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What's with the odd duplicaiton of numbers? -- Belg4mit 02:39, 17 October 2007 (UTC)
According to most MSDS iodo methane is a possible carcinogen. I will add that statement. Also I changed the NFPA diamond rating according to the Sigma-Aldrich MSDS (3-0-1)
Xenofonos (
talk) 17:16, 3 April 2008 (UTC)
I can't really call myself a very good chemist as my formal education on the matter isn't too great but this: 5 CH3OH + P + 2.5 I2 → 5 CH3I + H3PO4 + H2O
Just has to be wrong.. For one, can't say I've ever heard of a half DIATOMIC (note the di) molecule before... Just how do you add half a dimolecule to a reaction?? Can't be done!
Matter of fact, I've seen plenty of half diatomic molecules and strange uneven numbers in formulas when browsing wikipedia.. (But never EVER in real chemistry books or such) So whoever you got writing them should be "fired" or whatever..
Second, even if you make the numbers even (and the dimolecules whole) by doubling them.. It still doesn't add up. Since the iodinating reagent is PI3 then there is too litte P per I. 2P + 5I2 can't create enough PI3 to make 10 units of CH3I. Actually, NOTHING in the formula seems to add up..
So I'd say the correct reaction(s) would be:
4P + 6I2 -> 4PI3
PI3 + 3CH3OH -> 3CH3I + H3PO3
Or put as one reaction: 4P + 6I2 + 12CH3OH -> 12CH3I + 4H3PO3
So even the Phosphoric acid (H3PO4) is wrong, it's actually Phosphorous acid. (H3PO3) So unless someone here is interested, I'm eventually going to change it myself. —Preceding unsigned comment added by 90.227.181.98 ( talk) 22:35, 22 August 2008 (UTC)
CH3-OH |
|
CH3-I |
I propose we change the name of this article to methyl iodide, as this name gets more hits on google, google scholar, and google news. FWIW, in my undergraduate and graduate experience, methyl iodide was used for commonly by my professors and colleagues and text books than iodomethane. Yilloslime T C 17:23, 25 September 2009 (UTC)
I agree that if one lives in the American province of California, their recent regulations are of interest. But my feeling is that Wikipedia should steer away from being US-centric. Citing recent newspaper articles is probably too local and too newsy (also the articles failed the NPOV grounds, insinuating that the ruling was a bad idea (probably is in my mind, too)) That is what I though WP:NOTNEWS and WP:SECONDARY and other guidelines are about. Again, my heart goes out to those disappointed by the local regulations, but we dont report on provincial regulations in other parts of the globe. I thought that this is obvious, but other experienced editors seem to disagree, and I look forward to comments on why California rates so highly.
On the methylation business, I was thinking about moving most of the methylation content to Methylation. Just a thought. It seems that evaluating relative qualities of MeI vs MeCl vs Me2SO4 are more appropriate in an overview. -- Smokefoot ( talk) 18:39, 6 December 2010 (UTC)
I agree that the article could do a better job describing its pesticide use and the surrounding controversy--and to do it in a less California-centric manner--than in this version. But having said, I think this version is better than not having it discussed at all. I don't have a ton of time to put into WP these days as my contribution log attests, but I'll try to keep an eye this and clean it up a bit. Yilloslime T C 20:45, 6 December 2010 (UTC)
Article previously said "Breathing methyl iodide fumes can cause lung, liver, kidney and central nervous system damage. It causes nausea, dizziness, coughing and vomiting. Prolonged contact with skin causes burns. Massive inhalation causes pulmonary edema.[citation needed]" but someone removed that. Can anyone find a source or say what the effects of acute or chronic exposure are ? Rod57 ( talk) 14:31, 26 April 2011 (UTC)
"Neither the U.S. Department of Agriculture nor the U.S. EPA has measured detectable residues of methyl iodide or any other soil fumigant in the food supply or in fruit or produce grown in methyl iodide-treated soils.[citation needed]"
This line strongly implies (1) that the DoA and the EPA have actively been looking for the chemical and (2) the crops grown in methyl iodide-treated soils have entered to food supply. Since they only start using this stuff 2 months ago I doubt that any crops grown in methyl iodide-treated soils have entered to food supply yet. Can anyone verify this? — Preceding unsigned comment added by Tdc204 ( talk • contribs) 07:12, 19 July 2011 (UTC)
I was looking for a source for that info...but the following came up from a mother/child forum in a discussion about concerns over giving kids strawberries:
According to Wikipedia, "First commercial applications of MIDAS soil fumigant in California began in Fresno County, in May, 2011. Since that time, it has been applied to soils used to grow a variety of crops. Since its federal registration, more than 17,000 acres of cropland have been treated with MIDAS products without a single health or public exposure incident. Neither the U.S. Department of Agriculture nor the U.S. EPA has ever measured detectable residues of methyl iodide or any other soil fumigant in the food supply or in fruit or produce grown in methyl iodide-treated soils."
[REPLY] I'm not sure of the souce for information from the wikipedia entry. But I do know that just last month, 40 independent scientists, including 3 Nobel Laureates in Chemistry, have appealed to EPA Administrator Lisa Jackson to eliminate the use of methyl iodide. Enough for me to be concerned and want to learn more!
[REPLY] Wikipedia can be changed by anyone, just an FYI, not a reliable source of information.
[REPLY]Let me educate you here too! Before a change is made it must be validated. We used to tell our students that Wikipedia is not reliable because it could be changed by anyone, but that is not the case any more. The changes must first be investigated. Are you sure you're not the ignorant one?
[REPLY]Wikipedia can be changed by anyone but is usually changed back in a matter of seconds. Go change an article and see how fast it gets changed back.
[REPLY]Wikipedia is NOT a valid source. My college does not allow it as a credible source when writing a paper.
[REPLY]Umm...I've already graduated and have my Master's and I used to teach it wasn't reliable too! But as just mentioned there are now guidelines in place so that only reliable and credible information can submitted.
For this reason I'm going to delete that information because I can't find a source for it. Gandydancer ( talk) 16:45, 21 July 2011 (UTC)
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Cheers.— cyberbot II Talk to my owner:Online 19:29, 27 June 2016 (UTC)
It seems that National Biochemicals Corp. copied this page for their product information guide. I added the backwardcopy template to this talkpage, but as I have no knowledge on how to investigate this, I'll have to leave it to others. 68.48.110.17 ( talk) 23:42, 19 August 2016 (UTC)
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Watching S01E03 of "Clarice" and the assassin kills the sniper in the interogation room by putting the poison "Methyl Iodide" in or on a can of soda. Sniper takes a few sips of poisoned root beer, starts having convulsions, foaming at the mouth and flops down on the floor, dead. An analysis of the soda reveals "Methyl Iodide" which they say in the show is used by pharmaceutical companies and as a pesticide. So I'm thinking if it was that toxic, I would have heard about this poison before, came here, read the Article and while it's toxic, it's not THAT toxic. A total of like 11 deaths and all of them industrial accidents. But no "minimum dose" listed in the Article required to kill someone. Curious what that might be. Also if it has a flavor or a smell. Yes I know it's a fictional show, but when you basically get lied to by the TV, it would be nice to come to Wikipedia to find out what the truth is. It would "improve the Article". 68.206.248.178 ( talk) 06:14, 28 June 2021 (UTC)