Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

'Copper and Bronze in Art' and the Search for Rare Corrosion Products

Version 1 : Received: 21 March 2021 / Approved: 22 March 2021 / Online: 22 March 2021 (11:50:06 CET)

How to cite: Eggert, G. 'Copper and Bronze in Art' and the Search for Rare Corrosion Products. Preprints 2021, 2021030523 (doi: 10.20944/preprints202103.0523.v1). Eggert, G. 'Copper and Bronze in Art' and the Search for Rare Corrosion Products. Preprints 2021, 2021030523 (doi: 10.20944/preprints202103.0523.v1).

Abstract

Information taken from David A. Scott’s book “Copper and Bronze in Art” was crucial for research on copper corrosion products in Stuttgart. Examples discussed are the nature and variability of ‘Black Spots’ (aka ‘Brown Fuzzies’); cupric hydroxide by cleaning, patination, and pigment synthesis; the wondrous phenomenon of curly malachite; chalconatronite formed by contact to soda glass; the formation of copper formates by glass-induced metal corrosion; and synthesis and X-ray diffraction of basic copper acetates (‘verdigris’).

Subject Areas

basic copper(II) formate; ‘Black Spots’; chalconatronite; copper(II) hydroxide; copper sulfide; curly malachite; namuwite; sodium copper(II) formate; verdigris

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