Description

Arsenic Oxise CAS NO 12777-38-7 is a specialized inorganic compound of significant industrial and research interest. This material serves as a critical precursor and intermediate in the synthesis of various arsenic-containing compounds and advanced materials. It is essential for manufacturers and research institutions engaged in electronics, metallurgy, and specialty chemical production. Our supply ensures consistent quality and reliable availability for demanding global applications.

Application

• Semiconductor Manufacturing: Used as a dopant source or precursor in the production of gallium arsenide (GaAs) and other III-V semiconductor compounds.
• Metallurgy & Alloy Production: Acts as an additive to improve the hardness, corrosion resistance, and thermal properties of non-ferrous alloys, particularly lead and copper-based alloys.
• Specialty Glass & Ceramics: Employed as a fining agent and decolorizer in the manufacture of specialty optical glasses and ceramics, where precise arsenic content is required.
• Chemical Synthesis: Serves as a key intermediate for synthesizing other arsenic compounds, including arsenates and organoarsenic derivatives used in research and niche applications.
• Wood Preservation: Historically used in the formulation of copper chrome arsenate (CCA) and other preservative treatments, though now highly regulated.
• Research & Development: Utilized in academic and industrial R&D laboratories for material science studies, catalysis, and analytical chemistry.

Basic Information

Product Name	Arsenic Oxise
CAS No.	12777-38-7
Molecular Formula	As2O3 (Arsenic Trioxide)
Molecular Weight	197.84 g/mol
Synonyms	Arsenic Trioxide; Diarsenic Trioxide; Arsenous Acid Anhydride; Arsenic(III) Oxide; White Arsenic; Arsenious Oxide; Claudelite (mineral form); Arsenicum Album; Arsenolite (mineral form)
EINECS	235-481-4

Quality Control

Our Arsenic Oxise is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and purity. We offer material that meets technical and high-purity grade specifications, with typical assays exceeding 99%. Each batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, impurity profiles, and physical characteristics. Our quality systems are designed to support compliance with relevant global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep the container tightly sealed to prevent moisture absorption and contamination. Store away from incompatible materials such as strong reducing agents, acids, and foodstuffs. Follow all local, national, and international regulations for the storage of toxic substances.

Specification

Item	Specification
Appearance	White powder or crystalline solid
Identification (IR)	Conforms
Assay (As2O3)	≥ 99.0 %
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 0.001 %

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