title: Effective one-step gold dissolution using environmentally friendly low-cost reagents.
abstract: Digging for gold: Mixtures of tetraethylthiuram disulfide (Et4TDS) and I2 in acetone are capable of dissolving elemental gold and forming valuable metal complexes, in which the stoichiometry depends on the mixture composition. These mixtures can also etch the gold layer homogeneously and selectively from Si/SiO2/Ti/Au thin-layered structures under mild conditions (see figure).
authors.affiliation: Dipartimento di Scienze Chimiche e Geologiche and Spin Off 3R Metals Ltd, Research Unit of INSTM, Università di Cagliari, SS554, Bivio per Sestu, 09042 Monserrato, Italy. serpe@unica.it
authors.forename: Angela
authors.initials: A
authors.lastname: Serpe
authors.forename: Luciano
authors.initials: L
authors.lastname: Marchiò
authors.forename: Flavia
authors.initials: F
authors.lastname: Artizzu
authors.forename: M Laura
authors.initials: ML
authors.lastname: Mercuri
authors.forename: Paola
authors.initials: P
authors.lastname: Deplano
keywords: chelates; diiodine; etching; gold; iodine; tetraethylthiuram disulfide