Description

Europium Sulfide CAS NO 12020-65-4 is an inorganic compound belonging to the rare earth chalcogenide family. It is a critical functional material valued for its distinct magnetic, optical, and electronic properties derived from the europium ion. This compound is essential for advanced research and industrial applications requiring precise luminescent or semiconducting characteristics. Key industries that utilize this material include optoelectronics, solid-state physics research, and specialty chemical manufacturing.

Application

• Phosphor and Luminescent Material Precursor: A key starting material for synthesizing red-emitting phosphors used in display technologies, LEDs, and X-ray intensifying screens.
• Magnetic and Spintronic Research: Investigated for its unique magnetic properties, including potential applications in data storage and spintronic devices.
• Semiconductor and Thin Film Deposition: Serves as a source material for chemical vapor deposition (CVD) or physical vapor deposition (PVD) to create thin films for electronic and optical coatings.
• Solid-State Chemistry and Catalysis: Used as a catalyst or catalyst support in specialized chemical reactions and as a model compound in solid-state chemistry studies.
• Infrared Optical Material: Potential application in infrared-transmitting windows or lenses due to the properties of sulfide compounds.
• Dopant for Other Functional Materials: Employed as a doping agent to modify the electrical or optical properties of other semiconductor or ceramic materials.

Basic Information

Item	Detail
Product Name	Europium Sulfide
CAS No.	12020-65-4
Molecular Formula	EuS
Molecular Weight	184.03 g/mol
Synonyms	Europium(II) sulfide; Europium monosulfide; Europium sulfide (EuS); Dithioxoeuropium; EINECS 234-660-6
EINECS	234-660-6

Quality Control

Our Europium Sulfide is produced and handled under a stringent quality management system. Each batch undergoes comprehensive analysis to ensure high chemical purity and consistent physical properties. Standard testing includes assay determination, phase purity by X-ray diffraction (XRD), and trace metal analysis by ICP. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere (e.g., argon or nitrogen) when appropriate to prevent oxidation and degradation.

Specification

Item	Specification
Appearance	Brown to black powder or crystalline pieces
Identification (XRD)	Conforms to structure of EuS
Assay (Europium as EuS)	≥ 99.9% (metal basis)
Purity (XRD)	≥ 99% crystalline phase pure
Trace Rare Earth Impurities	≤ 0.1% (Total)
Particle Size (D50)	Customizable (1-50 µm typical)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.