Period 6 element "The Poisoner's Poison" and "Inheritance Powder" (alongside arsenic). Lead is a main-group element in the carbon group with the symbol Pb (from ) and atomic number 82. Lead is a soft, malleable other metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed to air. Lead has a shiny chrome-silver luster when it is melted into a liquid. Lead is used in building construction, lead-acid batteries, bullets and shots, weights, as part of solders, pewters, fusible alloys and
Sopormetal Sopormetal Sopormetal International Group was founded on February 2, 1985. It began as a Portuguese company supplying brazing materials, silver and copper brazing solders. SOPORMETAL is a producer of brazing materials such as silver solders, copper/phosphorus, soft solders and fluxes. Cadmium-free silver solder, special alloys and tri-metal alloys for the entire industry, as well as several special alloys in the form of rod, strips, rings and various preforms. Coated silver solders with different ratios having regard the technology used for brazing and fusion technical parameters. Copper phosphorus alloys with and without silver for all sectors, as well with different types