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  Encyclopedia of Keywords > Glossaries > Glossary of Chemical Elements > Lead /   Michael Charnine

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  1. Lead is a major constituent of the lead-acid battery used extensively in car batteries. (Web site)
  2. Lead is a poisonous metal that can damage nervous connections (especially in young children) and cause blood and brain disorders.
  3. Lead is used as a coloring element in ceramic glazes, notably in the colors red and yellow. (Web site)
  4. Lead is a dense, relatively soft, malleable metal with low tensile strength. (Web site)
  5. Lead is a chemical element in the periodic table that has the symbol Pb and atomic number 82.


  1. Lead has a face-centered cubic crystalline structure.
  2. Lead resists reaction with cold concentrated sulfuric acid but reacts slowly with hydrochloric acid and readily with nitric acid.
  3. Metallic lead is attacked only superficially by air, forming a thin layer of oxide that protects it from further oxidation.

Lead Poisoning

  1. It was discontinued because of the dangers of lead poisoning.
  2. Outside of occupational hazards, the majority of lead poisoning occurs in children under age twelve.
  3. Many historians have believed that Ludwig van Beethoven suffered from lead poisoning.


  1. Tetraethyl lead, used as a antiknock compound in gasoline, is now banned for environmental reasons in the United States and other countries.
  2. Lead is often used to balance the wheels of a car; this use is being phased out in favor of other materials for environmental reasons.
  3. Cadmium, lead, and mercury are the heavy-metal components most likely to be the target of environmental concerns. (Web site)


  1. A direct link between early lead exposure and extreme learning disability has been confirmed by multiple researchers and child advocacy groups.
  2. Exposure to aerosolized thorium can lead to increased risk of cancers of the lung, pancreas and blood.
  3. Although children are at greater risk from lead exposure, adult exposures can also result in harmful health effects. (Web site)


  1. The canned food on board was sealed in tin cans with lead solder.
  2. The beverage was made in a maple-syrup evaporator that had lead solder joining the interior seams.

Lead Levels

  1. There are also risks of elevated blood lead levels caused by folk remedies like Azarcon which contains 95 percent lead and is used to "cure" empacho.
  2. Uncontaminated soil contains lead concentrations less than 50 ppm but soil lead levels in many urban areas exceed 200 ppm.

High Levels

  1. They found that children who had been exposed to high levels of lead in the womb were more than twice as likely to go on to develop schizophrenia.
  2. Exposure to low levels of lead can permanently affect children. (Web site)
  3. At very high levels, lead poisoning can cause seizures, coma, and even death.


  1. Exposure to lead and lead chemicals can occur through inhalation, ingestion or occasionally dermal contact. (Web site)
  2. Long-term ingestion of arsenic trioxide either in drinking water or as a medical treatment can lead to skin cancer.


  1. Currently lead is usually found in ore with zinc, silver and (most abundantly) copper, and is extracted together with these metals.
  2. In the United States galena (a lead sulfide ore) is mined in southern Missouri, with some ore coming from the western states.
  3. It was often confused with graphite and lead ore. (Web site)


  1. Lead has a dull luster and is a dense, ductile, very soft, highly malleable, bluish-white metal that has poor electrical conductivity.
  2. Lead has a bright luster and is a dense, ductile, very soft, highly malleable, bluish-white metal that has poor electrical conductivity.
  3. The poor metals are aluminium, gallium, indium, tin, thallium, lead, and bismuth, and sometimes included are germanium, antimony and polonium.


  1. The cost has been further lowered in recent years with the phasing out of lead in many processes, including gasoline and paint.
  2. Older houses may still contain substantial amounts of lead paint.
  3. Dust and soil: These can be contaminated with lead from old paint or past emissions of leaded gasoline.
  4. Scraping or sanding lead paint creates large amounts of dust that can poison people in the home.


  1. Chrome yellow, a pigment, consists largely of lead chromate. (Web site)
  2. White lead , 2PbCO 3 ·Pb(OH) 2 (basic lead carbonate), is an important pigment used in paints, putty, and ceramics. (Web site)


  1. Swallowing lead dust or flakes.
  2. Often these traps can create lead dust.


  1. Lead compounds are toxic and have resulted in poisoning of workers from misuse and overexposure. (Web site)
  2. Construction workers involved in painting or paint stripping, plumbing, welding and cutting are also exposed to lead.

