Hello @GhostChemist
I have 5g p2np batch,
I'm at step 8,
I add 80ml of ipa to wash it.
I locked vacuum at 600mmHg, 800 millibars, I have gauge on vacuum pump inlet.
My distillation setup is 3 necked flask, vertical alihn reflux condesner as fraction column, horizontal grahm condeser as cooling. I can confirm by flame I get IPA.
I get liquid with milky aqueous layer and yellow top which isn't possible to lower PH with H2SO4. I think I over distill it.
1. IPA evaporates at 69°, it goes for 8h and doesn't stop, what may be indicator when it is done?
2. What would happen if I don't wash aqueous layer with IPA and just proceed with dropwise addition of H2SO4?
I have 5g p2np batch,
I'm at step 8,
| 8. The IPA from step 7 extract is evaporated on vacuum to an amphetamine free base oil and combined with free base from step 6. |
I add 80ml of ipa to wash it.
I locked vacuum at 600mmHg, 800 millibars, I have gauge on vacuum pump inlet.
My distillation setup is 3 necked flask, vertical alihn reflux condesner as fraction column, horizontal grahm condeser as cooling. I can confirm by flame I get IPA.
I get liquid with milky aqueous layer and yellow top which isn't possible to lower PH with H2SO4. I think I over distill it.
1. IPA evaporates at 69°, it goes for 8h and doesn't stop, what may be indicator when it is done?
2. What would happen if I don't wash aqueous layer with IPA and just proceed with dropwise addition of H2SO4?
- By GhostChemist
General procedure for this synthesis is separate IPA with amine and distilled off the IPA for concentation of amine