Lead a chemical element that has the symbol Pb and atomic number 82 in the periodic table. And is a toxic heavy metals.
Lead exists nature compound lead
Lead exists nature compound lead
sulfide PbS, longer lead of the oldest metals discovered and used throughout history, due to being Mtauaa easy foundries and the degree of low-melting.
The History
Lead is one of the oldest metals used in the history of mankind. He was the one in addition to metals and arsenic Alontimoan which was first piloted in the Bronze Age to Bronze preparation, until the use of tin. Khwarizmi was mentioned in his book Gems and a section devoted to him.
Wallace
Lead is called in Arabic, also known as Abvan. [1] The Alank is: Aloserb. A: Lead citadel, or Aelkezder, or white lead, and was told: black, and was told is: pure it. [2]
Uses
Due to the fact that the lead of non-radioactive heavy elements is used to curb the nuclear radiation and absorption. And use thick insulation lead to radiation sheets.
Intervention Oasis in car batteries industry.
Lead elements of the intervention in a lot of colors and dyes and paints industry.
Enters the Alhessobhhma processors industry for component lead
Lead was one of the key elements in the user's mineral mixture in hot metal typesetting, and was also used in the plumbing, as well as a tool for providing food and drink to the ancient Romans, until 1970, was the lead mixed with iron used in small diameter water pipes [3]
Isotopes of lead
The lead isotopes 206Pb and 207 Pb and 208 Pb heavier atomic nuclei fixed non-radioactive. This stability back to the magic number of 82 protons. Constitute the isotopes of lead this final stage in three of the four decay of radioactive elements chains, so it is available in abundance in the earth's crust compared with other heavy elements such as gold and mercury.
Economic information
Price [
Lead heavy metal with a price many of rotation, is priced in US dollars. During the past ten years the evolution of the price of $ 400 per ton and $ 3,655 per ton.
Because of the toxicity ban the use of lead in doubles countries of the world, which has led to a decline in its price. During the six-month lead price, the price doubled at a rate seven times the original price within four years, until reaching a hard number in the month of October 2007, reaching $ 3,665 per ton, compared to $ 500 per ton in 2003.
Global demand
Rose by 2% per year until 2004.
The History
Lead is one of the oldest metals used in the history of mankind. He was the one in addition to metals and arsenic Alontimoan which was first piloted in the Bronze Age to Bronze preparation, until the use of tin. Khwarizmi was mentioned in his book Gems and a section devoted to him.
Wallace
Lead is called in Arabic, also known as Abvan. [1] The Alank is: Aloserb. A: Lead citadel, or Aelkezder, or white lead, and was told: black, and was told is: pure it. [2]
Uses
Due to the fact that the lead of non-radioactive heavy elements is used to curb the nuclear radiation and absorption. And use thick insulation lead to radiation sheets.
Intervention Oasis in car batteries industry.
Lead elements of the intervention in a lot of colors and dyes and paints industry.
Enters the Alhessobhhma processors industry for component lead
Lead was one of the key elements in the user's mineral mixture in hot metal typesetting, and was also used in the plumbing, as well as a tool for providing food and drink to the ancient Romans, until 1970, was the lead mixed with iron used in small diameter water pipes [3]
Isotopes of lead
The lead isotopes 206Pb and 207 Pb and 208 Pb heavier atomic nuclei fixed non-radioactive. This stability back to the magic number of 82 protons. Constitute the isotopes of lead this final stage in three of the four decay of radioactive elements chains, so it is available in abundance in the earth's crust compared with other heavy elements such as gold and mercury.
Economic information
Price [
Lead heavy metal with a price many of rotation, is priced in US dollars. During the past ten years the evolution of the price of $ 400 per ton and $ 3,655 per ton.
Because of the toxicity ban the use of lead in doubles countries of the world, which has led to a decline in its price. During the six-month lead price, the price doubled at a rate seven times the original price within four years, until reaching a hard number in the month of October 2007, reaching $ 3,665 per ton, compared to $ 500 per ton in 2003.
Global demand
Rose by 2% per year until 2004.
