lead dioxide


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lead dioxide

[′led dī′äk‚sīd]
(inorganic chemistry)
PbO2 Poisonous brown crystals that decompose when heated; insoluble in water and alcohol, soluble in glacial acetic acid; used as an oxidizing agent, in electrodes, batteries, matches, and explosives, as a textile mordant, in dye manufacture, and as an analytical reagent. Also known as anhydrous plumbic acid; brown lead oxide; lead peroxide.
References in periodicals archive ?
At the positive plate, sulfate ions and hydrogen ions in the electrolyte, and the free electrons in solution, react with lead dioxide molecules, forming lead sulfate and releasing two water molecules into the electrolyte solution.
The result of these two reactions is an electron deficit (a positive charge) at the lead dioxide plate and an electron excess (a negative charge) at the lead plate.
Urynowicz, "Lead dioxide as an alternative catalyst to platinum in microbial fuel cells," Electrochemistry Communications, vol.
Keywords: Lead dioxide anode, Electrodeposition, Chromium(III).
[12] Carr, J.P., and Hampson, N.A., 1972, "The Lead Dioxide Electrode," Chemical Reviews, 72, pp.
Keywords: Mixed lead dioxide, electro-catalytic activity, co-ions and n-butanol oxidation.
Platinum -- lower than lead dioxide but higher than Ru and Ir oxides
Contract awarded for lead dioxide grde a specn 6810
The investigations suggest that the stability and activity of the lead dioxide anode is influenced by the presence of Ce+3 / Ce+4 ions in the lead dioxide electrodeposits.
Tenders are invited for Supply Of Lead Dioxide Specn:Dynamit Nobel Etc.
Lead Dioxide Specn: Dynamit Nobel 04-749-0012-0004 Revised Jan 87.
Tenders are invited for Lead Dioxide Specn:Dynamit Nobel Qty.