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I wonder if all nitrate salt of reaction will release oxygen in combustion, just like KNO3? Superdvd ( talk) 10:49, 7 March 2008 (UTC)
Is the picture misleading as it has 3 (-) charges on the oxygens and a (+) charge on the Nitrogen? I think that this resonance structure would make better sense if the (-) charges were denoted as partial negative charges.
yes the above problem does exists and can somebody please add the bond lengths and possibly the bond angles to the picture. Chemfreak20 ( talk) 12:16, 6 October 2008 (UTC)
I believe that the medical work of T. L. Brunton was with amyl nitrite, not amyl nitrate. See the following: T. L. Brunton, "On the use of nitrite of amyl in angina pectoris", Lancet, 2 97, 1867. (I'm putting this at the top of this discussion page in hopes someone will see it. Move as necessary.) -- Astrochemist 00:57, 15 September 2006 (UTC)
I forgot to add that I'm pretty sure F. Guthrie worked with amyl nitrite, not amyl nitrate. -- Astrochemist 01:05, 15 September 2006 (UTC)
The description of nitrate entry into surface waters:
"The principal pathway of entering aquatic systems is through surface runoff from agricultural or landscaped areas which have received excess nitrate fertilizer."
This is inconsistent with the map image of global nitrate concentrations, which shows that the souther oceans, surrounding the not-highly-fertilized south pole, has the highest levels of nitrate.
The wikipedia page for "nitrate" says "Nitrates should not be confused with nitrites, the salts of nitrous acid" but the Nitrite page say "Nitrites should not be confused with nitrates, the salts of nitric acid, or with nitro compounds, though they share the formula NO2" but then the nitrate page says "Later, in 1859 Frederick Guthrie worked with amyl nitrate and noticed that accidental inhalation of it led to face and neck flushing and heart palpitations. It was linked with vasodilatation" and the nitrate page refers to alkyl nitrites as poppers ... and "Amyl nitrite is used in medicine for the treatment of heart diseases".
It seems that the wiki pages are guilty of the sin that they warn others about! I'm not a chemist, but would appreciate some clarification in the articles. If, in some solutions (such as aqueous), the difference between nitrite and nitrate is rather fluid, then perhaps the warning "Nitrxte should not be confused with nitrxtes" should be weakened.
DavidRCrowe 04:36, 19 January 2007 (UTC)
Also, the article includes a bit on how nitrites act in the body, "Nitrites oxidize the iron atoms in hemoglobin from ferrous iron (2+) to ferric iron (3+), rendering it unable to carry oxygen[4]." Since there is an article specifically for nitrites, this passage should be moved there. Alyks ( talk) 17:26, 3 October 2009 (UTC)
Does Nitrate (NO3) react with H3O+? I read that in a book and think it should be included in the article.
Has anyone read Bad Rap for Nitrate? from Scientific American? It claims that nitrates are actually beneficial. — Wulf 18:12, 17 October 2007 (UTC)
Some mention should be made of possible health benefits of nitrates. http://cardiovascres.oxfordjournals.org/content/89/3/525 — Preceding unsigned comment added by 2602:306:CF99:2080:2D2F:5308:5DE7:7E8 ( talk) 14:23, 9 December 2015 (UTC)
Hey, in the periodic table Yttrium has the symbol CY on it (presumably a typo), but I'm a wiki noob and don't know how to change that :S dddddd —Preceding unsigned comment added by 91.125.2.221 ( talk) 10:44, 19 December 2007 (UTC)
The article says "The nitrate ion is a polyatomic ion with the empirical formula NO3−," Thats just the molecular formular, and although it is too the empirical formula theres no need to call it so. Unless im missing something? —Preceding unsigned comment added by 86.27.184.240 ( talk) 20:49, 6 March 2008 (UTC)
I agree, so I'm changing it. Alyks ( talk) 01:26, 8 October 2009 (UTC)
According to surface and tapwater regulations where I live, the concentration of nitrate shouldn't exceed 50 mg/l (aiming value for surface water, strict for tapwater, apparently). For nitrite however, the maximum in tapwater is a strict 0.1 mg/l. Considering that nitrate can metabolize to nitrite, as explained in the article and in the surrounding documentation, why is there 500 times more nitrate allowed in tapwater than nitrite? Does on average only 0.2% of the nitrate metabolize? Or does it only happen in infants, who are after all supposed to be suckling and therefore shielded from nitrate in tapwater? Or is there some other reason? 82.139.86.132 ( talk) 01:47, 20 March 2009 (UTC)
Perhaps a section on nitrate and plants would be sensible. Plants use nitrate for the majority of their nitrogen supply, and so i reckon this is quite relevant. Silasmellor ( talk) 10:15, 21 May 2010 (UTC)
I agree, more attention needs to be placed on how plants use nitrate and on nitrate fertilizers. Ammonium nitrate in particular is widely used in agriculture, and the other main sources of agricultural nitrogen, ammonia and urea, eventually oxidize to nitrate in the soil. Perhaps its placement in the nitrogen cycle is also relevant? Rdnckj258 ( talk) 03:05, 8 August 2011 (UTC)
I took out the word "ironic" in that section because it didn't sound scientific. —Preceding unsigned comment added by 24.10.103.145 ( talk) 19:43, 25 May 2010 (UTC)
In 'Marine toxicity': "when nutrients become limiting then eutrophication can occur". The enrichment of water bodies by (more than normal levels of) nutrients (such as nitrogen) is already eutrophication. Also, for what are the nutrients supposed to become limiting? — Preceding unsigned comment added by Fruitbakje ( talk • contribs) 14:50, 28 June 2011 (UTC)
An IP editor has removed the entire section on cancer causality without explanation. On examining the references, however, I am not convinced of their neutrality. If someone wants to restore this section I would insist on reportage from the medical community. Mangoe ( talk) 13:11, 19 January 2012 (UTC)
This edit [1] is a cut© from the cited font, that is [2].
