Characterization of a new efflorescence salt on calcareous historic objects stored in wood cabinets: Ca2(CH3COO)(HCOO)(NO3)2·4H2O
Source abstract
Abstract
Abstract White efflorescence crystals grown on the surfaces of a bronze bowl, classical ceramic and ancient wine jugs were investigated. X-ray powder diffraction (XRPD) revealed that in each case an identical, hitherto unknown phase was formed. The crystal structure was solved from high resolution XRPD measurements and revealed a phase composition of Ca 2 (CH 3 COO)(HCOO)(NO 3 ) 2 ·4H 2 O, which is in accordance with the complementary analysis. The overall structural motif of Ca 2 (CH 3 COO)(HCOO)(NO 3 ) 2 ·4H 2 O, one dimensional calcium carboxylate zig zag chains in which acetate and formate ions are arranged in an alternating fashion, is closely related to other naturally occurring or artificial efflorescence salts like thecotrichite or calclacite.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Cultural Heritage Materials Analysis · Building materials and conservation · X-ray Diffraction in Crystallography
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
Show source-provided references
1. Acetic and formic acids emitted from wood samples and their effect on selected materials in museum environments10.1016/j.corsci.2009.08.054 ↗
2. The corrosion of shells in cabinets10.5962/p.405586 ↗
3. On the crystallography of calclacite, Ca(CH3COO)Cl. 5H2O10.1107/S0365110X58002000 ↗
4. Salt efflorescence on pottery in the Athenian Agora: a closer look10.1179/2047058413Y.0000000113 ↗
5. New powder diffraction data on calclacite (CaClC2H3O2·5H2O), Neues Jahrb
6. La struttura cristallina della calclacite/Crystalline structure of a triclinic phase of the compound corresponding to calclacite, Ca(CH3COO)Cl.5H2O
7. Efflorescence X? case solved: ca3(CH3COO)3Cl(NO3)2·6H2O! the research history, identification, and crystal structure of thecotrichite
8. Crystal structure of thecotrichite, an efflorescent salt on calcareous objects stored in wooden cabinets10.1021/acs.cgd.5b00197 ↗
9. Comparative study of the polymorphic species of strontium and calcium formates I. Differential thermal analysis (DTA)10.1016/0022-4596(74)90076-0 ↗
10. Comparative study of the polymorphic species of strontium and calcium formates. II. X-Ray diffraction10.1016/0022-4596(74)90077-2 ↗
11. Varieties of anhydrous calcium acetate
12. The deterioration of Mollusca collections: identification of shell efflorescence10.1179/sic.1985.30.2.73 ↗
13. Structure of calcium acetate monohydrate, Ca(C2H3O2)2. H2O10.1107/S0108270184002985 ↗
14. Structure of a second polymorph of calcium acetate monohydrate10.1107/S0108270187089601 ↗
15. Calcium complexes of mixed ligands: ca2(acetate)4(HOH)2 and Ca1.5(salicylate)2(acetate)(HOH)2(acetic acid)10.1016/S0020-1693(00)90724-2 ↗
16. Nature of calcium acetate10.1021/je60012a040 ↗
17. Solubilities of magnesium, calcium, barium, cobalt, nickel, copper, and zinc acetates in water fromT = (278.15–348.15) K10.1006/jcht.1999.0548 ↗
18. The mode of formation of thecotrichite, a widespread calcium acetate chloride nitrate efflorescence10.1179/sic.2005.50.4.284 ↗
19. Dicalcium triacetate nitrate dihydrate10.1107/S0108270198012864 ↗
20. Preserving the story of restored objects: combining technical data with historic sources
21. Weeping glass the identification of ionic species on the surface of vessel glass using ion chromatography
22. 2017
23. Indexing of powder diffraction patterns by iterative use of singular value decomposition10.1107/S0021889802019878 ↗
24. Ab-initio structure determination of LiSbWO6 by X-ray powder diffraction10.1016/0025-5408(88)90019-0 ↗
25. Fundamental parameters line profile fitting in laboratory diffractometers10.6028/jres.109.002 ↗
26. Whole-profile structure solution from powder diffraction data using simulated annealing10.1107/S002188980000248X ↗
27. FOX: modular approach to crystal structure determination from powder diffraction10.4028/www.scientific.net/MSF.443-444.35 ↗
28. A profile refinement method for nuclear and magnetic structures10.1107/S0021889869006558 ↗
29. 2016
30. Raman spectrum of calcium formate10.1002/jrs.1250010603 ↗
31. Study of the bands attributable to crystallization water in hydrated metal acetates10.1016/0584-8539(81)80092-X ↗
32. Thermal behavior of metal carboxylates: III-metal acetates10.1016/0584-8539(82)80176-1 ↗
33. Vibrations and reorientations of H2O molecules and NO3- anions in Ca(H2O)4(NO3)2 studied by incoherent inelastic neutron scattering, Raman light scattering, and infrared absorption spectroscopy10.1063/1.3202767 ↗
34. Aqueous divalent metal?nitrate interactions: hydration versus ion pairing10.1039/b807090n ↗
35. 812. The vibration spectra of some substituted acetate ions10.1039/jr9640004217 ↗
36. Ni3Cl2 + x(OH)4-x·2H2O: structural, thermal, spectral, and magnetic properties in dependence of the chloride content10.1002/ejic.201600074 ↗
37. Thermal decomposition of nickel nitrate hexahydrate, Ni(NO3)2·6H2O, in comparison to Co(NO3)2·6H2O and Ca(NO3)2·4H2O10.1016/j.tca.2007.01.031 ↗
38. A spectroscopic study of the mineral paceite (calcium acetate)10.1016/j.saa.2006.07.045 ↗
39. Study on thermal decomposition of copper(II) acetate monohydrate in air10.1007/s10973-011-1454-4 ↗
40. Calcium formate Ca(HCOO)2 (neutron)
41. The structures of calcium formate é-Ca(HCOO)2 and β-Ca(HCOO)2, and the tetragonal mixed crystals Ca(HCOO)2?Sr(HCOO)210.1107/S056774088000533X ↗
42. Solid-State structure of a degradation product frequently observed on historic metal objects10.1021/ic5027637 ↗
43. No title
44. Iron corrosion in archaeological context: structural refinement of the ferrous hydroxychloride β-Fe2(OH)3Cl10.1016/j.corsci.2015.08.035 ↗
45. Microstructural characterization of carbon steel corrosion in clay borehole water under anoxic and transient acidic conditions10.1016/j.corsci.2016.03.022 ↗
46. Study of the influence of physical, chemical and biological conditions that influence the deterioration and protection of Underwater Cultural Heritage10.1016/j.scitotenv.2017.09.007 ↗