Talk:Solubility chart

Solvent Choice

I think it should be emphasised that this is very solvent dependant on this page, and that the solvent being used is Water.Holyone2 (talk) 09:34, 17 December 2011 (UTC)

I've specified in the body of the article that the solvent being used is water. I see no reason anyone would oppose this change. BearGlyph (talk) 20:56, 12 September 2016 (UTC)

Coefficients

The coefficients are the same size as the subscripts, so I really can't tell what's what. However, it's a lot better than when I created this page (I didn't know how to make tables).Ctifumdope

Yeah; unfortunately, you're on your own for that one as I haven't learned how to edit chemical equations yet in the Wiki language. (Plus, I'm not positive I'd get the subscripts right.)Mikeblas 04:04, 30 December 2005 (UTC)

I hope the table is to your liking - I did some colouring in. For simple stuff like the ions you can use ^superscript and _subscript. Al001 06:06, 30 December 2005 (UTC)

Nice work, and thanks for the tips!!1! -- Mikeblas 07:03, 30 December 2005 (UTC)

Thanks

The colors really make the table more easy to read. However, I just noticed that there's a small issue on the first row...and I don't know how to fix it yet (I'm still learning how to edit Wikipedia). The subscripts are a little bit blotted out...Ctifumdope

Unfortunately, it is a browser bug. If you look at the page in IE, the subscripts are truncated as you've notice. In FireFox, they're fine. Maybe there's a workaround. I notie that AI001 quit using the wiki codes for tables and used plain HTML, so perhaps between the two, we can find something that works. Meanwhile, doesn't this article need more content, and some referenes? -- Mikeblas 16:21, 30 December 2005 (UTC)

I wrapped the first instance that used a <sub>script tag, Carbonate, with a <p>aragraph tag to stop the number dropping into the border, forcing the rest of the row to be resized. It's not ideal but I think it fixes the issue with a minimum of disruption to other browsers. Same thing could be done (per <th>) cell on the vertical axis if they're being fouled by the border. (The table looks/ed OK to me now/then - but other users might see differences depending on browser / font settings / <th> markup / other bugs.) Yes, I stopped using the Wikipedia pipe syntax after a while of struggling with it because I thought all the pipes | and I for insoluble would probably be difficult to maintain! Al001 21:57, 31 December 2005 (UTC)

I don't think that there can be more content added. After all, the article is simply about a chart...unless the chart needs explanations.Ctifumdope

Doesn't the soluability change based on temperature and atmosphereic pressure? -- Mikeblas 22:49, 30 December 2005 (UTC)

Thanks for the reminder! Ctifumdope

The table doesn't include Chlorates, Iodides, Sulfides, or Acetates. All would be helpful, and I would argue are equally necissary and important to the ones already listed.(Lewzer99 (talk) 18:09, 24 February 2009 (UTC))

The colours make the page vibrant. Surbhi Saswati Mohanty (talk) 14:05, 2 February 2017 (UTC)

Determining the solubility

This solubility chart is great! However, I'd like to know the chemistry behind it. Why are some compounds soluble and others not? Thanks! 219.75.97.38 15:40, 15 August 2006 (UTC)

New External Link

Found this great external website with solubility chart. Only useful for people who know their common ions. Ctifumdope 22:32, 3 October 2006 (UTC)

• I've removed it, as it doesn't add anything to the article; this is per WP:EL. -- Mikeblas 03:06, 4 October 2006 (UTC)

• It has more ionic combinations than those provided by this current chart here...if somebody could add on that would be better. Otherwise, it would be helpful for those who need more compounds than those provided here...so until somebody adds to this chart, I think it would be wise to keep the link. Ctifumdope 01:44, 5 October 2006 (UTC)

calcium hydroxide solubility

Ca(OH)₂ is insoluble .

• The linked table lists the ratio as 0.173 g of calcium hydroxide in 100 g of water (0.17 %) at 20 degrees Celsius, which I would rate as "slightly soluble". The table really needs a legend on what the cutoff points are - when are compounds considered "soluble", "slightly soluble", or "insoluble". - Mike Rosoft (talk) 10:30, 3 September 2008 (UTC)
• In addition, the table lists Ca(OH)₂ as insoluble, while CaO₂ as slightly soluble. The solubility of calcium oxide in water isn't well defined (it immediately reacts with water to form a hydroxide); if we are to indicate its solubility in any way and don't have a "reacts" option, it should be the same designation as the hydroxide. - Mike Rosoft (talk) 10:44, 3 September 2008 (UTC)

Adding Other Ions

Can the table include more ions such as Barium, Mercury, Lead, Acetate, Oxalate?

