Cadmium sulfide
Cadmium sulfide (CdS), CAS 1306-23-6, is a yellow to orange inorganic compound with the chemical formula CdS. It is a direct band gap semiconductor with a band gap ranging from 2.42 to 2.57 eV. This material finds application as a pigment, in photoresistors, and as a component in optical-electronic devices such as photodiodes and solar batteries. It is also utilised in phosphor materials and for preparing optical devices for infrared applications.
Pigments and Phosphors
Cadmium sulfide serves as a pigment in the chemical industry and is used in the manufacturing of phosphor materials. Its optical properties make it suitable for various light-emitting applications.
Semiconductor Devices
As a direct band gap semiconductor, CdS is employed in photoresistors, photodiodes, and solar batteries. Single crystals are particularly useful for optical devices operating in the infrared spectrum.
Catalysis and Materials Science
This compound falls under categories such as Catalysis and Inorganic Chemistry, Chalcogenides, and Materials Science. It is also relevant in Metal and Ceramic Science research and development.
| Molecular weight | 144.48 |
|---|---|
| Linear formula | CdS |
| Grade | for synthesis |
| Form | powder |
| Density | 4.82 g/mL at 25 °C(lit.) |
| Solubility | H2O: insoluble(lit.) |
| Application | Applications: pigment in the chemical industry; photoresistors; optical-electronic pairs, photodiodes, solar batteries; phosphors. Single crystals of cadmium sulfide are used for the preparation of optical devices operating in the infrared regaion of spectrum. Cadmium sulfide is a direct band gap semiconductor with a band gap band from 2.42 to 2.57 eV. |
| Melting point | −1750 °C (at a pressure of 100 bar)(lit.) |
Hazard statements
- H302Harmful if swallowed
- H341Suspected of causing genetic defects
- H350May cause cancer
- H361FD
- H372Causes damage to organs through prolonged exposure
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P201Obtain special instructions before use
- P281Use personal protective equipment as required
- P308IF exposed or concerned
| Transport (UN / ADR) | UN 3077 9 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 45-63-22-48/23/25-53-62-68 |
| Safety statements (S) | 53-45-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mol Wt | Mw 144.5 g/mol(lit.) |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Cadmium sulfide used for?
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Cadmium sulfide is used as a pigment, in photoresistors, optical-electronic pairs, photodiodes, solar batteries, and phosphors. Single crystals are also used for optical devices in the infrared spectrum.
What is the CAS number and formula for Cadmium sulfide?
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The CAS number for Cadmium sulfide is 1306-23-6, and its chemical formula is CdS.
What grade and purity does Tech Serve Solutions supply for Cadmium sulfide?
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Tech Serve Solutions supplies Cadmium sulfide in a 'for synthesis' grade. TSS does not represent this product as USP, BP, or EP grade.
What are the main hazards associated with Cadmium sulfide?
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Cadmium sulfide is classified with Danger signal word. It is harmful if swallowed (H302), suspected of causing genetic defects (H341), may cause cancer (H350), is suspected of damaging fertility or the unborn child (H361fd), causes damage to organs through prolonged or repeated exposure (H372), and may cause long lasting harmful effects to aquatic life (H413).
How is Cadmium sulfide packed, shipped, and exported?
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Cadmium sulfide is shipped as UN 3077, Class 9, Packing Group III. Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals.
How can I request a sample or quote for Cadmium sulfide?
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To request a sample or a quotation for Cadmium sulfide, please contact our sales team through the website.
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