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Was the first paragraph of this plagerized? Compare to the first paragraph of this: http://www.3dchem.com/molecules.asp?ID=309 —The preceding unsigned comment was added by Ajladine ( talk • contribs) 00:56, August 22, 2007 (UTC).
why does this explosion occur? Why is the compound so delicate? how is it used? how is it kept safely? Kingturtle 04:18 8 Jun 2003 (UTC)
This site has a good overview on the compound. I believe that it can be kept stable in an aqueous solution or in pure liquid form. It does not have any uses as far as I know besides to demonstrate it explosiveness. - Eszett 16:17 10 Jun 2003 (GMT -5)
The reason for the explosion can be worked out by the same means any chemist would use - determining the energy of the products (N2, NH4I, I2, NH3) relative to the reactants (NI3, or NI3.NH3x). The aqueous solution is not stable; only the ammonate (NI3.NH3x) is stable. If an aqueous solution becomes depleted of ammonia (by formation of a higher ammonate or escape of gaseous nh3 from the soultion), it becomes unstable.
I removed the bit about spreading it on the floor and having people step on it. It's neat, and it's not very dangerous, but I don't think it belongs in an encyclopedia. And it stains feet, and any excess iodine can burn a bit. It just doesn't belong there. Nick 22:47, 17 December 2005 (UTC)
I saw Don Showalter demonstrate the reactive tendencies of nitrogen triiodide with a feather on World of Chemistry. I recall it was mentioned somewhere on the wiki.
Does the home-preparation section belong on Wikipedia? I'd say it'd be more at home on Wikibooks. GeeJo (t) (c) • 09:59, 6 February 2006 (UTC)
Previously the article listed the two as synonymous, however aren't they NI3 and NH4I3 respectively? If they are the same, an explanation is in order in the article somewhere. For now I've removed "ammonium triiodide" from the opening paragraph. If someone puts it back can they please an an explanation as to why they are the same? 129.82.48.50 23:08, 16 May 2006 (UTC)
A small error on the stability of the compound. It is not due to the stability of the products. That has nothing to do with the activation energy of NI3. The instability of NI3 is mainly due to the relative sizes of the Nitrogen and the Iodine. Since the Iodine atoms are huge in size compared to the Nitrogen atom, they are packed close together. This causes high repulsive forces between the 3 Iodine atoms, causing instability of the molecule. —Preceding unsigned comment added by 75.46.109.190 ( talk) 22:24, 21 October 2007 (UTC)
While it doesn't really answer this question, this article has some interesting information regarding the thermodynamics of the reaction. Tudela, D. Journal of Chemical Education 2002, 79, 558. Full text -- Itub 11:06, 6 November 2007 (UTC)
I deleted the section describing the step-by-step preparation process of the explosive NI3. This kind of information does not belong here. JEFCG 30 June 2006.
OK. After reading up on what was said above, it's true, it shouldn't be spelt out (UK spelling). However, links should be given to show people how it is made because it's a fun thing for kids to try.
"Gunpowder like snap". WTF? Gunpowder does not detonate and thus does not give a snap like this substance does. Where does that line come from? I find it somewhat inaccurate. — Preceding unsigned comment added by 93.162.119.14 ( talk) 06:46, 7 June 2012 (UTC)
Agreed. Came here to say that. Will edit. — Preceding unsigned comment added by 194.177.253.106 ( talk) 18:23, 28 January 2013 (UTC)
Which thermodynamical dimension is this? Is it the reaction's enthalpy ΔH or the reaction's free enthalpy ΔG? If it is ΔRH, the value is a bit strange because it is less than the ΔRH of the equivalent reaction with NCl3 (ca. -460 kJ/mol), implying that the thermal decomposition of NCl3 is more violent (even if it occurs at higher temperature due to higher kinetic stability) than that of NI3. As far as described in the articles, the opposite should be the case... -- 79.243.242.143 ( talk) 20:51, 6 September 2013 (UTC)
Would it be possible to start adding Lewis structures to help beginning chemistry students understand the bonds between the atoms as in double bonds and the like Samuel P. aka Unknown9876789 ( talk) 15:15, 4 March 2014 (UTC)
The comment(s) below were originally left at Talk:Nitrogen triiodide/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.
A small error on the stability of the compound. It is not due to the stability of the products. That has nothing to do with the activation energy of NI3. The instability of NI3 is mainly due to the relative sizes of the Nitrogen and the Iodine. Since the Iodine atoms are huge in size compared to the Nitrogen atom, they are packed close together. This causes high repulsive forces between the 3 Iodine atoms, causing instability of the molecule. |
Last edited at 22:22, 21 October 2007 (UTC). Substituted at 01:20, 30 April 2016 (UTC)
The infobox says sublimation at −20 °C: compare NI
3 (395 g/mol) to WF
6 (298), although W(CF
3)
6 isn't ruled out. What's the source for −20 °C?
Alfa-ketosav (
talk) 11:48, 5 September 2018 (UTC)
Youtube is full of videos showing an explosion and purple cloud. This article should say whether that purple cloud is toxic.
The first paragraph of this article says "...releasing a purple cloud of iodine vapor", but later the article says
"The dry material is a contact explosive, decomposing approximately as follows:
8 NI3 · NH3 → 5 N2 + 6 NH4I + 9 I2"
So which is it? "Iodine vapor"? Or is the purple cloud a combination of Ammonia, Ammonium iodide, and Elemental Iodine (I2)? And is the purple cloud an actual vapor or is it a cloud of solid (liquid?) Iodine particles? Iodine boils at 113.7 °C and Ammonium iodide boils at 551 °C so (based upon my extensive education (which consists of getting a C- in high-school chemistry) it seems that only the Ammonia would be a vapor, while the purple stuff would be an aerosol.
Could someone who understands chemistry please write up a paragraph with citations explaining what is in that purple cloud and whether it is toxic? 2600:1700:D0A0:21B0:5A9:3B45:A28C:DE50 ( talk) 18:40, 4 April 2022 (UTC)
Nitrogen Triiodide is sometimes referred by the name "Touch Powder", I feel like it should at least be mentioned or added as a name. Tungster24 ( talk) 23:02, 9 July 2022 (UTC)
AsI know from producing histcompound when an A level student, it is stable enough to be easily transported when wet with water or alcohol. In fact even when damp with either liquid, if a flame is applied, it decomposes with the described iodine cloud, but not explosively. Once left to dry, a fly landing on it causes it to explode. 92.18.253.83 ( talk) 14:03, 23 April 2023 (UTC)