A reference like Wikipedia should have a useful and functional chart full of ions. Maybe to save space, ions that always dissolve can be removed and a note can be made to the side, think chlorates and nitrates —Preceding unsigned comment added by 98.110.168.164 (talk) 02:19, 18 May 2011 (UTC)

Speaking of Adding Other Ions, one obvious omission is Tin, but also Gold

What about stannous and stannic salts, tin (II) and tin (IV)? Also gold forms a couple of soluble salts, such as auric chloride and auric cyanide, the latter being the preferred salt to make an electrolyte solution for electroplating and electroforming this precious metal. What kind of science geek wouldn't like to know this if searching under "soluble salts"?
Mykstor (talk) 20:10, 1 May 2014 (UTC)

Does really aluminium oxide react with water?

The table states that Al2O3 shall somehow react with water, which in my opinion contradicts the evidence. Sapphire (or ruby, corundum...) appears to be a very stable mineral. Can anybody check the table for sources? --FDominec (talk) 10:25, 11 January 2017 (UTC)

Should copper(I) be included?

Are copper(I) compounds notable enough to be included in this chart? Though many of the anions listed do not form stable cuprous salts, still there is a decent amount of copper(I) salts. If it is deemed unnecessary to include it within the table, there could at least be a mentioning, perhaps, that most cuprous compounds, most notably copper(I) oxide, are insoluble. (Cuprous bromide appears to be slightly soluble, and cuprous sulfate decomposes.)

On an unrelated side note, now that the X for copper(II) iodide has been replaced with a question mark, there are, as of now, no compounds listed that require the use of the "other" (X) marking. Is it still necessary for this to continue to exist? Ammonium121 (talk) 23:07, 12 February 2023 (UTC)

I've gone ahead and added copper(I) compounds; if cuprous salts are deemed not important enough to be included, or if the information is too lacking, revert. Ammonium121 (talk) 02:02, 19 February 2023 (UTC)

On your concerns listed in the edit summaries here are some replies:

1. I have added elements that had a variety of soluble and insoluble compounds, and the first-row transition metals that were fairly common were added. Thallium is pretty rare, and it is not readily worked with due to its toxicity; however, if you think otherwise, you can add it back.

2. I ordered by first adding group 1, 2, 3 elements, then oxidation state. If elements had the same oxidation state, the element with the lower atomic number was added first. I had added Hg(I) and Ag(I) at the bottom, as it looked more tidy with most of its halides being insoluble.

3. I don't think 'X' is needed anymore, so probably delete. Keres🌕Luna ^edits! 05:15, 26 February 2023 (UTC)

I can see how thallium(I) is pretty rare. When I put it on here I was mainly thinking about how its solubility might be important when analyzing how toxic substances spread. I was also considering chromium(II), but again it's uncommon. How exactly are we to determine which compounds to include here? Ammonium121 (talk) 22:16, 26 February 2023 (UTC)

We could take more ions from this poster: I think only Tl⁺ is in that table and not ours, among cations. (Though maybe Sb³⁺ and Bi³⁺ have an argument to be included, if you're putting in Au³⁺.) As for anions, this would mean adding SiF₆⁻, CrO₄²⁻, IO₃⁻, and SiO₃²⁻. Double sharp (talk) 12:28, 28 October 2023 (UTC)

Slightly Soluble vs. Soluble

There needs to be a quantitative definition on the page as to what "Slightly Soluble" and "Soluble" Mean. After all, even "Soluble" compounds have limits to their solubilities.

The units chosen will make a difference as well. Some options for the units:

• Percent by mass ${\frac {m_{\mathrm {solute} }}{m_{\mathrm {solution} }}}*100$.
• Molarity
• Mass dissolved in 100g of water

The last one is most commonly used, though the other 2 are more useful. The last one is most relatable to the data in Solubility table. 71.169.69.112 (talk) 19:17, 4 April 2023 (UTC)

Key is already listed on the bottom of the pgae. Keres🌕Luna ^edits! 01:13, 20 April 2023 (UTC)