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Comment · Tue, February 10, 2015 · Ceretropic

Been playing with a melting point apparatus, so far I've been testing and calibrating a lot, but I've tested caffeine, aniracetam, and tianeptine.

Original post in this thread

meeeeoooowy · 13 points

When it comes to melting points and purity you want it to melt in a very small window right at the compounds melting point.

If it melts lower and has a wider window you have impurities.

If it melts higher, you are looking at an entirely different compound.

I haven't really been recording my results yet as I've been calibrating, practicing and triple checking everything. But the general results are the Caffeine was melting a little early (enough that I will be trying a different brand), the aniracetam was pretty much right on the money (New Star Nootropics and Health Supplement Wholesalers), but the tianeptine was without a doubt melting above it's supposed melting point.

Tianeptine's (CAS 66981-73-5) melting point is 129º - 131º. When I tested it looks like it started around 175º and finished closer to 200º.

While my tianeptine hasn't degraded into that hard sticky cement, I'm wondering if the heat that I was applying could have accelerated this change which could explain the differing melting point?

I think next time I'm going to take photos throughout the process to see if…

What they were answering

meeeeoooowy · 1 points

Thanks, good to know. I'll run that one again as I was mostly just getting a rough estimate after I knew it was at least 20 degrees higher than it should be.

u/MisterYouAreSoDumb · Ceretropic

Yeah, we have label printing in house now. So I can make changes a lot easier. Before we had to redo whole runs of thousands of labels if I messed something up. Now I can just fix in Illustrator and reprint.

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