New Silver Leaf – Taiwanese Souvenir

Pure silver has tarnish, hence my silver leaf needs nitrogen protection. To reduce the tarnish, a new silver alloy was developed in my lab. The silver alloy contains 92.5 % silver and has low-tarnish characteristic. As shown in the following picture, a leaf of Taiwan-Wild-Grape was turned into its corresponding new-silver leaf. No tarnish was happened during the last two months in air.