Description

Arsenic CAS NO 7440-38-2 is a metalloid element essential for specialized industrial and research applications. Its unique chemical properties make it a critical component in the production of semiconductors, specialized alloys, and certain wood preservatives. This high-purity material is primarily utilized by manufacturers in the electronics, metallurgy, and specialty chemical industries who require a reliable and consistent supply of elemental arsenic for their processes.

Application

• Semiconductor Manufacturing: Used as a doping agent in gallium arsenide (GaAs) and other III-V compound semiconductors for LEDs, laser diodes, and high-speed electronic devices.
• Alloy Production: A key additive in lead alloys for lead-acid batteries and in copper alloys to improve corrosion resistance and mechanical strength.
• Wood Preservation: Historically used in the formulation of chromated copper arsenate (CCA) for pressure-treated lumber (subject to regional regulations).
• Specialty Chemicals: Serves as a precursor in the synthesis of organoarsenic compounds and other arsenic-based chemicals for research and specialized applications.
• Glass Manufacturing: Employed as a decolorizing and fining agent to remove bubbles and green tint from glass.
• Pyrotechnics: Used in specific pyrotechnic compositions to create blue and white flame effects.
• Research & Development: Utilized in academic, industrial, and governmental laboratories for material science, chemistry, and toxicology studies.
• Pharmaceutical Intermediates: Acts as a starting material for the synthesis of certain active pharmaceutical ingredients (APIs), under strict Good Manufacturing Practice (GMP) controls.

Basic Information

Product Name	Arsenic
CAS No.	7440-38-2
Molecular Formula	As
Molecular Weight	74.9216 g/mol
Synonyms	Arsenic, metallic; Arsenic black; Gray arsenic; Arsenic-75; Arsenicum; Colloidal arsenic; Elemental arsenic; Metallic arsenic
EINECS	231-148-6

Quality Control

Our Arsenic is produced and handled under stringent quality management systems to ensure batch-to-batch consistency and purity. We offer various grades, including high-purity (99.999%+) for electronic applications and technical grades for industrial use. All materials are accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, impurity profiles, and physical specifications. Our quality protocols are designed to meet the demanding requirements of the semiconductor and specialty chemical industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Due to its nature of being easily oxidized, it is recommended to store under an inert atmosphere such as argon or nitrogen for long-term preservation. Keep container tightly sealed when not in use to minimize exposure to air and moisture. Store at controlled room temperature (15-25°C).

Specification

Item	Specification
Appearance	Gray, metallic solid
Identification (XRD/ICP-OES)	Conforms
Assay (As)	≥ 99.9%
Purity (High-Purity Grade)	≥ 99.999%
Iron (Fe)	≤ 10 ppm
Lead (Pb)	≤ 5 ppm
Antimony (Sb)	≤ 5 ppm
Sulfur (S)	≤ 10 ppm
Particle Size (Optional)	Customizable (lump, powder)

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