Description

Sodium Arsenate, Heptahydrate is an inorganic salt primarily supplied as a high-purity reagent for specialized industrial and research applications. This compound is valued for its role as a precise source of arsenate ions in controlled chemical synthesis and analytical processes. Key industries that utilize this material include chemical manufacturing for specialty products and research laboratories focused on inorganic chemistry and materials science.

Application

• Chemical Synthesis: Acts as a precursor or reagent in the synthesis of other arsenate compounds and specialized inorganic materials.
• Analytical Chemistry: Used as a standard or reference material in quantitative analysis and calibration procedures.
• Preservative Research: Employed in historical or specialized studies on wood preservation and pesticide formulations (subject to strict regulatory controls).
• Electroplating & Metallurgy: Utilized in specific surface treatment processes and metallurgical research applications.
• Laboratory Reagent: Serves as a high-purity chemical for general laboratory use in educational and R&D settings.

Basic Information

Product Name	Sodium Arsenate, Heptahydrate
CAS No.	10048-95-0
Molecular Formula	Na2HAsO4·7H2O
Molecular Weight	312.01 g/mol
Synonyms	Disodium hydrogen arsenate heptahydrate; Sodium acid arsenate heptahydrate; Arsenic acid, disodium salt, heptahydrate; Disodium arsenate heptahydrate; Heptahydrate sodium arsenate; Sodium hydrogen arsenate heptahydrate; Na2HAsO4.7H2O
EINECS	233-116-4

Quality Control

Our Sodium Arsenate, Heptahydrate is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) documenting assay, impurity profiles, and physical parameters is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White or colorless crystals
Identification (IR)	Conforms
Assay (Na2HAsO4·7H2O)	≥ 98.0 %
pH (5% solution)	8.0 - 9.5
Loss on Drying	38.0 - 41.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %

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