Research to Prevent Discoloration of Silver Traditional Handicrafts

Wonsub Chung, Byunghyun Shin

Abstract

Why does silver (Ag), which are classified as precious metals such as gold (Au), platinum (Pt), and palladium (Pd), easily discolor in the atmosphere? The reason is that gold, platinum, and palladium do not react well with the discoloration atmosphere to the extent that they exist as metals in nature. However, although silver exists as natural silver, the amount is not large. Most of them exist in nature as silver oxide, silver chloride and silver sulfide. For people to use it, it is much more effective to reduce it to pure metallic silver than silver oxide, silver chloride, and silver sulfide (gloss, electrical and thermal conductivity, workability, etc.), so it is unstable by using reducing agents such as carbon monoxide or hydrogen gas. It is made of metal and used.In this study, as a result of conducting research to prevent discoloration of silver, the following results were obtained.1) If the power of about 1.5v 2nd battery was connected in the air, the discoloration of silver could be prevented by supply of electrons.2) It was possible to prevent discoloration of silver by promoting the electrochemical reaction by contacting aluminum anode, which is a more active metal than silver.

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Paper Citation


in Harvard Style

Chung W. and Shin B. (2020). Research to Prevent Discoloration of Silver Traditional Handicrafts.In Proceedings of the International Conference on Culture Heritage, Education, Sustainable Tourism, and Innovation Technologies - Volume 1: CESIT, ISBN 978-989-758-501-2, pages 135-138. DOI: 10.5220/0010304701350138


in Bibtex Style

@conference{cesit20,
author={Wonsub Chung and Byunghyun Shin},
title={Research to Prevent Discoloration of Silver Traditional Handicrafts},
booktitle={Proceedings of the International Conference on Culture Heritage, Education, Sustainable Tourism, and Innovation Technologies - Volume 1: CESIT,},
year={2020},
pages={135-138},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010304701350138},
isbn={978-989-758-501-2},
}


in EndNote Style

TY - CONF

JO - Proceedings of the International Conference on Culture Heritage, Education, Sustainable Tourism, and Innovation Technologies - Volume 1: CESIT,
TI - Research to Prevent Discoloration of Silver Traditional Handicrafts
SN - 978-989-758-501-2
AU - Chung W.
AU - Shin B.
PY - 2020
SP - 135
EP - 138
DO - 10.5220/0010304701350138