Recent content by balls

Let me know exactly what you are separating, the solvent or matrix that it is in, and I'll give you my opinion.

Check a basic organic chemistry textbook if you don't believe me. Even if the contaminant has a higher melting point, the mixture will always display a melting point BELOW the melting point of the major constituent. It will melt below 118 if contaminated. A sharp melting point at 118 will...

Becasue your melting point will be below 118 if contaminated with eb

place the two powders in a mortar and pestle. Grind until particle size is uniform. Place ground powder in container (half filled). Shake 15 minutes. Glucose works fine. Substitute mortar and pestle with coffe grinder if you like.

Everything that is made through transformations such as those outlined by spidey, should be purified before use (critical if injecting). Column chromatography is the best idea. However, if the reaction is very clean, you could get away with a recrystallisation, followed by some sort of...

Goos stuff spidey. Can you post the references for those? I'm especially interested in MnO2 oxidation of the diol to give boldenone. Another conversion you can add to the list is methyl grignard addition to DHEA to yield methandriol (even though people don't like it). One step procedures from...