Talk:Hydride

message: Hydride is the name give to the negative ion of hydrogen, H−. It is also used as a more general term to describe compounds of hydrogen with other elements, particularly those of groups 1–16, whether or not they actually contain hydride ions. Protide, deuteride and tritide are used in the same way to describe ions or compounds which contain enriched hydrogen-1, deuterium or tritium respectively.
Physchim62 (talk) 02:09, 23 December 2006 (UTC)
thread_title:  Suggestion 

message: According to my dictionary, a hydride is a binary compound formed by hydrogen and another, usually more electropositive, element or group, as sodium hydride, NaH, or methyl hydride.... Moreover, that definition is more in keeping with the use of the word in the article itself, as well as in articles linking to this one. Why not state so outright, instead of saying it's "applied to describe" them, while being "the name given to" something else entirely -- "the negative ion of hydrogen"? Referring to "hydride" as a thing or substance conflicts semantically with discussing the hydrides as a family, a concept which probably predates the use of the word to refer to an ion. D021317c (talk) 13:22, 20 November 2007 (UTC)
replies: text: Oh your comments are appropriate, but the chemistry community/tradition does not always follow the rules of dictionaries.  And we would all like to state the situation "outright" as you say, but term hydride is used more subtly.  Hydride refers to hydrogen atoms that are fairly basic (resulting from their attachment to electropositive elements or groups) but methyl-H is not hydridic, usually. I wished that the chemical word and the world of nomenclature were more perfectly alligned, but they are not and this and other articles defers to reality in the flask vs the rules of language.  At least that's my view.--Smokefoot (talk) 13:42, 20 November 2007 (UTC)
replies: text: Then explain both worlds explicitly. The usage may be subtle, but the article doesn't need to be confusing. 89.217.12.82 (talk) 18:21, 28 January 2015 (UTC)
replies: text:   I come to this section with the same question.  In PowerPoint slides of Zumdahl 8th edition (and perhaps the book), water is regarded as one of the covalent hydrides.  LibreTexts also discusses ammonia/hydrogen halides as examples of covalent hydrides.  However, the article has this line According to the convention above, the following are "hydrogen compounds" and not "hydrides":[citation needed].  I think it is ok to explain both views as long as we have proper citations. I can get a quick look into several general chemistry textbooks and revise to line. --Taweetham (talk) 01:11, 24 June 2020 (UTC)
thread_title: Definition

message: From google (and a mere 405,000 hits), per the above category link: "The collection of instances of chemical compound formed when hydrogen reacts with any of the Alkali Metal Elements, calcium, strontium, or barium."
... which matches nothing categorized therein. Though [
http://www.experiencefestival.com/a/Hydride_-_Ionic_hydrides/id/5290965 this coverage] seems far more likely to my 35 years ago chemistry...
And in slides 8 through ten of: http://www.lyon.edu/webdata/users/fbeckford/CHM%20120/Lecture%20Notes/Chapter-14.ppt which also covers the term Molecular hydrides, which is another null search in our pages. (And I hate that! <g>)
Can someone update the article with some coverage of these and place an explanation blurb in the commons category as well. You really don't want me editing chemistry articles! Trust me! <g> Thanks // FrankB 03:59, 28 July 2008 (UTC)
replies: text: Its easy to tag technical article and to google information, good and bad, but your point is what?--Smokefoot (talk) 13:02, 28 July 2008 (UTC)
thread_title:  Commons category... [[commons:Category:Ionic hydrides|Ionic hydrides]] 

message: It would be nice to get some citations for this article.  Lets cite this article and/or rewrite it to reflect the practical usage of the term hydrides.  We should also clearly explain that the antiquated hydride nomenclature in which almost anything that has hydrogen in it can be refereed to as a hydride is very antiquated.--OMCV (talk) 04:01, 28 April 2009 (UTC)
thread_title:  Citations 

message: Does it exists? --RokerHRO (talk) 09:31, 19 May 2011 (UTC)
replies: text: under pressures of over 3.5GPa a hexagonal iron hydride exists. FeH is also an important molecule in stars. Graeme Bartlett (talk) 12:07, 18 April 2012 (UTC)
thread_title:  iron hydride 

