Description

Arsenic (III) Sulfide is a high-purity inorganic compound primarily recognized as the mineral orpiment. This material is valued for its specific chemical and physical properties, making it a critical raw material in several advanced industrial and research applications. It is essential for manufacturers and R&D facilities in sectors such as electronics, specialty glass, and chemical synthesis requiring precise arsenic sources.

Application

• Semiconductor Manufacturing: Used in the production of gallium arsenide (GaAs) and other III-V compound semiconductors for optoelectronics and high-speed integrated circuits.
• Infrared Optics: Serves as a key component in the formulation of chalcogenide glasses for infrared-transmitting lenses and windows.
• Pigments and Dyes: Employed in the creation of traditional and specialized yellow pigments, though modern use is highly regulated.
• Pyrotechnics: Acts as a colorant in certain pyrotechnic compositions to produce specific visual effects.
• Chemical Synthesis: Utilized as a precursor in organic and inorganic synthesis for introducing arsenic into target molecules.
• Research & Development: Serves as a standard or starting material in academic and industrial research laboratories.

Basic Information

Product Name	Arsenic (III) Sulfide
CAS No.	1303-33-9
Molecular Formula	As2S3
Molecular Weight	246.04 g/mol
Synonyms	Arsenic Trisulfide; Diarsenic Trisulfide; Orpiment; Arsenic(3+) Sulfide; Arsenious Sulfide; King's Yellow; Auripigment; Arsenic Sesquisulfide
EINECS	215-117-4

Quality Control

Our Arsenic (III) Sulfide is manufactured under stringent quality control protocols to ensure batch-to-batch consistency and high purity. Production adheres to relevant ISO 9001 quality management principles. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee material integrity for your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder or lumps
Identification (IR)	Conforms
Assay (As2S3)	≥ 99.0%
Arsenic (As) Content	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Particle Size	Customizable (e.g., -100 mesh, -325 mesh)

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