and confirmed my suspicions that the nitrogen regulator is used to add nitrogen directly into the boiling flask, not a nitrogen cabinet. Now, the mystery as to why on earth you add nitrogen to the boiling flask is still prevalent, does anyone have any clue? The person who is helping me makes some very high quality distillate, but they only selectively answer my questions and are generally not going to help me get specifics I dont think, so any guidance would be much appreciated as I am no chemist but am doing chemistry and would like to do so safely / correctly.
I offer classes teaching people to make clear raw with a short path distillation setup and heidolph brand rotary evaporator.. If interested please PM ME>