Overview of Lead(II) Sulfide (PbS) Powder and Piece
Lead(II) sulfide, commonly known as galena, is a chemical compound composed of lead and sulfur, with lead in its +2 oxidation state. It occurs naturally as a major ore of lead and is characterized by its cubic crystal structure. PbS can be found both in powdered form, which is finely ground, and as solid pieces or crystals.
Features of Lead(II) Sulfide (PbS) Powder and Piece
Physical Appearance: Naturally, PbS appears as a lustrous, dark gray to black solid with a metallic sheen in its crystalline form. The powder form is a fine, dark gray-black substance.
Crystal Structure: PbS has a cubic crystalline structure, specifically a face-centered cubic (FCC) lattice, which contributes to its distinctive physical properties.
Semiconductor Properties: PbS is a narrow-bandgap semiconductor, with a direct bandgap of approximately 0.3 eV, making it responsive to infrared radiation and useful in optoelectronic applications.
High Density: Lead sulfide has a high density, typical of lead compounds, which is around 7.6 g/cm³.
Chemical Stability: PbS is stable under normal conditions but can be reactive with strong oxidizers. It is insoluble in water but soluble in hot, concentrated acids.
Parameters of Lead(II) Sulfide (PbS) Powder and Piece
Certificate of Analysis
Product
Purity
Specification
Net weight (kg)
Lead II sulfide PbS Powder and Piece
99.9%-99.999%
Impurity Content (ppm)
Element
Guarantee Value(max)
Cu
5
Mg
10
Ag
5
Ni
10
Zn
5
Fe
10
Al
10
As
5
Cd
5
Cr
10
Applications of Lead(II) Sulfide (PbS) Powder and Piece
Infrared Detectors: Due to its sensitivity to infrared light, PbS is used in infrared detectors and photodetectors for various applications, including night vision equipment and thermal imaging.
Solar Cells: PbS-based solar cells are being researched for their potential in harvesting a broader spectrum of sunlight, particularly in the near-infrared region.
Optoelectronics: Its semiconducting properties make PbS suitable for use in optoelectronic devices like LEDs and lasers operating in the infrared spectrum.
Catalysis: PbS can act as a catalyst in certain chemical reactions, especially those involving sulfur chemistry.
Pigment and Glass Manufacturing: Historically, PbS was used as a black pigment in paints and glass manufacturing, although its use has been restricted due to lead toxicity concerns.
Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
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Storage conditions 1) Store in a dry environment at room temperature. 2) Avoid damp and high temperature. 3) Use immediately after opening the inner packing bag.
FAQs of Lead(II) Sulfide (PbS) Powder and Piece
Is Lead(II) Sulfide toxic?
Yes, like all lead compounds, PbS is toxic and should be handled with care to avoid ingestion or inhalation. It is classified as hazardous due to lead's toxicity.
Can Lead Sulfide be used in modern electronics?
Yes, PbS finds application in modern electronics, particularly in infrared sensors and detectors, though its use is regulated due to environmental and health concerns.
Is PbS soluble in water?
No, PbS is practically insoluble in water, which contributes to its stability in certain applications and environments.
What is the bandgap of Lead(II) Sulfide?
The bandgap of PbS is around 0.3 eV, which falls in the infrared region of the electromagnetic spectrum.
How is Lead(II) Sulfide synthesized?
PbS can be synthesized through various methods, including the reaction of lead salts with hydrogen sulfide or sodium sulfide solutions, or via chemical vapor deposition techniques.
