Lead Oxide

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Lead(II) oxide - Wikipedia, the free encyclopedia
Plumbous oxide, lead monoxide, massicot, litharge. Identifiers. CAS number. 1317-36-8 ... Lead(II) oxide is the chemical compound with the formula Pb O. Lead ...
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Lead oxide - Wikipedia, the free encyclopedia
Lead oxide. From Wikipedia, the free encyclopedia. Jump to: navigation, search ... The so-called black lead oxide, which is a mixture of PbO and fine-powdered ...
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Lead Oxide,Lead Sub Oxide,lead oxide supplier,lead powder,Grey Oxide ...
Lead is seldom found uncombined in nature, it is mostly found in the form of Lead Oxides. ... Lead Sub-Oxide, also commercially known as Grey Oxide / LSO is ...
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{{Chembox new| ImageFile =| ImageSize = 100px| IUPACName = Lead(II) oxide, massicot) of lead| OtherNames = Plumbous oxide| Section1 = {{Chembox Identifiers| CASNo = 1317-36-8| PubChem =| SMILES =

--> | Section2 = {{Chembox Properties| Formula = PbO| MolarMass = 223.20| Appearance = red or yellow solid| Density =| MeltingPt = 888 °C| BoilingPt =| Solubility = --> | Section3 = {{Chembox Hazards| MainHazards = toxic| FlashPt =| Autoignition = --> -->

Lead(II) oxide, is the chemical compound with the chemical formula leadoxide Also known as litharge, this compound exists in both rhombic and yellow (orthorhombic) forms, which are red and yellow, respectively. The yellow form is known as massicot.Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.

Preparation and structure PbO is prepared by heating lead metal in air at 600 C. Alternatively, it is obtained by the thermal decomposition of lead(II) nitrate or lead carbonate: 2Pb(NO3)2) → 2PbO + 4NO2 + O2 PbCO3 → PbO + CO2

The structure of the solid, determined by X-ray crystallography, reveals a pyramidal four-coordinate Pb center. The pyramidal nature indicates the presence of a stereochemically active lone pair of electrons.Wells, A.F. (1984) Structural Inorganic Chemistry, Oxford: Clarendon Press. ISBN 0-19-855370-6.

Reactions The red and yellow forms of this material are related by a small change in enthalpy:PbO(red) → PbO(yellow) ΔH = 1.6 kJ/mol

PbO is amphoteric, which means that it reacts with both acids and with bases. With acids, it forms salts of Pb2+ via the intermediacy of oxo cluster chemistrys such as 4+. With strong base, PbO dissolves to form plumbite(II) salts:PbO + H2O + OH- → -

Applications PbO is a component of lead paint and in lead glass, as well as in vulcanization of rubber. A mixture with glycerine sets to a hard, waterproof cement that has been used to join the flat glass sides and bottoms of aquarium. PbO is used in certain condensation reactions in organic synthesis.“1,4-Diphenylbutadiene” Corson, B. B. Organic Syntheses, Coll. Vol. 2, p.229 (1943). http://www.orgsyn.org/orgsyn/pdfs/CV2P0229.pdf.

PbO is used in cathode ray tube glass to block X-ray emission, but mainly in the neck and funnel because it can cause discoloration when used in the faceplate. Strontium oxide is preferred for the faceplate.

References External links

Case Studies in Environmental Medicine - Lead Toxicity
ToxFAQs™: Lead
National Pollutant Inventory - Lead and Lead Compounds Fact Sheet

Lead oxide - Wikipedia, the free encyclopedia
Lead oxide may refer to: Lead(II) oxide, PbO, litharge, massicot; Lead(II,II,IV) oxide, Pb 3 O 4, minium, red lead; Lead dioxide (lead(IV) oxide), PbO 2

Lead(II) oxide - Wikipedia, the free encyclopedia
Lead(II) oxide is the chemical compound with the formula Pb O. Lead(II) oxide occurs in two forms: red, having a tetragonal crystal structure and yellow, having an orthorhombic ...

Definition: lead monoxide from Online Medical Dictionary
The Online Medical Dictionary is a searchable dictionary of definitions from medicine, science and technology.

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Safety (MSDS) data for lead oxide, red
Safety (MSDS) data for lead oxide, red ... Glossary of terms on this data sheet. The information on this web page is provided to help you to work safely, but it is intended to be ...

Chemical Safety Data: Lead (II) oxide
Chemical Safety Data: Lead (II) oxide ... Common synonyms: Lead oxide, lead monoxide, litharge, plumbous oxide: Formula

MINIUM (Lead Oxide)
Chemical Formula: Pb3O4, Lead Oxide * Class: Oxides and Hydroxides * Group: Spinel * Uses: As a minor ore of lead, a pigment and as mineral specimens.

PLATTNERITE (Lead Oxide)
Chemistry: PbO2, Lead Oxide * Class: Oxides and Hydroxides * Group: Rutile * Uses: A very minor ore of lead and as mineral specimens. * Specimens

Red Lead Oxide, Yellow Lead Oxide, Litharge, Tribasic Lead Sulfate ...
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Lead oxide - Hutchinson encyclopedia article about Lead oxide
Yellow or red solid, an amphoteric oxide (one that reacts with both acids and bases). The other oxides of lead are the brown solid lead(IV) oxide (PbO 2) and red lead (Pb 3 O 4).