View source for Draft:Sodium bis(carbonato)cuprate(II)

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{{AFC comment|1=Of all three sources in this article, one is a YouTube video made by, presumably, yourself, and one regards the toxicity of copper compounds in general. Please add more reliable and secondary sources for this article (see [[WP:SECONDARY]]). Also, you definitely need to put citations in the preparation section. The first chemical equation is blatantly wrong (how can carbon dioxide and sodium hydroxide be together present in the reaction products?). [[User:Pygos|Pygos]] ([[User talk:Pygos|talk]]) 04:13, 5 December 2024 (UTC)}}

{{AFC comment|1=Of all three sources in this article, one is a YouTube video made by, presumably, yourself, and one regards the toxicity of copper compounds in general. Please add more reliable and secondary sources for this article (see [[WP:SECONDARY]]). Also, you definitely need to put citations in the preparation section. The first chemical equation is blatantly wrong (how can carbon dioxide and sodium hydroxide be together present in the reaction products?). [[User:Pygos|Pygos]] ([[User talk:Pygos|talk]]) 04:13, 5 December 2024 (UTC)}}

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{{Short description|This is an article about the chemical compound sodium bis(carbonato)cuprate(II).}}
{{Draft topics|chemistry}}
{{AfC topic|stem}}

{{Chembox
<!-- Images -->
| ImageFile      = File:Sodium bis(carbonato)cuprate(II) crystals microscope.jpg
| ImageAlt       = <!-- crystals stored under saturated sodium bicarbonate solution-->
| IUPACName      = 
| OtherNames     = Sodium dicarbonatocuprate(II) 

| Section2       = {{Chembox Properties
| Formula        = Na<sub>2</sub>[Cu(CO<sub>3</sub>)<sub>2</sub>] 
| MolarMass      = 229.542 g mol<sup>−1</sup> (anhydrous) 283.587 g/mol<sup>−1</sup> (trihydrate)
| Appearance     = bright blue solid
| Density        = 2.984 g/cm<sup>3</sup> (anhydrous) 2.27 g/cm<sup>3</sup> (trihydrate)
| MeltingPt      = decomposes
| BoilingPt      = 
| Solubility     = 
  }}
| Section3       = {{Chembox Hazards
| MainHazards    = toxic
| FlashPt        = 
| AutoignitionPt = 
  }}
}}

'''Sodium bis(carbonato)cuprate(II)''' is a [[complex compound]] of [[copper]] containing the [[Carbonato ligand|carbonato]] ligand, with the chemical formula Na<sub>2</sub>[Cu(CO<sub>3</sub>)<sub>2</sub>]<ref>{{Cite web |date=2022-03-13 |title=Sodium dicarbonatocuprate(II) |url=https://en.crystalls.info/Sodium_dicarbonatocuprate(II) |access-date=2024-12-02 |website=Crystal growing |language=en}}</ref>. Its [[Hydrate|trihydrate]] is a bright blue solid that occurs naturally as the relatively rare minerals [[chalconatronite]] and [https://www.mindat.org/min-27414.html juangodoyite].  

== Preparation ==
Sodium bis(carbonato)cuprate(II) can be prepared by mixing [[basic copper carbonate]] with saturated solutions of [[sodium bicarbonate]] or [[Sodium carbonate|carbonate]] in [[water]] under heating.{{Citation needed|date=December 2024}} 

<chem>Cu2(OH)2CO3 + 6NaHCO3 -> 2Na2[Cu(CO3)2] + 2NaOH + H2O + CO2</chem><chem>Cu2(OH)2CO3 + 3Na2CO3  ->  2Na2[Cu(CO3)2] + 2NaOH</chem>

The solid complex will slowly crystallize from solution as the trihydrate.

== Properties ==
Sodium bis(carbonato)cuprate(II) is somewhat stable in saturated sodium bicarbonate or carbonate solutions. It rapidly decomposes in pure water, with visible changes in less than a minute.<ref>{{Cite AV media |url=https://www.youtube.com/watch?v=LQanuhSAbj8 |title=Synthesis and crystallization of sodium bis(carbonato)cuprate (II), Na2[Cu(CO3)2]*3H2O |date=2024-06-08 |last=Casperoxide |access-date=2024-12-02 |via=YouTube}}</ref>

Like all other [[:Category:Copper(II) compounds|copper (II)]] compounds, sodium bis(carbonato)cuprate(II) is [[Paramagnetism|paramagnetic]] due to the unpaired electron in its [[Atomic orbital|3''d'' orbital]]. 

== Toxicity ==
It contains copper (II) and is toxic upon ingestion.<ref>{{Cite web |title=Copper Toxicity - Copper Toxicity |url=https://www.msdmanuals.com/professional/nutritional-disorders/mineral-deficiency-and-toxicity/copper-toxicity |access-date=2024-12-02 |website=MSD Manual Professional Edition |language=en}}</ref> Skin contact should be avoided. 

== References ==
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