Dvap said:
The sort of solution required here, if used, would need to be perhaps 0.01N, which is relatively tame (compared to 1N+), but I still wouldn't want any in my eyes.
You are talking about Normality here right? I actually didn't catch how much sodium carbonate people are using per 20ml solution or whatever, but I am going to make an effort to go through this thread again later today. Let me see if I understand the basic idea though:
The further above the target alkaloid's pKa, say nicotine at roughly 8, which the alkaline solution is, the greater amount of freebase salts will be extracted from the tobacco. So, if we're using acids/bases that aren't strong enough, we might not get an accurate ratio of what naturally occurs in tobacco.
By "required" here, I take it that you mean that a fairly concentrated sodium carbonate solution, or relatively weak solution of something higher pH is good enough for a "kitchen method" to get what kinabaloo called 90% WTA.
After finding
this PDF, it seems clear that the alkaloid profile varies between types of tobaccos (see Tables 2/3). So that makes me want to go back to the neurochemistry of these alkaloids individually and ask what exactly it is that we want.
Also, I assume that I will end up with nornicotine (7.75 pKa) no matter what, but I don't think we want
4-(N-methyl-N-Nitrosoamino)-Nornicotine (9.46 pKa) or
2,2'-Bipyridine (Dipyridyl, 4.55 pKa).
Maybe I am just confused here, but besides Anabasine @9.2, there is nothing else that high of pKa, so maybe we don't even want to use a very strong basic solution? I'm having a hard time though finding out what these things like anabatine and anabasine really do to us though.
Looking at
CigRx again, it is anabatine and yerba mate extract. I found some stuff about Native Americans and tobacco which said that the species containing more anabatine/anabasine and little nicotine were used similarly to the more popularly cultivated nicotine-containing species. We have plenty of pure nicotine and I take it that we don't get much mg/ml out of these extractions anyhow, so why shouldn't we be extracting from a species like
n. glauca if we are after stuff like anabatine?
It's a separatory funnel, always has been, always will be. The assumption with a sep funnel is that gas evolution/pressure evolution WILL happen, even if it's not supposed to happen. This is why there are safety procedures a chemist will tend to follow religiously, even if they're probably not necessary for the present procedure.
Somehow I got the word "fractional" or something in my head, sorry.
This one looks good as a whole kit of stand/holder/funnel for a little over $50. I only got to talk to my brother briefly last night, but it looks like we might do two batches, one along the lines of the kitchen process here that should be relatively safe for the untrained, then he seems to know what to do in some sort of lab procedure. It seems like he can use his lab, but probably not any of their chems. I got the idea that some of the hardware-store type solvents really aren't good to use, or need removed by vacuum. He seems to have various ideas about making the WTA more pure, so I am just going to leave that up to him.
DVap said:
I'm partial to American Spirit. A full isolation/purification will result in alkaloids and any "flavor" characteristics unique to the tobacco won't make it into the product. With less than pure product, the flavors unique to the tobacco would tend to be more likely to come through in the product.
I think baseline formulas should be composed of natural (untreated) leaf, it's readily available and quite cheap vs. snus, etc.. Corporate cigarette tobacco is composed of "tobacco products", sheet and a lot of other junk, not so sure what you could be getting. I got a weak looking solution using organic tobacco and wonder if that had something to do with the raw material, I did shoot for a weaker solution though as my thinking was that leaf in its natural state may produce more goodies than I wanted, I know from smoking that an organic analog produces way more punch/satisfaction than any corporate product. I give some filtered MYO cigs out and most people can only smoke half a cig before getting the buzz. Anecdotal here but my GF has cut her cig consumption in half by switching to organic, you really have to space out the usage.
I'm still looking into this, but it seems like being organic is less important than the amount of nitrates and nitrites used in processing/growing/curing, in terms of not getting TSNA's (tobacco-specific nitrosamines, which are carcinogens). I'm not familiar with how organic farming could affect that.
It seems like we want less casing and finer cuts where possible, but I am still pretty confused on the variety of tobacco or the aging process we want. If I don't find anything out, I will go with American Spirit or similar, but I will be able to stop at this place,
Fader's Tobacco, if I want to hone in on something later.