Doclad
Bluelighter
- Joined
- Mar 17, 2015
- Messages
- 415
Hi.
I've received 3g of amphetamine sulfate that smells slightly of apple and is like a semi-solid paste. I know it is not pure, and I need your help.
So far I have always dissolved the paste in water to discard substances insoluble in water and then I have done a wash of pure acetone to discard solubles in acetone. The purity yields have never been higher than 80%, and of the remaining percentage EnergyControl has not been able to tell me what substance it was. They would call it "Byproducts of synthesis".
I've thought about an a/b extraction, but I usually find that this method leads to a significant loss of performance. High purity, yes, but little performance.... I use NaOH to basify, Toluene to extract, and HCl to salting, but I read somewhere that Amphetamine HCl isn't a good idea.
I was wondering if there is any solvent that is capable of dissolving Amphetamine Sulfate at boiling temperature and is almost insoluble when it is frozen, or if there is some alternative method so that you can obtain a very pure product with good performance.
I've at my disposal methanol, ethanol, hexane, toluene, dichloromethane and acetone.
Thanks
DocLad
I've received 3g of amphetamine sulfate that smells slightly of apple and is like a semi-solid paste. I know it is not pure, and I need your help.
So far I have always dissolved the paste in water to discard substances insoluble in water and then I have done a wash of pure acetone to discard solubles in acetone. The purity yields have never been higher than 80%, and of the remaining percentage EnergyControl has not been able to tell me what substance it was. They would call it "Byproducts of synthesis".
I've thought about an a/b extraction, but I usually find that this method leads to a significant loss of performance. High purity, yes, but little performance.... I use NaOH to basify, Toluene to extract, and HCl to salting, but I read somewhere that Amphetamine HCl isn't a good idea.
I was wondering if there is any solvent that is capable of dissolving Amphetamine Sulfate at boiling temperature and is almost insoluble when it is frozen, or if there is some alternative method so that you can obtain a very pure product with good performance.
I've at my disposal methanol, ethanol, hexane, toluene, dichloromethane and acetone.
Thanks
DocLad
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