message: I made a number of bold revisions of this article.  Feel free to make constructive criticisms or voice concerns and I will try to address issues.  Here are the main points.  Transition metal hydrides are not really a class of hydrides (like saline, covalent, interstitial).  The statement was made that the nonexistence of hydrides in solution (water, really) is akin to the non-existence of protons in water.  While it is true that naked protons do not exist, solvated protons do. There is not an analogous solvated hydride, at least I dont know of such species.  The nomenclature section seems long and somewhat arbitrary, but other articles accumulate such lists.  The problem with such lists is that they obscure the readability and they are arbitrary.  IMHO, categories are a better kind of list. I also tried to minimize the number of sections by blending similar topics. I will check back tomorrow.--Smokefoot (talk) 13:56, 17 October 2011 (UTC)
thread_title: Revisions of Oct 17, 2011

message: The technically very important alloys used for hydrogen storage in NiMH batteries seem to have been left out. They probably belong to the interstitial hydride group. There is some, but rather little, information on this in other articles (eg on the batteries or on Lanthanum) but I can't find any article on the alloys per se or the most important group of these alloys, the AB5 group.  — Preceding unsigned comment added by 150.227.15.253 (talk) 10:11, 29 November 2011 (UTC)
thread_title:  "battery hydrides" 

message: The web (especially YouTube) is full of "Metal Hydride" heat engine info. Is this a hoax?
If not, it should be mentioned in the "uses" section. 
The claim is that "Metal carbide" supposedly expands drastically, "without condensing on the piston", 
when in contact with heat. Can someone confirm? פשוט pashute ♫ (talk) 08:16, 18 April 2012 (UTC)
replies: text: It is not a hoax. See https://doi.org/10.1016/0013-7480(79)90016-0 or https://patents.google.com/patent/US5082048. But it would not be a "use", as it is just a demonstration or invention. Graeme Bartlett (talk) 07:23, 12 May 2020 (UTC)
thread_title:  Metal Hydride heat engine - hoax? 

message: The article says:
"Covalent hydrides
According to the antiquated definition of hydride covalent hydrides cover all other compounds containing hydrogen.  The more contemporary definition limits hydrides to hydrogen atoms that formally react as hydrides and hydrogen atoms bound to metal centers. ". 
So apart from spelling centre wrong (national variation I guess), a hydride is something which behaves like a hydride? Not much of a definition. The wording 'antiquated' immediately strikes me as POV. Some of the discussion on this page suggests it is not so antiquated a definition in that a number of quietly rusting scientists still seem to hold it (like me). Wiki reports what is, not what people would like to be and if many hold a view, thats what is.  I dare say the article is correct in suggesting that a tighter definition of hydrides has been created in contemporary chemistry, redefinition is a typical trend in science, but I dont know this. The current wording seems to be having a bit of a dig at incompetent ancients. Sandpiper (talk) 07:48, 7 August 2012 (UTC)
thread_title:  Antiquated definition 

message: I propose that Binary compounds of hydrogen be merged into Hydride. I think that the content in the Binary compounds of hydrogen article can easily be explained in the context of Hydride, and the Hydride article is of a reasonable size that the merging of Binary compounds of hydrogen will not cause any problems as far as article size or undue weight is concerned. Plasmic Physics (talk) 12:19, 9 August 2012 (UTC)
replies: text: You are right there are more references to general text books in binary compounds than in the hydride article. However those in binary compounds are inline and against the same statement in the lede. The current article bears little relation to the version you left and has moved in a different direction and therefore the contents cannot be said to be adequately referenced by those general text books, in fact in places it flatly contradicts them. Axiosaurus (talk) 14:08, 20 September 2013 (UTC)
thread_title:  Merger proposal 

message: The overall quality of the article has reduced since the last assessment.Axiosaurus (talk) 10:45, 24 October 2013 (UTC)
thread_title:  Reassessed as C Class