Difference between revisions of "Copper oxalate"

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[[File:Mooloite.jpg|thumb|Copper oxalate crystals under black lichen on copper ore<br> Image credit: [Link]]]
 
== Description ==
 
== Description ==
  
A rare light blue corrosion product that was found in the patina of the horses of San Marco in Venice.
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Light blue crystals formed by [[oxalic acid]] interaction with metallic [[copper]].  It has been identified as a corrosion product in the patina of the horses of San Marco in Venice (Rosetti and Marabelli 1976).  Copper oxalate has also been found in formation of lichens and fungi.
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== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
copper(II) oxalate
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copper(II) oxalate; moolooite
  
 
==Risks==
 
==Risks==
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==Physical and Chemical Properties==
 
==Physical and Chemical Properties==
{| class="wikitable"
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* Composition = Cu(C<sub>2</sub>O<sub>4</sub>)·H<sub>2</sub>O
|-
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* Insoluble in water
! scope="row"| Composition
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* Melting point = 310 C
| Cu(COO)2
 
|}
 
  
 
==Resources and Citations==
 
==Resources and Citations==
  
 
* V. Alumno-Rosetti, M. Marabelli. 'Analysis of the Patina of a Gilded Horse of the St. Mark's Basilica in Venice: Corrosion Mechanism and Conservation Problems". Studies in Conservation 12(4):161-70, 1976.
 
* V. Alumno-Rosetti, M. Marabelli. 'Analysis of the Patina of a Gilded Horse of the St. Mark's Basilica in Venice: Corrosion Mechanism and Conservation Problems". Studies in Conservation 12(4):161-70, 1976.
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* Wikipedia: [https://en.wikipedia.org/wiki/Copper_oxalate Copper oxalate] Accessed Dec 2022
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* Frank-Kamenetskaya OV, Zelenskaya MS, Izatulina AR, Vereshchagin OS, Vlasov DY, Himelbrant DE, Pankin DV. Copper oxalate formation by lichens and fungi. Sci Rep. 2021 Dec 20;11(1):24239 [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8688476/ Link]
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Revision as of 13:04, 7 December 2022

Copper oxalate crystals under black lichen on copper ore
Image credit: [Link]

Description

Light blue crystals formed by Oxalic acid interaction with metallic Copper. It has been identified as a corrosion product in the patina of the horses of San Marco in Venice (Rosetti and Marabelli 1976). Copper oxalate has also been found in formation of lichens and fungi.

Synonyms and Related Terms

copper(II) oxalate; moolooite

Risks

  • CDH Fine Chemicals: SDS

Physical and Chemical Properties

  • Composition = Cu(C2O4)·H2O
  • Insoluble in water
  • Melting point = 310 C

Resources and Citations

  • V. Alumno-Rosetti, M. Marabelli. 'Analysis of the Patina of a Gilded Horse of the St. Mark's Basilica in Venice: Corrosion Mechanism and Conservation Problems". Studies in Conservation 12(4):161-70, 1976.
  • Frank-Kamenetskaya OV, Zelenskaya MS, Izatulina AR, Vereshchagin OS, Vlasov DY, Himelbrant DE, Pankin DV. Copper oxalate formation by lichens and fungi. Sci Rep. 2021 Dec 20;11(1):24239 Link

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