!!!! Iron oxalates

==== Wikipedia

https://en.wikipedia.org/wiki/Ferric_oxalate @@ https://en.wikipedia.org/wiki/Ferric_oxalate
https://en.wikipedia.org/wiki/Iron(II)_oxalate @@ https://en.wikipedia.org/wiki/Iron(II)_oxalate

==== References

https://www.google.com.br/search?q=iron+iii+oxalate+solubility&oq=iron(II)+oxalate+solub&aqs=chrome.2.69i57j0l2.10041j0j7&client=ubuntu&sourceid=chrome&ie=UTF-8 @@ https://www.google.com.br/search?q=iron+iii+oxalate+solubility&oq=iron(II)+oxalate+solub&aqs=chrome.2.69i57j0l2.10041j0j7&client=ubuntu&sourceid=chrome&ie=UTF-8
https://pubs.acs.org/doi/abs/10.1021/cm5043149 @@ https://pubs.acs.org/doi/abs/10.1021/cm5043149
https://www.bostick-sullivan.com/articles/ferriccoalate.html @@ https://www.bostick-sullivan.com/articles/ferriccoalate.html
https://pubchem.ncbi.nlm.nih.gov/compound/57370413#section=Top @@ https://pubchem.ncbi.nlm.nih.gov/compound/57370413#section=Top
https://link.springer.com/article/10.1007%2FBF00377723 @@ https://link.springer.com/article/10.1007%2FBF00377723
https://pubs.acs.org/doi/abs/10.1021/ja901093b @@ https://pubs.acs.org/doi/abs/10.1021/ja901093b
https://pubs.acs.org/doi/abs/10.1021/ic950703v @@ https://pubs.acs.org/doi/abs/10.1021/ic950703v
https://pubs.acs.org/doi/abs/10.1021/ic50036a013?journalCode=inocaj @@ https://pubs.acs.org/doi/abs/10.1021/ic50036a013?journalCode=inocaj
https://www.sciencedirect.com/science/article/abs/pii/S0022286097003906 @@ https://www.sciencedirect.com/science/article/abs/pii/S0022286097003906
https://pubs.acs.org/doi/abs/10.1021/jp110326m @@ https://pubs.acs.org/doi/abs/10.1021/jp110326m
https://pubs.acs.org/doi/abs/10.1021/jp205834m @@ https://pubs.acs.org/doi/abs/10.1021/jp205834m
https://pubs.rsc.org/en/content/articlehtml/1997/dt/a704400c @@ https://pubs.rsc.org/en/content/articlehtml/1997/dt/a704400c
https://pubs.acs.org/doi/abs/10.1021/ac60018a019?journalCode=ancham @@ https://pubs.acs.org/doi/abs/10.1021/ac60018a019?journalCode=ancham