Talk:Chromic acid
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[edit] Topic of Article
Maybe this article should be about Chromium trioxide with with a section on chromic and dichromic acids as side issues. Chromium trioxide is a stable and isolable compound, even though it is reactive with many other compounds. Chromic and dichromic acids do not seem to be isolable, however. Also, I would expect in an acidic solution the chromic/dichromic equilibrium to be pushed practically all the way to dichromic acid. H Padleckas 14:28, 2 May 2005 (UTC)
I don't mind too much, but I see your point that if we want to list properties in a table, it needs to be chromium trioxide or chromium(VI) oxide. We could make chromic acid a redirect to that, with a full coverage of chromic acid oxidations on this page. Good idea Walkerma 19:36, 23 May 2005 (UTC)
[edit] Chromia
I thought I'd drop a note here too that I requested in Talk:Chromia that the relations between several similar terms (that are also related to this article) be clarified. Chromia is about chromium(III) oxide, and Chromium trioxide currently redirects to Chromic acid (see also discussion above). Rl 16:41, 21 August 2005 (UTC)
[edit] Ethanol in contact with chromium trioxide will ignite
This is complete rubbish and should be removed from the article. Just in case, I dropped some CrO3 into ethanol ten minutes ago. No reaction.
- If you carry on in this manner, Darwinian evolution will come into work to enhance the competence of future chemists. Physchim62 (talk) 13:39, 19 July 2006 (UTC)
[edit] Chromates
As suggested by their name, chromates tend to have very bright, bold coloration. If anyone has a photograph of any of the compounds described in this page, it would certainly make the article more readable and more interesting.
- We have ammonium dichromate and potassium dichromate as images. Physchim62 (talk) 08:52, 3 November 2006 (UTC)
[edit] Cleaning
"Moreover, there are other cleaning methods that are just as effective, safer, and more environmentally friendly." Perhaps examples would be helpful/informative? Thelbert 16:19, 20 November 2006 (UTC)
- I am also interested in knowing cleaning methods that are as effective as chromic acid. Off the top of my head I don't know any. Delmlsfan 03:23, 3 January 2007 (UTC)
- Depends what you're trying to clean, but an alcoholic solution of potassium hydroxide (10–15%) is one that I use quite frequently. Glassware comes out of the solution very slippery, so it is best to have a bath of 5% hydrochloric acid handy to do the neutralising before rinsing. Physchim62 (talk) 08:31, 5 January 2007 (UTC)
