Testing Hostacor IT as a corrosion inhibitor for iron in polyethylene glycol solutions

Autor:	J.-J. Rameau, Christian Degrigny, V. Argyropoulos, Francis Dalard
Rok vydání:	1999
Předmět:	Materials science Passivation Metallurgy Conservation Polyethylene glycol Electrochemistry Cathodic protection Corrosion Corrosion inhibitor chemistry.chemical_compound chemistry PEG ratio Polarization (electrochemistry) Nuclear chemistry
Zdroj:	Studies in Conservation. 44:49-57
ISSN:	2047-0584 0039-3630
DOI:	10.1179/sic.1999.44.1.49
Popis:	The corrosion inhibitor Hostacor KS1 is used in polyethylene glycol (PEG) solutions to treat waterlogged iron-wood composite artifacts, but the manufacturer has now replaced this product by Hostacor IT. An electrochemical study compares the behaviour of Hostacor KS1 and Hostacor IT in various concentrations and grades of PEG solution. The corrosion potential was measured versus time, and cathodic and anodic polarization experiments were conducted for polished archaeological wrought iron (without corrosion products) in PEG solutions with and without inhibitor(s). The results reveal that both Hostacor KS1 and Hostacor IT spontaneously passivate iron in PEG solutions, by acting as anodic inhibitors that react with dissolved oxygen in the solution, and so prevent the corrosion of iron. The similarity of the electrochemical test results indicates that Hostacor IT is a suitable replacement for Hostacor KS1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62bc1c9cfa2cf34f68535ad3c0a326f6 https://doi.org/10.1179/sic.1999.44.1.49 Zobrazit plný text záznamu