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Purity - Testing cocaine purity via melting point / temperature methods

Discussion in 'Cocaine & Crack' started by white_lighter, Feb 24, 2004.

  1. white_lighter

    white_lighter Newbie

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    "Blow" and cocaine melting point?

    yea i was watching blow for the 90th time and i was wondering what is that lil thing that they dont show that he puts the coc on to find out what the temp it melts at cause somone told me it was called a hotbox but when i looked it up on the net nothing came up so i wanted to know if there was any othere names or does anyone know a good place (on the net) i could get one
     
  2. white_lighter

    white_lighter Newbie

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    yea i found somthing im not sure if it is it but it looks damn closethere called digital hot plates theres all kinds and some cost from 89 to almost a thousand dollers but im sure they will do the trick





    lol looks like i answerd my own question
     
  3. dan46

    dan46

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    It's jsut a melt point tester


    they used to sell them in the 80's and 90's when coke was big for about 100 bucks


    nowadays forget finding one I guess but a thiele tube setup is just as accurate an cheap to setup and/ or buy in a set


    all it is is a thermomether and the thile tubeand atiny epitheraial tube to attach the coke sample to for a test for melt point


    all in all with a stand about 30 bucks maybe


    see "the cocaine handbook" for setup info or ANY organic lab setup tezt on how to setup a melt test setup with thiele tube


    easy as hell


    faster isto use different solvents to do a quick wash of the unknown substance to see what it is and about how pure it is--easy to do in a situation where speed and quickness is necessary





    ------


    I dont do anything illegal and you should not either


    take care
     
  4. dan46

    dan46

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  5. xxxhris44

    xxxhris44

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    digital hot plate is what you need, learn how to use it first b4 purchasing....www.google.com will help how to operate.....oh yea, you did answer your own question.....try to get the same results for 30 dollars....what a joke i dont understand why people who are ignorant answer others questions here.......sad but true
     
  6. fearmegod

    fearmegod Newbie

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    Just a little curious about this. I personally Have tries searching
    google for about the last hour. I have put several different keyword
    combinations. Couldn't find anything supporting the methods they use in
    the movie. In the movie they heat up the cocaine and what temp it melts
    away at indicates the potency. Since I couldn't find anything on it,
    and am stumped, it is really baffling me! Anyone around here
    enlightened in that field?

    </font>
     
    Last edited by a moderator: Sep 21, 2007
  7. idr0p

    idr0p

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    well... it quite possiably can be.. i man.... the idea behind it is
    solid.. cocaine should burn at a higher temp then its cutting material.
    so if it started to melt at 100 which most material does it must be cut
    with something,
     
  8. tonyxxy

    tonyxxy

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    Pure Cocaine Hcl has a melting point of 195°C. Which means of you test yourgear and it has a melting point close to 195°C you're good [​IMG]. One could also test solubility.


    This is taken from the Merck Index:


    Derivative Type: Hydrochloride
    Additional Names: Cocaine muriate
    Molecular Formula: C17H21NO4.HCl
    Molecular Weight: 339.82.
    Percent Composition: C 60.09%, H 6.53%, N 4.12%, O 18.83%, Cl 10.43%


    Properties:
    Crystals, granules, or powder; saline, slightly bitter taste; numbs tongue and lips. mp ~195°. [a]D -72° (c = 2 in aq soln pH 4.5). One gram dissolves in 0.4 ml water; 3.2 ml cold, 2 ml hot alcohol; 12.5 ml chloroform. Also sol in glycerol, acetone. Insol in ether or oils. Avoid heat in preparing soln as it decomposes. Preserve in well-closed, light-resistant containers.


    Melting point:
    mp ~195°


    Optical Rotation:
    [a]D -72° (c = 2 in aq soln pH 4.5)





    Regards,


    tonyxxy
     
  9. newposts

    newposts Silver Member

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    Even the machine they used in the movie is real. All I know is what I saw in the movies :)
     
    Last edited: Mar 31, 2008
  10. pokergod0588

    pokergod0588

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    is it possible to improve potency by taking it up to about 120-150Cand then dabbing out the liquid or something?
     
  11. quinone

    quinone

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    Whenever I have tested the purity of something using its melting
    temperture (often used in organic chemistry) its done through a very
    small quantity of product in a small capillary tube. I dont think
    in the case of cocaine you would have enough in the capillary to make
    it worthwhile dabbing out the liquid. And I wouldnt recomend
    trying to heat lots of it above 120C, thatd be hard imho.
     
  12. Benga

    Benga Platinum Member & Advisor

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  13. bman1

    bman1 Palladium Member

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    If one was just to test the melting point for coke, could the cutter
    not just use a subsatnce of higher melting point? How could this
    prove puriety?
     
  14. pinkfloyd2048

    pinkfloyd2048

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    The principle behind melting points is that pure substances have a narrow melting point whereas impure substances will have a range of more than 5 degree (opinion). There is no such thing as a single melting point because you have to watch the substance form the first liquid drop, the watch for the whole substance to melt. If your substance starts to melt at 193 and ends at 195, you have a pretty pure substance. However, if the range is 188-195, then there exist some impurity.


    A low melting point will result from a contaminant with a lower melting point than the compound in question. Low melting points are much more common, for ionic compounds tend to be the source of high meltemps.
     
  15. scitech

    scitech

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    Alright, lets reclarify some things here



    A pure substance will ALWAYS melt at a higher temperature then
    something with impurities: its known as the fluxing effect(maybe, its
    been a while since SWIM has been in college). Pure coke will melt at
    around 195, even a small amount of impurities will send the melting
    point faaar down



    BTW, your looking for a Mel-Temp if you have enough to warrent testing
    it. Not sure how much they cost these days, but basically its a heating
    block with space for a thermometer and capillary tubes, and a lens so
    you can see when the shit melts



    -sCi
     
  16. Dr. Electrobond

    Dr. Electrobond

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    What would happen if the coke was cut with something with a higher melting point? Say you find a substance with a melting point of 230 degrees? Would you just have to watch for anything left after the temp. exceeds 195?
     
  17. Urban

    Urban Titanium Member

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    ... so does that mean that you could in theory "melt" the crap out of swiys cocaine before snorting it.................... therefore avoiding nasty cutting substances!?!

    x
     
  18. Ant-Man

    Ant-Man

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    SWIMS insight.......The theory of melting coke was based on the mid 70's thru mid 80's when a person could still get relatively pure cocaine. Cut was still up and comming, as they say. Pure, or almost pure, cocaine is a thing of the past (There is a response under OD'ing, however, which sheds some insight on the REAL potency of almost pure coke) therefore a quick and possibly less destructive method of doing a quick check is drop a small rock into a teaspoon with a tiny amount of water in it. Mix the rock into the water until desolved and wait a couple of minutes. 99% of the time you will see sediment develop on the bottom of the spoon, which represents the "Relative" amount of Cut vers Coke ratio.
    Forgive SWIMS spelling....he's working on day four (4) of a truely extensive out of body experience

    P.S. Don't do that Urban, you'll fuck up your product!!!
     
    Last edited: May 20, 2006
  19. Urban

    Urban Titanium Member

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    thanks!!!! swim wouldn't want to waste any blow!!!

    x
     
  20. garbled

    garbled

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    SWIM used to put a small amount in a spoon, add enough water to liquify and then hold a lighter under it. When the liquid evaporated, you could see the cocaine become a oily globule while the cut would leave a white powdery residue around the perimeter of the spoon. The larger the oily brown spot, less cut. The larger the white powdery residue, more cut. Not scientific but you could tell if you had purer cocaine if you ended up with little white residue.