Description

Arsenic Acid, Sodium Salt CAS NO 7631-89-2 is a key inorganic compound primarily used as a versatile precursor in specialized chemical synthesis. Its consistent quality and reliable supply are critical for manufacturers requiring precise arsenic-based intermediates. This product is essential for industries such as wood preservation, glass manufacturing, and specialized chemical research where controlled arsenic content is necessary.

Application

• Wood Preservative Formulation: Acts as a key component in the production of chromatid copper arsenate (CCA) and other arsenic-based wood treatment chemicals.
• Glass and Ceramics Industry: Used as a fining agent to remove bubbles and as a decolorizing agent in specialty glass manufacturing.
• Chemical Synthesis: Serves as a crucial starting material or intermediate for synthesizing other arsenic compounds, including pharmaceuticals and agrochemicals.
• Laboratory Reagent: Employed in analytical chemistry and research settings for calibration, testing, and experimental procedures.
• Metallurgy: Used in certain alloying processes and surface treatments for metals.
• Dye and Pigment Production: Functions as a mordant or component in the manufacture of specific colorants.

Basic Information

Product Name	Arsenic Acid, Sodium Salt
CAS No.	7631-89-2
Molecular Formula	Na3AsO4 (Anhydrous) / Na3AsO4·12H2O (Dodecahydrate)
Molecular Weight	207.89 g/mol (Anhydrous) / 424.07 g/mol (Dodecahydrate)
Synonyms	Sodium Arsenate; Trisodium Arsenate; Arsenic Acid Trisodium Salt; Sodium Orthoarsenate; Trisodium Orthoarsenate; Atochem; SODIUM ARSENATE, TRIBASIC
EINECS	231-548-0

Quality Control

Our Arsenic Acid, Sodium Salt is manufactured under strict quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and physical characterization, to meet exacting customer requirements. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption and caking. Keep away from incompatible materials such as strong acids and reducing agents.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as Na3AsO4)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 10 ppm

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