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Lead has many uses in the construction industry; lead sheets are used as architectural metals in roofing material, cladding, flashing, gutters and gutter joints, roof parapets. [ 224 ] [ 225 ] Lead is still used in statues and sculptures, [ q ] including for armatures . [ 227 ]
The lead usually comes from things like lead-based ink used on the packaging or from ingredients grown in contaminated soil. EasyBuy4u/istockphoto. 4. Spices.
Galena is the main ore of lead, used since ancient times, [6] since lead can be smelted from galena in an ordinary wood fire. [7] Galena typically is found in hydrothermal veins in association with sphalerite, marcasite, chalcopyrite, cerussite, anglesite, dolomite, calcite, quartz, barite, and fluorite.
A lead service line (LSL, also known as lead service pipe, [1] and lead connection pipe [2]) is a pipe made of lead which is used in potable water distribution to connect a water main to a user's premises. Lead exposure is a public health hazard as it causes developmental effects in fetuses, infants, and young children. It also has other health ...
Plant-based protein powders—made from rice, peas or soy—were found to contain triple the amount of lead compared to whey protein powders, which are made from the liquid byproduct of cheese ...
Lead soap was also used as an oil drying agent for paints made with drying oil or air drying paints made with alkyd resins. Lead is often used with cobalt driers. Lead free substitutes have been developed to replace this use of lead in paint. A second basic lead carbonate is known with the formula 6Pb(CO 3)·3Pb(OH) 6 ·PbO. [7]
White lead" is the key ingredient in (now discontinued) lead paints. Ingestion of lead-based paint chips is the most common cause of lead poisoning in children. [7] [8] [9] Both "white lead" and lead acetate have been used in cosmetics throughout history, though this practice has ceased in Western countries. [10]
Tarnished lead (left) and shiny lead (right) Compounds of lead exist with lead in two main oxidation states: +2 and +4. The former is more common. Inorganic lead(IV) compounds are typically strong oxidants or exist only in highly acidic solutions. [1] Red α-PbO and yellow β-PbO The mixed valence oxide Pb 3 O 4 Black PbO 2 which is a strong ...