LEAD HYDROXIDE
- CAS NO.:1311-11-1
- Empirical Formula: H2O2Pb
- Molecular Weight: 241.21
- MDL number: MFCD00067512
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-19 17:35:41
What is LEAD HYDROXIDE?
Chemical properties
white powder(s) [CRC10]
Physical properties
White amorphous powder; density 7.41 g/cm3; dehydrates above 130°C and decomposes at 145°C; slightly soluble in water, 155 mg/L at 20°C; KSP 1.42x10-20 at 25°C; soluble in dilute acids and alkalies; insoluble in acetone and acetic acid.
The Uses of LEAD HYDROXIDE
Lead hydroxide is used in making porous glass; in electrical-insulating paper; in electrolytes in sealed nickel-cadmium batteries; in recovery of uranium from seawater; and as a catalyst for oxidation of cyclododecanol.
Preparation
Lead dioxide is produced by oxidizing an alkaline slurry of lead monoxide with chlorine, sodium hypochlorite, or bleaching powder. Alternatively, it is obtained by passing chlorine into a hot aqueous suspension of lead sulfate and magnesium hydroxide. The ionic reaction is:
Pb(OH)3ˉ +ClOˉ → PbO2 + Clˉ+ OHˉ + H2O
It also is produced by electrolysis of acidic solutions of lead salts using a lead or platinum electrode. In such electrolytic process, lead dioxide is deposited on the anode of the cell.
Insoluble powdered lead dioxide also may be obtained when lead tetroxide is heated with nitric acid:
Pb3 O4 + 4HNO3 → 2Pb(N)3)2 + PbO2 + 2H2O
Lead dioxide also can be prepared by fusing lead monoxide with a mixture of sodium nitrate and sodium chlorate.
Properties of LEAD HYDROXIDE
Density | 7.41 |
solubility | insoluble in H2O; soluble in dilute acid solutions |
form | powder |
color | white |
Water Solubility | insoluble H2O; soluble dilute acid [CRC10] |
Solubility Product Constant (Ksp) | pKsp: 14.84 |
Safety information for LEAD HYDROXIDE
Computed Descriptors for LEAD HYDROXIDE
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