Description

Trisodiumarsenateheptahydrate CAS NO 64070-83-3 is a high-purity inorganic salt, specifically the heptahydrate form of sodium arsenate. This compound serves as a critical reagent and precursor in specialized industrial and research applications where a controlled source of arsenate is required. It is essential for manufacturers and R&D laboratories in sectors such as metallurgy, specialty glass production, and advanced material synthesis.

Application

• Metallurgical Processing: Used in the formulation of fluxes and as an additive in non-ferrous metal refining.
• Specialty Glass & Ceramics: Acts as a fining agent and decolorizer in the production of specialty optical and technical glass.
• Chemical Synthesis: Serves as a key precursor for the synthesis of other arsenate compounds and complex inorganic materials.
• Preservative Formulations: Employed in the manufacture of specific industrial wood preservatives (subject to regional regulations).
• Analytical Chemistry: Utilized as a standard or reagent in specific quantitative analytical methods.
• Semiconductor Industry: Used in niche processes for doping and etching in semiconductor fabrication.

Basic Information

Product Name	Trisodiumarsenateheptahydrate
CAS No.	64070-83-3
Molecular Formula	Na3AsO4·7H2O
Molecular Weight	424.08 g/mol
Synonyms	Sodium arsenate heptahydrate; Trisodium orthoarsenate heptahydrate; Arsenic acid, trisodium salt, heptahydrate; Sodium arsenate (Na3AsO4) heptahydrate; 64070-83-3; Heptahydrate trisodium arsenate; Trisodium arsenic acid heptahydrate
EINECS	Contact for details

Quality Control

Our Trisodiumarsenateheptahydrate is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and physical specifications is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White or colorless crystalline powder
Identification (IR)	Conforms
Assay (Na3AsO4·7H2O)	≥ 98.0 %
Water Content (Karl Fischer)	27.0 - 31.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 10 ppm
Insoluble Matter	≤ 0.05 %

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