Search results
Results from the WOW.Com Content Network
Lead(II) nitrate is an inorganic compound with the chemical formula Pb(NO 3) 2. It commonly occurs as a colourless crystal or white powder and, unlike most other lead(II) salts , is soluble in water .
Lead sesquioxide, Pb 2 O 3, which is a lead (II,IV) oxide as well (lead(II) metaplumbate(IV) [Pb 2+][PbO 2− 3]), reddish yellow Pb 12 O 19 , monoclinic, dark-brown or black crystals The so-called black lead oxide , which is a mixture of PbO and fine-powdered Pb metal and used in the production of lead–acid batteries .
For instance, a typical 12 V lead–acid battery has six galvanic cells connected in series, with the anodes composed of lead and cathodes composed of lead dioxide, both immersed in sulfuric acid. Large central office battery rooms – in a telephone exchange to provide power for subscribers' land-line telephones, for instance – may have many ...
The lead-acid battery is a type of rechargeable battery first invented in 1859 by French physicist Gaston Planté. It is the first type of rechargeable battery ever created. Compared to modern rechargeable batteries, lead-acid batteries have relatively low energy density. Despite this, they are able to supply high surge currents.
A secondary cell produces current by reversible chemical reactions (ex. lead-acid battery car battery) and is rechargeable. [citation needed] Lead-acid batteries are used in an automobile to start an engine and to operate the car's electrical accessories when the engine is not running. The alternator, once the car is running, recharges the battery.
Lead(II) oxide is also soluble in alkali hydroxide solutions to form the corresponding plumbite salt. [2] PbO + 2 OH − + H 2 O → Pb(OH) 2− 4. Chlorination of plumbite solutions causes the formation of lead's +4 oxidation state. Pb(OH) 2− 4 + Cl 2 → PbO 2 + 2 Cl − + 2 H 2 O. Lead dioxide is representative of the +4 oxidation state ...
The electrolyte mixture of potassium hydroxide and lithium hydroxide is not consumed in charging or discharging, so unlike a lead-acid battery the electrolyte specific gravity does not indicate state of charge. [7] The voltage required to charge the NiFe battery is equal to or greater than 1.6 volts per cell. [18]
This method will also work with lead(II) carbonate or lead(II) oxide. Pb + H 2 O 2 + 2 H + → Pb 2+ + 2 H 2 O Pb 2+ + 2 AcO − → Pb(OAc) 2. Lead(II) acetate can also be made by dissolving lead(II) oxide in acetic acid: [7] PbO + 2 AcOH → Pb(OAc) 2 + H 2 O. Lead(II) acetate can also be made via a single-displacement reaction between copper ...