Bismuth is a chemical element with the symbol Bi and atomic number 83. The free element is 86% as dense as lead. It is a brittle metal with a silvery-white color when freshly produced, but surface oxidation can give it an iridescent tinge in numerous colours.   Bismuth is a white, brittle metal with a slight pink color and is typically recovered as a by-product of lead and copper. It is commonly used as an alloying element for various low melting alloys where it is mixed with other metals such as Lead, Tin, or Cadmium. The powder has a purity of 99%. ...