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.
What is nickel silver? Nickel silver is an alloy made from 50 to 80 percent copper, 5 to 30 percent nickel, and 10 to 35 percent zinc. Although it is silvery in appearance, it is non-precious and contains no silver.