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Lead sulfate PbSO

Tetrabasic Lead Sulfate. Tetrabasic lead sulfate [12065-90-6] 4PbO PbSO, mol wt 1196.12, sp gr 8.15, is made by fusion of stoichiometric quantities of Htharge (PbO) and lead sulfate (PbSO heat of formation, Ai/ = — 1814 kJ/mol (—434.1 kcal/mol). Alternatively, tetrabasic lead sulfate may be prepared by boiling the components in aqueous suspensions. At about 70°C, tribasic hydrate reacts with lead oxide to form tetrabasic sulfate. At 80°C, this transformation is complete in - 20 hours. Tetrabasic lead sulfate is used in limited quantities in Europe as a PVC stabilizer. However, in the United States, lead-acid batteries have been developed by BeU Telephone Laboratories, which contain tetrabasic lead sulfate. Such batteries are used for emergency power at telephone switchboard stations and have an anticipated service life of over 50 years. [Pg.70]

What weight of 3.00% hydrogen peroxide solution would be required to oxidize LOO g of lead sulfide, PbS, to lead sulfate, PbSO ... [Pg.280]

Lead sulfate, PbSO, is a white, nearly insoluble substance. Its precipitation is used as a test for either lead ion or sulfate ion in analytical chemistry. [Pg.504]

The lead chromate yellows are based on solid solutions of lead chromate (PbCrO ) and lead sulfate (PbSO ). The higher the amount of PbS04, the lighter the yellow. [Pg.1273]

Lead Sulfate—PbSO<—303.9—is formed by the action of hot, concentrated HaS04 on Pb or by double decomposition between a sulfate and a Pb salt in solution. It is a white powder, almost insoluble in HaO, soluble in concentrated HaS04, from which it is deposited by dilution. [Pg.166]

The lead-acid automobile battery is the most familiar secondary battery. As this battery is discharged, metallic lead is oxidized to lead sulfate at the anode, and the Pb + in lead dioxide (PbO ) is reduced at the cathode to the Pb in lead sulfate (PbSO ). The reaction takes place in the presence of sulfuric acid (battery acid), and the equations for the reactions are... [Pg.213]

The reactants compounds lead (Pb), lead sulfate (PbSO J, and lead dioxide (PbOj) are well-defined chemical compounds, and there are no intermediate states of oxidation. As a consequence, any voltage above the open circuit voltage results in complete charge, and equalizing charges are not required when the battery is used under continual charging in standby applications. [Pg.154]

The carbonates, sulfates, nitrates, and haUdes of lead (except the yeUow iodide) are colodess. Bivalent lead forms a soluble nitrate, chlorate, and acetate a slightly soluble chloride and an insoluble sulfate, carbonate, chromate, phosphate, molybdate, and sulfide. Highly crystalline basic lead salts of both anhydrous and hydrated types are readily formed. Tetrabasic lead sulfate [52732-72-6] 4PbO PbSO, and the hydrated tribasic salt [12397-06-7] ... [Pg.67]

Tribasic Lead Sulfate. Tribasic lead sulfate [12202-17 ] 3PbO PbSO 2 hue white powder, mol wt 890.93, sp gr 6.9, refractive... [Pg.70]

At the cathode, or positive electrode, lead dioxide [1309-60-0] Pb02, reacts with sulfuric acid to form lead sulfate [7446-14-2] PbSO, and water in the discharging reaction... [Pg.572]

Lead compounds were not found on the surrounding activated coating layer, rather only associated with the precious metal. The Pt sites are less poisoned by lead than are Pd or Rh sites because the Pt sites are protected by the sulfur in the fuel. Fuel sulfur is converted to SO2 in the combustion process, and Pt easily oxidizes SO2 to SO on the catalyst site. The SO reacts with the lead compounds to form PbSO, which then moves off the catalyst site so that lead sulfate is not a severe catalyst poison. Neither Pd nor Rh is as active for the SO2 to SO reaction, and therefore do not enjoy the same protection as Pt. [Pg.489]

Each of these reactions produces the insoluble substance PbSO, lead sulfate, which adheres to the plates. As the cell is discharged sulfuric acid is removed from the electrolyte, which decreases in density. The state of charge or discharge of the cell can accordingly be determined with use of a hydrometer, by measuring the density of the electrolyte (Fig. 2-13). [Pg.314]

Lead Sulphate—PbSO—302.9—is formed by the action of hot, concentrated on Pb or by double decomposition between a sulfate... [Pg.132]

Synonyms White lead, sublimed White lead sulfate Empirical OsPbjS Formula PbSO, PbO... [Pg.1175]

Lead(II) sulfate PbSO 2.53 10- Silver(I) cyanide AgCN 5.97 10-33... [Pg.1080]

Acute lead-poisoning is of by no means as common occurrence as the chronic form, and usually terminates in recovery. It is caused by the ingestion of a single large dose of the acetate, sub-acetate, carbonate, or of red lead. In such cases the administration of magnesium sulfate is indicated it enters into double decomposition with the Pb salt to form the insoluble PbSO. ... [Pg.168]

See other pages where Lead sulfate PbSO is mentioned: [Pg.69]    [Pg.1273]    [Pg.161]    [Pg.196]    [Pg.475]    [Pg.69]    [Pg.1273]    [Pg.161]    [Pg.196]    [Pg.475]    [Pg.551]    [Pg.70]    [Pg.50]    [Pg.14]    [Pg.576]    [Pg.314]    [Pg.769]    [Pg.2019]    [Pg.761]    [Pg.1965]    [Pg.2185]    [Pg.45]    [Pg.45]    [Pg.252]    [Pg.743]    [Pg.1842]    [Pg.857]    [Pg.2140]    [Pg.807]    [Pg.855]    [Pg.2214]    [Pg.760]    [Pg.1962]    [Pg.578]    [Pg.199]    [Pg.569]   
See also in sourсe #XX -- [ Pg.4 ]

See also in sourсe #XX -- [ Pg.4 , Pg.170 , Pg.193 ]



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Lead sulfate

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