Talk:Sodium
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Article changed over to Wikipedia:WikiProject Elements format by maveric149. Elementbox converted 19:18, 22 Jun 2005 (UTC) by Femto. Previous revision was that of 05:04, 22 Jun 2005
[edit] Information Sources
Some of the text in this entry was rewritten from Los Alamos National Laboratory - Sodium. Other information was obtained from the sources listed on the main page but was reformatted and converted into SI units.
[edit] Talk
I don't see much reason to keep Temp around; does anyone else? -- LDC
- In this case I would say no -- I worked on it 3 hours straight instead of my usual habit of speading the work over a few days. If it bugs you that it exists then delete it. --mav
I just wanted to make sure there wasn't some reason to keep it that I hadn't thought of. If no one objects for a while, I will.
Anything on sodium as it relates to nutrition? Actually, there are many things on Sodium that relate to nutrition. One example is your soda drink. Sodium is used in cooking items in: Salt and baking soda. Most nutrional values of Sodium always contain Sodium used as a mixture. Sodium is used in Medicine, the compound that is used in Medicine is nitrous oxide, which it is also widely used as an anesthetic during surgery, in which it is injected into the patient to produce unconsciousness for 1 to 3 minutes, only because nitrous oxide has a property to escape the blood stream fast.
Nitrous oxide has nothing to do with Sodium. N2O is nitrogen compound and it is a GAS and it is not injected. Dr Vyas
In the formula for a hydrate, I don't think a subscript asterisk is the proper symbol between the compound and its water component. Isn't the proper symbol a centered dot, like the · you get with ·? Or some more distinctive bullet symbol? Furthermore, I think that using a wiki link on just that symbol is silly, making it look like the symbol is an underlined subscript asterisk. Wouldn't following the formula with something like "(see [[hydrate]])" make more sense? Gene Nygaard 00:44, 15 Dec 2004 (UTC)
It sure would make a lot more sense. By the way, to be more HTML 4.0 compatible, you should use • instead of ·.
[edit] Sodium (English, soda) has long been recognized in compounds...
This is clumsy. Any better offers? Rich Farmbrough 17:39, 10 Jan 2005 (UTC)
[edit] Cost?
Well back then the cost was lower, for certain types of Sodium, but what is the price of Pure, 100%, Sodium today?
[edit] Oxidation number
Isn't the oxidation number of sodium +1? not +2?
- Yes, it is. Duly edited. Pedriana 20:42, May 15, 2005 (UTC)
[edit] Values
someone has put thermal expansion in and in some others too, yet you have not put the starting temp or size of sample or method used (24.221.73.69)
- Values are as referenced by chemical elements data references. Thermal expansion of an isotropic solid is a material property that is adequately described by a single coefficient for a given temperature. The coefficient of linear thermal expansion α=71 µm/(m·K) is a mathematical factor that is independent of the size of sample. Femto 1 July 2005 10:05 (UTC)
[edit] Page looks horrible in IE
Darrien, this is what the page looks like in IE with normal settings now: not good..
- Fixed for now? Since this isn't the only Wikipedia article with an infobox, do we have technical guidelines for the left-aligned-image-flow-around issue? Femto 4 July 2005 11:46 (UTC)
[edit] Minerals of sodium
Sodium chloride, better known as common salt, is the most common compound of sodium, but sodium occurs in many other minerals, such as amphibole, cryolite, halite, soda niter and zeolite
This sentence is a bit misleading since halite is the mineral form of NaCl. Also this sentence implies that NaCl is a mineral on its own. Fornadan (t) 22:26, 7 January 2006 (UTC)
isn't the laten name for sodium nadium? how is it spelled anyway?
- The Latin name for sodium is natrium.
[edit] Insoluble salts?
Are there any (practically) insoluble salts of sodium? If not, why not? --njh 07:32, 17 April 2006 (UTC)
I believe all group 1 salts are soluble
Sodium Metaphosphate is insoluble, but is soluble in mineral acids, Potassium Chloride or Ammonium Chloride solution. As far as other group 1 elements are concerned; Potassium Chlorate and Potassium Perchlorate have low solubility...
From jtbaker.com and my Handbook of Chemistry by Lange the solubilties are:
Potassium Chlorate 3.3g/100g water at 0°, 7g at 20°C, 57g at 100°C
Potassium Perchlorate 0.75g/100g water at 0°, 1.5g at 21°C, 21.8g at 100°C Scot.parker 20:11, 21 September 2006 (UTC)
[edit] NaCl as heat transfer?
"NaCl, a compound of sodium ions and chloride ions, is an important heat transfer material." Is this true? It seems that it wouldn't conduct heat very well unless it was molten, which takes about 800˚C. Perhaps NaCl is being confused with sodium metal. Can anyone confirm this?
- Removed until sourced. Femto 10:55, 14 May 2006 (UTC)
[edit] Use of sodium in organic chemistry
"Sodium in its metallic form is an essential component in the making of esters and in the manufacture of organic compounds."
This is completely incorrect. Sodium (or its alloys) may be used as reducing agents or catalysts, but they are not "essential" in making organic compounds. Esters are made by reacting an alcohol with and acid in the presence of a strong acid; there is no sodium, metallic or as a compound, in esters, nor is it used in their production process. Until someone can come up with a good summary of the use of sodium in organic chemistry, I am removing this sentence. --71.227.190.111 00:52, 28 July 2006 (UTC)
[edit] Not too familar with Wikipedia
But the yellow sodium light emitted from the telescope in the image from the SOR, Starfire Optical Range, is not from a dye laser. I tried to edit the page, it seemed to work at work, but at home I don't see the same edits.
The light source is a FASOR, which stands for Frequency Addition Source of Optical Radiation. It is two single mode, single frequency IR solid state lasers, 1.064 and 1.319 microns that are sum frequency mixed in an LBO crystal within a doubly resonant cavity.
[edit] Repetitive
In the first paragraph the description of sodium is repeated in the second paragragh (now under Notable charactaristics). Also the word 'metal' seems to be overly repeated. For example under 'Notable charactaristics' it says, "Like the other alkali metals, sodium metal is a soft, light-weight, silvery white, reactive metal. Well the rest of the paragragh goes on like that. I would leave the word metal in the expression, 'alkali metal' and remove it every where else in the paragraph. For example from the first paragragh...
Sodium is a chemical element that has been assigned the symbol Na (Natrium in Latin) and the atomic number 11. Sodium is a soft, silvery, very reactive element and is a member of the alkali metals within ‘group 1’ (formally known as ‘group IA’) of the periodic table. Sodium readily oxidizes in air necessitating storage in an inert environment.
Notable Characteristics
Compared with the other alkali metals, sodium is generally more reactive than lithium but less so than potassium in accordance with periodic law; for example, their reaction in water, chlorine gas, etc. Owing to it’s extreme reactivity it is found in nature only as a compound and never as the free element. It burns in air producing sodium oxide and/or sodium peroxide but will not form the nitride as does lithium. The density of Sodium is less than that of water with which it reacts exothermically (produces heat). Small pea sized pieces will swim around the surface of water until they are consumed by it whereas large pieces will explode. The reaction with water produces very caustic sodium hydroxide and highly flammable hydrogen gas. In any case metallic sodium is considered an extreme hazard and will cause severe skin and eye injury if suitable precautions are not observed.
Scot.parker 18:13, 21 September 2006 (UTC)
[edit] All sodium salts without exception are soluble in water?
This statement is not true and needs to be removed.
