Description

Arsenic (II) Sulfide is a critical inorganic compound with the chemical formula As2S3. This material is valued for its unique semiconductor and photoconductive properties, making it essential for advanced technological applications. It serves as a key raw material for industries including electronics, infrared optics, and specialized chemical synthesis, where precise material characteristics are paramount for performance and reliability.

Application

• Infrared Optical Materials: Used in the manufacturing of chalcogenide glasses and lenses for thermal imaging systems, night vision devices, and IR spectroscopy.
• Semiconductor Industry: Employed as a dopant or component in specific III-V semiconductor compounds and photoconductive devices.
• Pigments and Dyes: Acts as a base for producing brilliant yellow pigments (King's Yellow) used in ceramics, paints, and dyes, though modern use is limited due to toxicity.
• Pyrotechnics: Utilized in the formulation of specialized pyrotechnic compositions to produce specific visual effects.
• Chemical Synthesis: Serves as a precursor or reagent in the synthesis of other arsenic-containing compounds and in organic synthesis reactions.
• Research & Development: Critical for academic and industrial R&D in materials science, solid-state physics, and nanotechnology.

Basic Information

Product Name	Arsenic (II) Sulfide
CAS No.	1303-32-8
Molecular Formula	As2S3
Molecular Weight	246.04 g/mol
Synonyms	Arsenic Trisulfide; Diarsenic Trisulfide; Arsenic(3+) Sulfide; Orpiment; Auripigment; King's Yellow; Arsenic Yellow; Arsenic Sesquisulfide; C.I. 77086
EINECS	215-117-4

Quality Control

Our Arsenic (II) Sulfide is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including X-ray diffraction (XRD), inductively coupled plasma (ICP) analysis, and particle size distribution (PSD) testing. A Certificate of Analysis (COA) detailing purity, impurity profiles, and physical specifications is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. The product is light-sensitive and should be kept in its original packaging or an opaque container. Recommended storage temperature is 15-25°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 crystalline solid
Identification (XRD)	Conforms to standard
Assay (As2S3)	≥ 99.0%
Arsenic (As) Content	60.0 - 61.5%
Loss on Drying	≤ 0.5%
Particle Size (D50)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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