Talk:Butanol

Untitled

" Butanol at 85 percent strength can be used in cars designed for gasoline (petrol) without any change to the engine (unlike 85% ethanol)"

What is the "strength" of a substance? And what is it measured against/mixed with? 143.50.183.196 (talk) 15:36, 17 December 2008 (UTC)\

Electrolysis of Ethanol to Butanol

"It has also been proposed that butanol be synthesized from ethanol through electrolysis.[citation needed]

   2 C2H5OH + 2 C2H5OH → 2 C4H9OH + 2 H2 + O2" 

I suggest that this be struck from the article if it cannot be substantiated from the original author. I cannot locate any credible source for this. I wish I could and so do many others but...Beameupscotty 01:31, 31 December 2006 (UTC)

I have removed this reaction. I have never heard of a reaction like it and I could not find any credible source either.

Socksysquirrel 12:33, 13 April 2007 (UTC)

Butanol Melting Point

The melt point is 25.69 °C for t-butanol. Is this correct or is it -25.69 °C?

Yes, it is correct. t-Butanol has a melting point right around room temperature. --Ed (Edgar181) 17:02, 30 May 2006 (UTC)

Disambiguation

I suggest to move each compound (1-butanol;2-butanol;1-metilbutanol;etc.) to differents articles, and convert this article in a disambiguation like in Spanish, Deutsch, Nederlands and Svenska.

Eloy (200.122.55.96 20:17, 21 June 2006 (UTC))

TNT or Cordite?

According to Cordite and other sources (e.g., an email from Dr. Eveleigh, a microbiology professor here (http://www.cook.rutgers.edu/~dbm/dougeveleigh.html)), Weizmann's acetone was useful primarily in making Cordite, not trinitrotoluene (TNT). I will alter this link. If someone has a reference for it being also important for making trinitrotoluene, please add the TNT link back in addition to the Cordite link, and note your reference here and/or on the trinitrotoluene page. --Allens 15:52, 24 June 2006 (UTC)

Biobutanol

I've looked through several different references and handbooks. For instance, I looked through several of the links at Wikipedia:Chemical sources and didn't find the term. Except for some press releases on Google, and this article, I can't find any verifiable references to this term. Perhaps someone would care to share a credible reference. Is trying to push some sort of point of view unrelated to the compound or its properties? WVhybrid 06:22, 18 July 2006 (UTC)

See the butanol fuel about biobutanol. On the other hand, I have read butanol is C4H9OH instead of C4H10OH (nine instead of ten). Is it true [1], [2], [3] and so on...?. --Altermike 12:50, 3 April 2007 (UTC)

9 is correct--Oldboltonian 22:22, 4 June 2007 (UTC)

POV?

Dear all, in the state the document is now, I would almost recommend renaming it to biobutanol. As already pointed out by WVhybrid (contribution above this one) it looks like someone is putting his point of view on this. I think all the material about biobutanol should move to an article on 'alternative fuels', or something similar (making this article more about the properties of butanol, it could state that it is used as an alternative fuel, providing a link there). Could ppl please give their opinion on this. --Dirk Beetstra ^{T C} 07:31, 18 July 2006 (UTC)

I have no idea with regard the validity of this name, but it seems plausible for such a name to exist. My stand would be the same as that on ethanol - "bioethanol" is chemically no different from butanol. It should not deserve a full article. If there is sufficient detail regarding biologically produced butanol to merit a full article, it should be placed in a Butanol fuel page, for consistency wiith Ethanol fuel and Methanol fuel. --Rifleman 82 09:01, 18 July 2006 (UTC)

I have been trying to clean up this article through a large number of edits. It was essentially "propaganda" for a company and their process before. My hope is that the article is more informative and more balanced than it was a week ago. There is misinformation in other articles, e.g. the ethanol fuel article, where some butanol proponent has posted propaganda for butanol. I leave it to someone else to correct this.

I don't want to add anything about the non-fuel uses since my expertise is combustion engines. I will add some more on the properties of butanol compared to other fuels.

I have not used the term biobutanol as the properties of the substance do not change with the origin. However, I agree with Rifleman that it should be accepted in the same way bioethanol has been. User:Ebschgu 20:55, 18 July 2006 (UTC)

Miscibility of n-butanol in water

You know, I don't think n-butanol is miscible in water. I do fractionations in butanol/water and it forms two distinct layers. Of course there could be some butanol in the water layer (I didn't NMR it or anything), but a solubility of 9.1ml/100ml? The figure seems a bit high to me. Having said that, I've only used a roughly 1:1 ratio of butanol to water.

Jkwan (talk) 19:05, 18 April 2008 (UTC)

http://www.inchem.org/documents/icsc/icsc/eics0111.htm gives 7.7 g/100 mL which roughly translates to 9.5 mL/100 mL using the density given there. Hope this helps. --Rifleman 82 (talk) 19:12, 18 April 2008 (UTC)

Isomers of Butanol

Butanol has other isomers as well as those named. All alcohols are isomeric with esters

So 1-methoxy propane (CH3-O-CH2CH2CH3), 2-methoxy propane (CH3-CH(CH3O)-CH3) and ethoxy ethane (CH3-CH2-O-CH2-CH3 are all isomers of butanol. saqu0007 20:27, 22 April 2008 (CET)

Chembox

This could use a chembox like most of the other alcohols and chemicals ~AQ 01:59, 19 December 2008 (UTC)

Suggest merging with http://en.wikipedia.org/wiki/1-butanol

This article can be merged with the n-butanol page as it is more informative. — Preceding unsigned comment added by Kreutznaer (talk • contribs) 10:55, 23 February 2013 (UTC)

Greek name

Why is the Greek name for the chemical on the top of the page. This seems entirely useless. --Akku anka (talk) 00:49, 29 May 2019 (UTC)