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Lead Sulfide | PbS | CAS 1314-87-0


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Lead Sulfide is an inorganic compound with the chemical formula PbS. Heeger Materials can provide the best Lead Sulfide (PbS) with a purity of 99.99% and 99.999% in the size of lump and powder at a competitive price. The size can be tailored according to specific requirements.

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Data sheet

Purity99.99%-99.999% (4N-5N)
ProductLead Sulfide

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Lead Sulfide (PbS) is one of the earliest materials to be used as a semiconductor as it tends to crystallize in sodium chloride. Heeger Materials offers a selection of over 100 high-purity products, including metals, metal oxides, and metal salts, with 99.999% purity or higher.

Lead Sulfide | PbS | CAS 1314-87-0

High-purity and ultra-high-purity Lead Sulfide ( PbS) materials are crucial components for the research, development, and production of advanced technologies that require optimum properties, performance, and quality.

  • Chemical formula: PbS
  • Purity: 99.9%-99.999 %
  • EINECS No.: 215-246-6
  • CAS: 1314-87-0
  • Molar mass:239.30 g/mol
  • Appearance: Black
  • Density:7.60 g/cm3
  • Melting point:1,118 °C (2,044 °F; 1,391 K)
  • Boiling point:1,281 °C (2,338 °F; 1,554 K)
  • Solubility in water:2.6×10−11 kg/kg (calculated, at pH=7) 8.6×10−7 kg/kg
  • Solubility product (Ksp):9.04×10−29
  • Magnetic susceptibility (χ):−84.0·10−6 cm3/mol
  • Refractive index (nD):3.91
  • Crystal structure: Halite (cubic), cF8

Lead Sulfide (PbS) Chemical Properties

Chemical Properties

Chemical Formula


Molecular Weight





Lead - 14
Sulfur - 16

Crystal Structure


Symmetry Group


Lattice Constant

5.936 Å

Lead Sulfide (PbS) Electrical Properties

Electrical Properties

Magnetic Susceptibility


Band Gap

0.37 eV

Electron Mobility

600 cm2/Vs

Hole Mobility

600 cm2/Vs

Lead Sulfide (PbS) Thermal Properties

Thermal Properties

Heat of Fusion

72 J/g

Heat of Formation

435 kJ/mol

Thermal Conductivity

2.30 W/mK

Lead Sulfide (PbS) Mechanical Properties

Mechanical Properties


7.61 g/cm3

Melting Point


Mohs Hardness


Lead Sulfide (PbS) Optical Properties

Optical Properties

Refractive Index


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Lead Sulfide (PbS) is carefully packaged in carton boxes with foam protection to minimize damage during storage and transportation and to preserve the quality of our products in their original condition. The vacuum packing is 1kg/bag, 25kg/barrel, or based on specific requirements.

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