Description

Arsenic(Vi) Acid CAS NO 7778-39-4 is a highly reactive inorganic acid, also known as orthoarsenic acid, which serves as a critical precursor in the synthesis of various arsenates. Its strong acidic nature and reactivity make it a valuable reagent for specialized chemical manufacturing and research applications. This compound is essential for industries involved in the production of wood preservatives, specialty glass, and certain semiconductor materials, where precise control over arsenic compounds is required.

Application

• Wood Preservative Synthesis: A key intermediate in the production of chromatid copper arsenate (CCA) and other arsenate-based wood treatment chemicals.
• Specialty Glass Manufacturing: Used in the formulation of specific glass types, such as infrared-transmitting glass and decolorizing agents.
• Semiconductor Industry: Acts as a dopant source or precursor in the fabrication of gallium arsenide (GaAs) and other III-V semiconductor compounds.
• Chemical Synthesis: Serves as a starting material or catalyst in organic and inorganic synthesis for various arsenate salts and esters.
• Research & Development: Utilized in analytical chemistry and materials science research as a standard or reagent.
• Ceramics & Pigments: Employed in the production of certain ceramic glazes and colored pigments.

Basic Information

Item	Details
Product Name	Arsenic(Vi) Acid
CAS No.	7778-39-4
Molecular Formula	H3AsO4
Molecular Weight	141.94 g/mol
Synonyms	Orthoarsenic Acid; Arsenic Acid (H3AsO4); Hydrogen Arsenate; Zotox; Arsenic(V) Acid; Desiccant L-10; Arsenic Acid, Solid; Arsenic Acid, Liquid
EINECS	231-901-9

Quality Control

Our Arsenic(Vi) Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. The product undergoes comprehensive analytical testing, including assay, impurity profiling, and physical characterization, to meet the stringent requirements of industrial and research applications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee specification compliance.

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 hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed to prevent absorption of atmospheric moisture. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	White crystalline solid or colorless solution
Identification (IR)	Conforms
Assay (H3AsO4)	≥ 98.0 %
Chloride (Cl)	≤ 0.005 %
Sulfate (SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 10 ppm
Loss on Drying	≤ 1.0 %

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