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Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists.

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 #1 
Old 2002-11-18, 17:44
Online2002 Online2002 is offline
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Default Help needed please !

Hi the pseudo pills that i have are made up from 50% pseudo and the rest is SACCHAROSE and MODIFIED CORN STARCH.
My Question is what is the best way to get rid off the SACCHAROSE and MODIFIED CORN STARCH would these 2 dissolve in Toluene in the pre wash or would i need to use something else.
Thanks for your help.
 #2 
Old 2002-11-18, 17:48
tryptamine tryptamine is offline
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Default Re: Help needed please !

Neither of these dissolve in any extent in toluene.
 #3 
Old 2002-11-18, 18:11
Online2002 Online2002 is offline
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Default Re: Help needed please !

Ok thats my problem when i try to extract the pesudo i get alot of sugar shit in it what would be the best way to separate these 3 things.
 #4 
Old 2002-11-18, 18:18
Online2002 Online2002 is offline
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Default Re: Help needed please !

From 35.6 gr there is 14.4 gr pseudo and 21.2 gr SACCHAROSE and MODIFIED CORN STARCH.
Thats alot of shit to clean out
 #5 
Old 2002-11-18, 18:26
Online2002 Online2002 is offline
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Default Re: Help needed please !

Hi tryptamine could you help me on this one please
 #6 
Old 2002-11-18, 23:16
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Default Re: Help needed please !

Hi i was looking on the net and i think hydrochloric acid should neutralize Saccharose could someone tell me if iam allright.
 #7 
Old 2002-11-19, 04:22
tryptamine tryptamine is offline
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Default Re: Help needed please !

No first you make it basic with NaOH then you extract (or wash) it with toluene. The sugar stays with the water and the E freebase goes into the toluene. You can evap off the toluene and use the freebase E or you can dry the toluene over anhydrous MgSO4 and gass with anhydrous HCl to get Ephedrine HCl salt.
 #8 
Old 2002-11-19, 06:24
Online2002 Online2002 is offline
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Default Re: Help needed please !

Thank you for your help.
 
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