elementcollector1 Posted January 17, 2012 Share Posted January 17, 2012 I'd like to know if anyone can point me towards a good source of these pure chemicals: tetrahydronapthalene tertiary amyl alcohol (2-methyl 2-butanol) OR tertiary butanol (2-methyl 2 propanol) Thanks in advance! Link to comment Share on other sites More sharing options...
pippo Posted January 19, 2012 Share Posted January 19, 2012 I'd like to know if anyone can point me towards a good source of these pure chemicals: tetrahydronapthalene tertiary amyl alcohol (2-methyl 2-butanol) OR tertiary butanol (2-methyl 2 propanol) Thanks in advance! Are you in the Dairy Lab /testing/milk fat business? Try The chemical superpower Sigma-Aldrich- if theyll sell to yyou. Link to comment Share on other sites More sharing options...
elementcollector1 Posted January 19, 2012 Author Share Posted January 19, 2012 On Sigma-Aldrich, the lowest price for the napthalene is $26.80 and t-butanol goes for twice that, t-amyl alcohol not far behind. Not my favorite pricing, but then again, is this 'analytical standard (Fluka)' worth checking out? It's plenty cheap, something like $18. Which leads me to doubt the purity or amount sold. Still, many thanks for finding at least a possible source of these, even though it's Sigma-Aldrich. Link to comment Share on other sites More sharing options...
pippo Posted January 21, 2012 Share Posted January 21, 2012 On Sigma-Aldrich, the lowest price for the napthalene is $26.80 and t-butanol goes for twice that, t-amyl alcohol not far behind. Not my favorite pricing, but then again, is this 'analytical standard (Fluka)' worth checking out? It's plenty cheap, something like $18. Which leads me to doubt the purity or amount sold. Still, many thanks for finding at least a possible source of these, even though it's Sigma-Aldrich. Well, you just need to determine what grade you need, right? I mean , you mention a concern for the purity. What purity do you need? Its one thing to ask for a higher purity its another to know what % purity you threshold is. If all you need is 99+ why pay more for 99.9, get it? I work all day with 99.999% stuff, then for another order, 99.0-99.5 is perfectly fine!! Its all about the application and knowing the end user's needs. Good luck, man. Link to comment Share on other sites More sharing options...
elementcollector1 Posted January 21, 2012 Author Share Posted January 21, 2012 Well, first, I don't know what an 'analytical standard' is. It could be a diluted solution in water, for all I know. As for my purity threshold, I'd like it to be on the low end at least 90% plus (which is in consideration quite low). Does S-A sell to individuals? Link to comment Share on other sites More sharing options...
John Cuthber Posted January 21, 2012 Share Posted January 21, 2012 If Fluka are selling it as analytical standard it's least as good as you need. Link to comment Share on other sites More sharing options...
elementcollector1 Posted January 21, 2012 Author Share Posted January 21, 2012 (edited) Well, that's good news. So, about ordering: Does Sigma-Aldrich sell to individuals? If so, does anyone know shipping charges? EDIT: Total Price for 2 items: $44.60 + shipping Sigh... Edited January 21, 2012 by elementcollector1 Link to comment Share on other sites More sharing options...
elementcollector1 Posted January 21, 2012 Author Share Posted January 21, 2012 (edited) Never mind about the tetralin, I figured out how to make some from a guy who's done this before. "There is also a published synth using sodium in ethanol to reduce naphthalene to tetralin and then on to decalin. I've actually run this reaction, and yields are a lot higher using a neutral (decane) hydrocarbon with naphthalene dissolved in it, adding sodium, and reducing with ethanol." Now to find some old mothballs, or something... And also figure out a synthesis of t-butanol. Edited January 21, 2012 by elementcollector1 Link to comment Share on other sites More sharing options...
pippo Posted January 29, 2012 Share Posted January 29, 2012 Sorry, maybe late reply- been busy. SA may not sell to personal/individuals. If you have a lab, yes. But, still, they will put you through the ringer first (at least, thats what I understood recently) Link to comment Share on other sites More sharing options...
elementcollector1 Posted January 29, 2012 Author Share Posted January 29, 2012 Aw... darn. Any other places for t-butanol or t-amyl alcohols? Link to comment Share on other sites More sharing options...
Suxamethonium Posted January 29, 2012 Share Posted January 29, 2012 To be completely honest, synthesis is easy enough in theory, but in practise it involves synthesis, collection and reaction of mostly gaseous components for such small molecules. I feel the best way would be to find a cheap comercial product that is a t-butyl alcoholic ester, and then just hydrolyse. You also get a second compound which could be useful later. Otherwise you ar probably in for tedious practical methodology. Link to comment Share on other sites More sharing options...
John Cuthber Posted January 29, 2012 Share Posted January 29, 2012 how easy is it to get and hydrolyse mtbe? http://en.wikipedia.org/wiki/Methyl_tert-butyl_ether Link to comment Share on other sites More sharing options...
Suxamethonium Posted January 29, 2012 Share Posted January 29, 2012 Can't seem to get it easily in australia, but thats the same for a lot of chems. As for the hydrolysis it would probably be harder to seperate the two products (both alcohols) but with a fractionating column it wouldn't be too bad. Link to comment Share on other sites More sharing options...
elementcollector1 Posted February 5, 2012 Author Share Posted February 5, 2012 Darn. I found on Wiki that t-butanol is used sometimes as an octane booster, would anyone be able to give me a brand that does contain t-butanol? Link to comment Share on other sites More sharing options...
Suxamethonium Posted February 8, 2012 Share Posted February 8, 2012 No idea. Petrol contains a lot of things though- no doubt a small percentage is tBuOH. But there's got to be an easier way... You could probably react methyl lithium or methyl magnesium bromide with acetone, then acid work up. Its just a bit tedious and expensive for something that you would probably want in solvent quantities (i.e. 100s of grams). Link to comment Share on other sites More sharing options...
elementcollector1 Posted February 8, 2012 Author Share Posted February 8, 2012 No idea. Petrol contains a lot of things though- no doubt a small percentage is tBuOH. But there's got to be an easier way... You could probably react methyl lithium or methyl magnesium bromide with acetone, then acid work up. Its just a bit tedious and expensive for something that you would probably want in solvent quantities (i.e. 100s of grams). Never mind the t-butanol, a guy just PM'd me with a brand that's about half. Yay! Back to the tetralin synthesis, to wrap up the details. "There is also a published synth using sodium in ethanol to reduce naphthalene to tetralin and then on to decalin. I've actually run this reaction, and yields are a lot higher using a neutral (decane) hydrocarbon with naphthalene dissolved in it, adding sodium, and reducing with ethanol." It says to use decane in the synthesis, but I have no idea where to find that. Would propane work? And what do they mean by sodium? Surely not elemental sodium. As for ethanol, I can use rubbing alcohol (70%) for that. Although it might be better to get a pure sample of the stuff. Link to comment Share on other sites More sharing options...
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