Description

Arsenous Acid CAS NO 13464-58-9 is a key inorganic compound of arsenic, primarily recognized for its role as a precursor in the synthesis of various arsenicals. Its controlled purity and consistent quality are critical for ensuring the reliability and performance of downstream chemical processes and specialty materials. This product is essential for manufacturers and research facilities in the chemical synthesis, electronics, and glass production industries.

Application

• Chemical Synthesis: A fundamental starting material for producing other arsenic compounds, including arsenates and organoarsenicals.
• Glass Manufacturing: Used as a refining agent and decolorizer to remove green tints caused by iron impurities in specialty glass.
• Electronics Industry: Employed in the production of semiconductors and gallium arsenide (GaAs) wafers for optoelectronic devices.
• Wood Preservation: Serves as a key component in the formulation of chromatid copper arsenate (CCA) for industrial timber treatment.
• Pesticide Intermediate: Acts as a chemical intermediate in the manufacture of certain herbicides and insecticides.
• Research & Development: Utilized in analytical chemistry and academic research for studying arsenic chemistry and environmental behavior.

Basic Information

Product Name	Arsenous Acid
CAS No.	13464-58-9
Molecular Formula	As(OH)3 / H3AsO3
Molecular Weight	125.94 g/mol
Synonyms	Arsenic trioxide (aqueous solution); Arsenious acid; Orthoarsenious acid; Arsenic(III) oxide solution; Arsenic sesquioxide solution; White arsenic (in solution); Arseneous acid
EINECS	236-481-6

Quality Control

Our Arsenous Acid is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical tests, including assay, identification, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your specifications and relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and organic solvents. Maintain at controlled room temperature (15-25°C). Due to its nature, ensure containers are kept upright and securely sealed to prevent contamination and moisture ingress.

Specification

Item	Specification
Appearance	Colorless solution or white crystalline solid
Identification (IR)	Conforms
Assay (As2O3 basis)	≥ 99.0%
Chloride (Cl)	≤ 0.01%
Sulfate (SO4)	≤ 0.02%
Iron (Fe)	≤ 0.002%
Heavy Metals (as Pb)	≤ 0.001%

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