hi
as i have read there a quite a few posts where it says that extract from MHRB is quite white,
mine so far has always a yellow tint even after an additional mini A/B
could this be the result of the Hexane i use for the pulls?
also, would IPA be better suited for this? or at least of the cleanup?
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Yellow is perfectly fine and is expected. Please do not PM tek related questions Reserve the right to change your mind at any given moment.
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cyb wrote:
Yellow is perfectly fine and is expected.
i know that it is fine, but i was just wondering if in my case the tint can come from hexane it is the easiest available solvent i can get, so i did not try any others so far
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Quote:DMT samples were prepared following extraction from Mimosa tenuiflora inner barks or by laboratory synthesis and then its crystals were recrystallized from solutions of the alkaloid using either hexane or acetonitrile. Irrespective of source, crystals originating from synthesis were predominantly white crystals obtained using crystallization from hexane, whereas yellow samples following recrystallization with acetonitrile. Irrespective of source or solvent, two polymorphs appeared to exist with melting points, determined by DSC, of 57 °C to 58 °C for Form I and 45 °C to 46 °C for Form II. Estimates for their enthalpies were 91.9 ± 2.4 J g− 1 for Form I and 98.3 ± 2.8 J g− 1 for Form II. Form II converted to Form I during DSC; conversion was thus prevented by fast scanning rates of 100 °C min− 1. A transition temperature (Tg) in the range − 21 °C (2 °C min− 1) to − 13 °C (100 °C min− 1) was determined depending on DSC scanning rate. Its closeness to the melting point indicates a tendency of Form II to convert to Form I on storage, a phenomenon that was also facilitated by grinding. This study indicates that the presence of differently colored DMT free base crystals obtained from recrystallization might also point towards the existence of polymorphs rather than just the presence of impurities. http://www.sciencedirect...le/pii/S0026265X13000544 -eg
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entheogenic-gnosis wrote:Quote:DMT samples were prepared following extraction from Mimosa tenuiflora inner barks or by laboratory synthesis and then its crystals were recrystallized from solutions of the alkaloid using either hexane or acetonitrile. Irrespective of source, crystals originating from synthesis were predominantly white crystals obtained using crystallization from hexane, whereas yellow samples following recrystallization with acetonitrile. Irrespective of source or solvent, two polymorphs appeared to exist with melting points, determined by DSC, of 57 °C to 58 °C for Form I and 45 °C to 46 °C for Form II. Estimates for their enthalpies were 91.9 ± 2.4 J g− 1 for Form I and 98.3 ± 2.8 J g− 1 for Form II. Form II converted to Form I during DSC; conversion was thus prevented by fast scanning rates of 100 °C min− 1. A transition temperature (Tg) in the range − 21 °C (2 °C min− 1) to − 13 °C (100 °C min− 1) was determined depending on DSC scanning rate. Its closeness to the melting point indicates a tendency of Form II to convert to Form I on storage, a phenomenon that was also facilitated by grinding. This study indicates that the presence of differently colored DMT free base crystals obtained from recrystallization might also point towards the existence of polymorphs rather than just the presence of impurities. http://www.sciencedirect...le/pii/S0026265X13000544 -eg This information is rather new, I always thought from reading here that yellow DMT was mostly due to DMT-Oxide and/or Impurities. Nice.
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ymer wrote:entheogenic-gnosis wrote:Quote:DMT samples were prepared following extraction from Mimosa tenuiflora inner barks or by laboratory synthesis and then its crystals were recrystallized from solutions of the alkaloid using either hexane or acetonitrile. Irrespective of source, crystals originating from synthesis were predominantly white crystals obtained using crystallization from hexane, whereas yellow samples following recrystallization with acetonitrile. Irrespective of source or solvent, two polymorphs appeared to exist with melting points, determined by DSC, of 57 °C to 58 °C for Form I and 45 °C to 46 °C for Form II. Estimates for their enthalpies were 91.9 ± 2.4 J g− 1 for Form I and 98.3 ± 2.8 J g− 1 for Form II. Form II converted to Form I during DSC; conversion was thus prevented by fast scanning rates of 100 °C min− 1. A transition temperature (Tg) in the range − 21 °C (2 °C min− 1) to − 13 °C (100 °C min− 1) was determined depending on DSC scanning rate. Its closeness to the melting point indicates a tendency of Form II to convert to Form I on storage, a phenomenon that was also facilitated by grinding. This study indicates that the presence of differently colored DMT free base crystals obtained from recrystallization might also point towards the existence of polymorphs rather than just the presence of impurities. http://www.sciencedirect...le/pii/S0026265X13000544 -eg This information is rather new, I always thought from reading here that yellow DMT was mostly due to DMT-Oxide and/or Impurities. Nice. Yellow coloring can be a result of lipids, oils, or other impurities, though as DMT has been shown to be polymorphic, pure DMT which is yellow colored can exist as well. endlessness wrote:Yellow colour can be a number of things: - Pure DMT itself has been shown to be polymorphic , so yellow may just be DMT itself. But it can also be other things: -Oily non-volatile impure solvent remains (bad to smoke) -Plant oils/fatty acids or other natural impurities (more likely ok to smoke, and can even make for a more efficient vaporization as it protects spice from the lighter's heat, though might taste a bit harsher) -DMT N-oxide mixed in any proportions to DMT (ok to smoke, also psychoactive, some people even preffer it to normal dmt, others dont like it so much but it definitely works and is not dangerous) - NMT (also psychoactive, though less potent than dmt, about a fourth of the potency). It can also be a mix of all/any of the above. Usinc clean chemicals to extract will guarantee that at least you don't have any dangerous chemical impurities, and in that case yellow wouldn't be a bad thing in either way. https://www.dmt-nexus.me...aspx?g=posts&t=11715 -eg
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