When Exposed

  1. A soft, heavy, toxic and malleable poor metal, lead is bluish white when freshly cut but tarnishes to dull gray when exposed to air.
  2. It has a metallic luster, but when exposed to air, it quickly tarnishes with a bluish-gray tinge that resembles lead. (Web site)


  1. Lead has been used by humans for at least 7000 years, because it is widespread, easy to extract and easy to work with.
  2. In humans, lead toxicity often causes the formation of a bluish line along the gums, which is known as the "Burtons's line".
  3. Lead(II) nitrate is toxic and probably carcinogenic to humans. (Web site)


  1. Lead, the heaviest member, portrays a switch from the +IV state to the +II state. (Web site)
  2. Lead also has an oxide that is a hybrid between the II and IV oxidation states.
  3. Chlorination of plumbite solutions causes the formation of lead's IV oxidation state.


  1. Like other lead compounds, it is very poisonous. (Web site)
  2. Lead is poisonous because it interferes with some of the body's basic functions. (Web site)

Red Lead

  1. The use of Siberian red lead as a paint pigment developed rapidly.
  2. Red lead (also called minium) is Pb 3 O 4.
  3. Siberian red lead (crocoite, PrCrO4) is a chromium ore prized as a red pigment for oil paints. (Web site)


  1. About one third of the lead used in the United States is so-called secondary lead, i.e., lead and lead alloys reclaimed chiefly from automobile batteries.
  2. The company stocks nickel cadmium, nickel metal hydride, sealed lead acid, lithium, and alkaline batteries.

Lead Salts

  1. Lead salts used in pottery glazes have on occasion caused poisoning, when acid drinks, such as fruit juices, have leached lead ions out of the glaze.
  2. Long term exposure to lead or its salts (especially soluble salts or the strong oxidant PbO 2) can cause nephropathy, and colic -like abdominal pains.


  1. To treat with lead or a lead compound: leaded gasoline; leaded paint. (Web site)
  2. Garlic and thiamine, a B-complex vitamin, have been used to treat lead poisoning in animals.


  1. They need to be very careful to protect themselves from lead fumes and dust.
  2. Decomposition of Basic Lead Styphnate produces carbon monoxide, nitrogen oxides, and lead fumes.


  1. Lead may also be found in leaded crystal glassware and some imported ceramic or old ceramic dishes (e.g., ceramic dishes from Mexico).
  2. During the manufacturing process, the candied jam was packaged in stoneware or terra cotta ceramic jars that can leach lead.


  1. They live with an adult whose job or hobby involves exposure to lead. (Web site)
  2. Adults can also be exposed during certain hobbies and activities where lead is used. (Web site)

Symbol Pb

  1. Lead's symbol Pb is an abbreviation of its Latin name plumbum.
  2. Unniltrium was used as a temporary systematic element name.[4] Lead Pb The symbol Pb is from Latin name, Plumbum, Latin root of The English, "plumbing".

Lead Used

  1. In the early bronze age lead was used with antimony and arsenic.
  2. Lead acetate (sugar of lead) is used as a mordant, and lead azide, Pb(N 3) 2, is employed as a detonator for explosives.
  3. For example, people who work in factories where lead is used can inhale lead fumes.


  1. Applications Lead is a major constituent of the lead-acid battery used extensively in car batteries. (Web site)
  2. Because lead is very malleable and resistant to corrosion it is extensively used in building construction, e.g.


  1. Cadmium is obtained principally as a byproduct of the smelting and refining of ores of zinc, especially zinc sulfides, and of lead and copper. (Web site)
  2. Most adult exposures are occupational and occur in lead-related industries such as lead smelting, refining, and manufacturing industries. (Web site)


  1. Lead is also employed as protective shielding against X rays and radiation from nuclear reactors.
  2. When this process was repeated several times it provided a protective coat that lead could not pass.


  1. Lead can be toughened by adding a small amount of antimony or other metals to it.
  2. PbO is representative of lead's II oxidation state.
  3. Like mercury, another heavy metal, lead is a potent neurotoxin which accumulates in soft tissues and bone over time.
  4. When heated with nitrates of alkali metals, metallic lead oxidizes to form PbO (also known as litharge), leaving the corresponding alkali nitrite.
  5. Lead-free bismuth compounds are used in cosmetics and in medical procedures.
  6. Books about "Lead" in

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  Short phrases about "Lead"
  Originally created: May 07, 2008.
  Links checked: February 23, 2013.
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