Please help. I am too novice in wiki and english to intervene. -- Michelino12 ( talk) 22:03, 7 February 2012 (UTC)
My observation: I think this is a great way to present this information! I'd like to see this approach with a lot of other common compounds. 75.70.6.15 ( talk) 23:15, 27 March 2014 (UTC)
Shouldnt there be ammonium nitrate in the N box of the periodic table?
I've heard that the Romans made glass from sand and nitrate. Where did the Romans get the nitrate and how much nitrate did they need?
The #Human health effects section says nitrates are toxic to humans and causes lack of oxygen, but outside of Wikipedia I've read about a tonne of studies showing nitrate rich veg to be good for your arteries and for oxygen flow.
Outside of Wikipedia, nitrates help dilate blood vessels, lower blood pressure, increase oxygen flow to muscles, and increase athletic performance and some recommend eating high-nitrate veg six times a day to cure heart disease. But inside wikipedia, nitrates do the opposite, and they kill infants too.
Am I missing something? Or is this article missing something? Great floors ( talk) 04:26, 2 January 2017 (UTC)
I understood that Nitrate has no health effects (positive or negative) unless it is converted to Nitrite by bacteria in Saliva.
Different people have different bacteria.
So to get a reliable effect, one should consume Nitrite instead of Nitrate.
If you use a lot of mouthwashes (several times a day), there is probably very little conversion of Nitrate to Nitrite in your mouth.
I calculated that you might get benefits if you eat 500g a day frozen spinach. Then you get in average 350mg Nitrate. Unless if it is organic, then it might contain much less nitrate, so avoid organic vegetables if you want to maximize amount of nitrate and nitrite.
-- ee1518 ( talk) 12:34, 15 February 2019 (UTC)
Wikipedia now says:
A wide variety of medical conditions, such as food allergies, asthma, hepatitis, and gallstones, may be linked with low stomach acid; these individuals also may be highly sensitive to the effects of nitrate.[32]
32. "Heartburn and Asthma: What's the Link?". WebMD. Retrieved 2018-12-06.
I did not find the word NITRATE in this WebMD article.
-- ee1518 ( talk) 12:28, 15 February 2019 (UTC)
The article states that the nitrogen has a +1 charge, while the oxygens together have a -2 charge. It s said that resonance results in each oxygen carrying a fractional charge of -2/3 and being connected to the nitrogen by a 1 bond and 1/3.
However, it is myunderstanding that the integer +1 charge on the nitrogen is a formalistic fiction, like the integer valences of the three forms in the resonance. A more truthful description would be that the nitrogen has some fractional positive charge +δ < +1, and the oxygens together have a charge of -(1+δ), or -(1+δ)/3 each; and are connected to the nitrogen by 1+(2-δ)/3 of a bond.
Isn't this correct?
--
Jorge Stolfi (
talk)
09:55, 12 July 2020 (UTC)
Under 'Agriculture' the statement 'Several million kilograms [of nitrates] are produced annually for this purpose.' defies credulity. Should it read a far more plausible 'billions of kilograms'? 122.151.210.84 ( talk) 19:45, 19 June 2023 (UTC)
Nitrate is an inorganic ion, whereas nitrooxylation is the formation of a nitrate ester. Since there is a page for nitrate ester, the redirect for nitrooxylation (and nitroxylation) should go to the nitrate ester page. Note that nitroxylation (with one "o") is not the accepted nomenclature, and instead it is nitrooxylation. Use of nitrooxylation nomenclature can be found here and here. Use of rarer nitroxylation nomenclature can be found here. RoBunsen ( talk) 14:09, 11 August 2023 (UTC)
This article was the subject of a Wiki Education Foundation-supported course assignment, between 16 January 2024 and 11 May 2024. Further details are available
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