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Well, ask me here.
Is it ok to write in Russian ? Maybe, now i am first member from russia, but we have nice (and very old) forum: https://hyperlab.info/
I think an intelligent Chinese, Polish, Russian, Peruvian, Columbian etc. (places where packages are extra suspect) would do well to have an intermediate assistant in a less suspect country to forward the package. Another thought is to EXACTLY copy the packaging of Temu or another large legitimate international vender, to the highest level even the origin location if possible and getting someone to integrate it into the same freight. Even copying an actual item and item #
help needed!
when mixing these elements an explosion occurred (4mmc)
4'-Methylpropiophenone - 100g
Benzene - 400 ml
Bromine (Br2) - 100g
then everything in the house was washed and washed, the splashed areas were painted, active ventilation continued for more than 10 days, but the pain in the eyes did not stop completely...
Now I am repainting all the walls and ceilings, changing the flooring!
Do I need to get any air filters?
Plus any other information please!!!!!!!!
Hello, sounds strange. Have you added 100g liquid bromine in the solution instantly? The reaction shouldn't explode. In addition, there is no H2O2. Are you sure that you've used exactly these reagents?
Yes, instantly( after 10 minutes of heating, the reflux condenser jumped off the flask, and a thick stream of drops and gas hit the ceiling
Bromine is added from the drip funnel to the solution dropwise, when the first Br2 portion is discolored, in order to a smooth reaction course. If the solution begins to boil, the addition of bromine have to be stopped until the solution is cooled to 30-35 ºC.
Hello, sounds strange. Have you added 100g liquid bromine in the solution instantly? The reaction shouldn't explode. In addition, there is no H2O2. Are you sure that you've used exactly these reagents?
It was fatal mistake, dude. Please, read tutorials carefully before synthesis.
Can I assemble a recirculator with a carbon or HEPA filter? or ionizer?
what to do if steam escapes through the joint between the reflux condenser and the flask? The dimensions are the same nothing seems to come out through the gas outlet hose
It's good practice, essential actually, to use grease on the joints. Food-grade silicone grease is what I use. It costs practically nothing.
I also mention that if you are doing a reflux, its important there is an outlet for the pressure that builds up, otherwise bad things (pressure explosions) can occur.
I know very little but I do know this. Hit me up if more questions.
can I use Vaseline?
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1.2D: Greasing Joints
Ground glass joints are manufactured to fit quite well with one another, and yet they are not perfectly airtight. In some situations (e.g. when using reduced pressure inside an apparatus), grease …chem.libretexts.org
Yes, I think Vaseline would be fine.
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4-MMC (mephedrone) synthesis. Complete video tutorial.
This video represent a simple synthesis way of 4-MMC (mephedrone) in a small scale from 4'-methylpropiophenone. There is total synthesis video manual which explain everything and gives opportunity to make 4-MMC to every beginner of organic synthesis. Equipment and glassware: Round bottom...bbgate.com
please tell me, in the step From 9:03 to 11:33, I washed 3 times with 200 ml of 5% solution, now can I proceed to what is written in blue text?
Well, ask me here.
When finishing A-oil what’s the best solvent to use?
1. acetone
2. DCM
3. Petroleum ether
4. D Ether
5 IPA
6 methanol
7. DI water or distilled water… can it just be mixed with water adding acid solution till the water tests ph7. Separate and evaporate water to get your finished product?
Do you dilute it 1/1?
Magnetic stirrer or Glass rod?
What’s the best PH?
Goal is to obtain the cleanest, highest purity and nasal friendly amph sulfate for myself. Not for re sell purpose. I do not have access to be able to do vacuum distillation on the oil so if there’s another process to purify it I’d be interested in knowing.
Any advice is most appreciated!
Why don't you read a dedicated topic? There are answers to your questions...
I have searched but haven’t found all the answers I needed. Seen lots of mixed opinions. None gave me confidence enough to move forward. Obviously I haven’t looked in the correct way.
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