Hello sir, is the top cover of the condenser opened or closed when refluxing for 10-12 hours, and is ice water used to cool the condenser, because if you just heat it without a condenser for 12 hours the solution will evaporate and dry, please explain.
Sorry friend, is there a possibility of burning or exploding if exposed to outside air for too long? Sorry, I bought 2kg and 1kg is still in its original plastic. I'm afraid of what will happen because I don't have much information about this Nabh4.
hello, everyone. Can someone provide a link for making ephedrine, pseudoephedrine from d-l alananine, metylananine, yesterday someone posted it but I can't find it, please help.