Sulfur mustard. Sulfur mustard, commonly known as mustard gas, is the prototypical substance of the sulfur-based family of cytotoxic and vesicant chemical warfare agents known as the sulfur mustards which have the ability to form large blisters on exposed skin and in the lungs.
Silver jewelry, ornaments, and silverware are traditionally made from Sterling Silver. Sterling Silver is an alloy composed of 92.5% silver and the remainder 7.5% other metals, usually copper. Britannia Silver - Silver that is alloyed with a maximum of 5% other metals.
Â· just now. Report Abuse. Not sure how all of the other answers got into the wrong discussion, but there were no nickels made of pure silver. Most of the nickels were made of 75% copper and 25% nickel except during the WWII years of 1942-1945 when they were made of copper 56%, silver 35%, and manganese 9%.