LEAD(II) SULFATE - (7446-14-2)

Introduction

Name: lead(II) sulfate
* IUPAC
CAS Number: 7446-14-2
Chemical Formula: PbSO4
Molar Mass: 303.2626 g
Mass Percent: Pb 68.323 %; S 10.573 %; O 21.103 % 

Classification

• inorganic

Uses/Function

• "If a piece of lead is scraped clean and immediately placed in sulfuric acid, it will be attacked and hydrogen will be set free. In a few moments the bright surface becomes covered with lead sulfate and the action ceases. Hence lead is used for containers of sulfuric acid and in storage batteries containing the acid. The resistance of lead to the action of the acid is due in large part to the dense, insoluble, adherent coating of lead sulfate formed on the surface by the immediate attack of the acid. This sulfate forms on storage battery plates during the discharge of the battery and is reduced to lead peroxide and lead when the battery is again charged." 1

Solubility

Ksp:2.53·10-8 2

Bonding

Thermochemistry

ΔHf° (s): -219.87 kcal/mol 3 = -919.94 kJ/mol
S° (s): 35.51 cal/(mol•K) 4 = 148.57 J/(mol•K)
ΔGf° (s): -194.36 kcal/mol 5 = -813.20 kJ/mol

Reactions

 6
 7
 8

For More Information

Sources

(1) - Brownlee, Raymond B., Fuller, Robert W., and Whitsit, Jesse E. Elements of Chemistry; Allyn and Bacon: Boston, Massachusetts, 1959; p 554.
(2) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2002; p 8:119-8:122.
(3) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(4) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(5) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(6) - 3.110704722e+023
(7) - 2.4185931112e+069
(8) - 54787286.006