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 White Gold Really Is. White gold is not just a different kind of gold. It is actually made from yellow gold mixed with a white metal such as palladium or nickel. Usually, when the resulting alloy is used to make jewelry, it is covered with rhodium to give it an even whiter appearance.