Results 1 to 13 of 13
  1. #1
    Cycleon is offline AR-Hall of Famer / Retired
    Join Date
    Aug 2001
    Location
    Wherever necessary
    Posts
    7,846

    Exclamation All u Chem wizards - I need help on test ester

    Lets say I (or someone like me) had access to some Test base (TNE) and wanted to make Test Prop out of it via fisher esterification and then refine it a bit. Also lets say I (or someone like me) had access to good lab equipment like buchi rotorvaps, heater/stirrers, condensers and such - so no need to describe it via kitchenware - does anyone know how to go about this to get the highest yeilds (dont want to waste my powder)?

    1) Now I understand that TNE has a mol wt of 288 and propionic acid has a mol wt of 74. So to get equimolar amts do I add a 74:288 ratio of grams of test/prop? Why then does the finished TP have a mol wt of 344??? Oviously something is lost in the reaction - oooooohhhhh - water (mol wt of 18)..... ok..... but is that right about the ratio? about 4 grams of prop for every gram of test?

    2) what is best catalyst? sulfuric acid? how do I isolate it and get the water out and the catalyst? salt?

    3) how do I purify it without losing much?

    4) what equip do I need and how do I set up the glassware for the process described?

    Much thanks!

  2. #2
    xxxl83 is offline Productive Member
    Join Date
    Apr 2002
    Location
    long island new york
    Posts
    1,370
    Cycleon,

    That's a tough one I'd say your best bet is to contact Billy Bathgate. I'm sure he'll be able to help you out. IMO he's the one of the best as far as questions like this go.

    xxxl83

  3. #3
    chevy44's Avatar
    chevy44 is offline Member
    Join Date
    Dec 2002
    Location
    arizona
    Posts
    723
    CHEMISTRY CLASS!!!!!!!!!!! RUNNNNN!!!!

  4. #4
    Cycleon is offline AR-Hall of Famer / Retired
    Join Date
    Aug 2001
    Location
    Wherever necessary
    Posts
    7,846
    ahhh but this is applied chemistry - much more fun and gratifying

  5. #5
    painintheazz's Avatar
    painintheazz is offline Anabolic Member
    Join Date
    Dec 2002
    Location
    Boston area
    Posts
    3,348
    I will give you a bump and also recommend Billy Bath for the issue. And applied chem is the best, wish they had FINA 101 in college. ahahahaa

    Pain

  6. #6
    motoxxxguy's Avatar
    motoxxxguy is offline Anabolic Member
    Join Date
    Jan 2003
    Posts
    2,623
    bump for Billy

  7. #7
    Farm boy's Avatar
    Farm boy is offline Junior Member
    Join Date
    Apr 2003
    Location
    Georgia
    Posts
    119
    bump for Billy

  8. #8
    EXCESS's Avatar
    EXCESS is offline Retired Moderator
    Join Date
    Aug 2001
    Location
    CANADA
    Posts
    4,449
    bump

  9. #9
    big N's Avatar
    big N is offline Anabolic Member
    Join Date
    Sep 2001
    Posts
    3,137
    cotact billy or superchicken

  10. #10
    jarrett is offline Senior Member
    Join Date
    Aug 2002
    Location
    houston
    Posts
    1,059
    You can't do it @ home....without proper safety....propionic acid is
    very caustic and will burn everything it touches. You need a mask to
    deal with it. Test prop costs the same as TNE so why fucking bother?

  11. #11
    Cycleon is offline AR-Hall of Famer / Retired
    Join Date
    Aug 2001
    Location
    Wherever necessary
    Posts
    7,846
    I have gotten my answers - but thats to all for your help!

  12. #12
    Billy_Bathgate's Avatar
    Billy_Bathgate is offline AR Vet / Retired
    Join Date
    Apr 2003
    Location
    Antarctica
    Posts
    4,393
    sorry, I was moving and jsut now got your PM

    I could have answered them all though lol

    1) Id go with about ~2.5:1 molar ratio so 10 grams per gram test

    2) Sulfuric is what I would use, or reagent grade HCL, but you dont need much really. At the very end, you want to neutralize everything with a tertiary base like tert-butoxide or something.

    3) column chromotography would work great, but after you neutralize everything, and get all your product out, a recrystalization would work well. if in doubt ever, do a TLC on it or GCMS

    4) Id say start with a stir/hot plate, 1000ml beaker, youll need some solvent, like say acetone, youll want a good filter, then if you want to do a column, you need it and the silica gel, thats about it really..you could use a smaller beaker to do your recrystallizations is


    You could also go the acid-choloride route..which youll need about all the same except youll need some pyradine.


    dont blow shit up

  13. #13
    xxxl83 is offline Productive Member
    Join Date
    Apr 2002
    Location
    long island new york
    Posts
    1,370
    Damn Billy I was waiting to see when you were gonna get over here to answer this. I was ready to goto bb4life to track you down.

    Anyway I knew you were the man for this question.

    xxxl83

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •