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All 6 posts   Subject: removing quat salts   Please login to post   Down

 
    stratosphere
(Hive Bee)
09-30-04 11:14
No 533896
      removing quat salts     

a certain otc product is mostly a aqueous solution of a chem swim wants, unfortunatly there is about 0.5% alkyl (C14-C18) dimethyl benzyl ammonia chloride, can swim remove this with a nonpolar extraction?
 
 
 
 
    indole_amine
(Hive Bee)
09-30-04 16:28
No 533917
User Picture 
      maybe extraction doesn't help - but distillation..     

Qaternary alkylammonium salts with such long side chains are usually PTCs - so I wouldn't hope for too much regarding extractions...

Is there a possibility for you to distill the mixture? Should enable you to get rid of the quad...


indole_amine
 
 
 
 
    stratosphere
(Hive Bee)
10-01-04 12:10
No 534020
      sorry, but whats a ptc?     

sorry, but whats a ptc? phase transfer catalyst?

distillation isn't an option unfortuantly.
 
 
 
 
    indole_amine
(Hive Bee)
10-01-04 12:54
No 534024
User Picture 
      ptc     

Yes, PTC means Phase Transfer Catalyst. Their purpose is to "fuck up" layers of normally immiscible solvents, as they are soluble in both and are able to carry other molecules from one phase into the other...frown

Post 504831 (Nicodem: "A must have PTC review", Chemistry Discourse)

Post 531883 (indole_amine: "Phase Transfer Catalysis - Comprehensive Review", Chemistry Discourse)


I doubt that you will have luck with non-polar xtractions (although the benzyl group could make  big difference, regarding solubility)... but maybe you should just try it with a small amount; experiment is king!


indole_amine
 
 
 
 
    fuckensac
10-01-04 20:37
      Dude.Dude.Dude. Fucking wake up learn chem u...
(Rated as: redundant)
    
 
 
 
    claude
(Stranger)
10-04-04 07:00
No 534362
      What about alternative quat ?     

What is the purpose of your quat ? Numerous quats can be substituted by another one. Depending on what you wanna do, maybe the idea is to find an alternative, instead of doing a difficult extraction. For exemple some otc quat are used to eliminate algae in swimming-pools. The quat often change with each different firm of production, so different varieties can be obtained.
 
 

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