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.
A lustrous, soft white metal, silver is one of the elements that make up the Earth. Silver is found in nature as an elemental metal in its metallic form and combined with other elements such as sulfide, chloride and nitrate. Pure silver has a bright metallic white-gray color; silver nitrate and silver chloride are powdery white in color, while silver sulfide and silver oxide are dark gray to black.