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.
Sterling silver is a silver alloy containing 92.5 percent silver and 7.5 percent copper. Pure silver is too soft for functional objects, so metalworkers produce silver alloys; the most popular alloy for silver jewelry and dishware is sterling.terling silver is a silver alloy containing 92.5 percent silver and 7.5 percent copper. Pure silver is too soft for functional objects, so metalworkers produce silver alloys; the most popular alloy for silver jewelry and dishware is sterling.