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We don't know the salt form. As you may have read from the the TEK:

"During crystallization, citric acid (H3Cit) reacts with free base mescaline (Mes) to form to form a mescaline citrate salt. The number of mescaline molecules that react with one molecule of citric acid and precipitate is unknown:

nMes(↑) + H3Cit(↑) ⇒ (MesH)nH3-nCit(↓)
Where n could be 1, 2, or 3. The resulting mescaline citrate salt's strength relative to mescaline HCl is 62%, 81%, and 90% respectively."

The mass spec result gave very clean mescaline, that is likely what you have by following the TEK, we just don't know the precise salt form.

It would be very interesting if you converted the mescaline citrate you got to HCl. I've been trying by simply adding HCl and evaporating (with plans to remove citric with EA later), but I got a brown byproduct from what I think is HCl reacting with citric acid while I heated the mix so it would evaporate faster. This byproduct does not dissolve cleanly in EA, making a mess of things.

Dissolving the 3.4% mescaline citrate candidate in a small amount of water, basing, pulling with xylene, and salting with HCl should work and could give us an answer.

PS: there could also be a hydrate form, lowering the % a little more

<blockquote data-quote="Loveall" data-source="post: 3885371" data-attributes="member: 20">We don&#039;t know the salt form. As you may have read from the the TEK: &quot;During crystallization, citric acid (H3Cit) reacts with free base mescaline (Mes) to form to form a mescaline citrate salt. The number of mescaline molecules <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite23" alt="(n)" title="Thumbs down&nbsp; &nbsp; (n)" loading="lazy" data-shortname="(n)" /> that react with one molecule of citric acid and precipitate is unknown:nMes(↑) + H3Cit(↑) ⇒ (MesH)nH3-nCit(↓)Where n could be 1, 2, or 3. The resulting mescaline citrate salt&#039;s strength relative to mescaline HCl is 62%, 81%, and 90% respectively.&quot;The mass spec result gave very clean mescaline, that is likely what you have by following the TEK, we just don&#039;t know the precise salt form.It would be very interesting if you converted the mescaline citrate you got to HCl. I&#039;ve been trying by simply adding HCl and evaporating (with plans to remove citric with EA later), but I got a brown byproduct from what I think is HCl reacting with citric acid while I heated the mix so it would evaporate faster. This byproduct does not dissolve cleanly in EA, making a mess of things.Dissolving the 3.4% mescaline citrate candidate in a small amount of water, basing, pulling with xylene, and salting with HCl should work and could give us an answer.PS: there could also be a hydrate form, lowering the % a little more</blockquote>

[QUOTE="Loveall, post: 3885371, member: 20"] We don't know the salt form. As you may have read from the the TEK: "During crystallization, citric acid (H3Cit) reacts with free base mescaline (Mes) to form to form a mescaline citrate salt. The number of mescaline molecules (n) that react with one molecule of citric acid and precipitate is unknown: [color=orange][center][b]nMes(↑) + H[size=3]3[/size]Cit(↑) ⇒ (MesH)[size=3]n[/size]H[size=3]3-n[/size]Cit(↓)[/b][/center][/color] Where n could be 1, 2, or 3. The resulting mescaline citrate salt's strength relative to mescaline HCl is 62%, 81%, and 90% respectively." The mass spec result gave very clean mescaline, that is likely what you have by following the TEK, we just don't know the precise salt form. It would be very interesting if you converted the mescaline citrate you got to HCl. I've been trying by simply adding HCl and evaporating (with plans to remove citric with EA later), but I got a brown byproduct from what I think is HCl reacting with citric acid while I heated the mix so it would evaporate faster. This byproduct does not dissolve cleanly in EA, making a mess of things. Dissolving the 3.4% mescaline citrate candidate in a small amount of water, basing, pulling with xylene, and salting with HCl should work and could give us an answer. PS: there could also be a hydrate form, lowering the % a little more [/QUOTE]