Description

Sodium Tellurite is an inorganic salt of tellurous acid, widely recognized for its role as a versatile chemical intermediate and a source of tellurium. This compound is valued for its utility in specialized industrial processes and advanced material synthesis, where precise chemical properties are paramount. It is essential for manufacturers and research institutions in sectors such as electronics, glass production, and microbiology, who require a reliable and high-purity source of tellurium(IV).

Application

• Microbiology and Diagnostic Media: A key component in selective culture media, such as Mueller-Hinton agar, for the isolation and identification of Corynebacterium species.
• Electroplating & Surface Treatment: Used in electroplating baths to deposit tellurium or tellurium alloy coatings, which can impart specific electrical or corrosion-resistant properties.
• Glass & Ceramic Manufacturing: Acts as a coloring agent and fining agent in the production of specialized glasses and ceramics, influencing optical properties.
• Chemical Synthesis: Serves as a precursor or catalyst in organic and inorganic synthesis for producing other tellurium compounds.
• Semiconductor & Photovoltaic Research: Employed in the research and development of thin-film semiconductors (e.g., CdTe) for solar cells and electronic devices.
• Alloy Production: Used as an additive to improve the machinability and strength of certain metals, such as lead and copper alloys.

Basic Information

Product Name	Sodium Tellurite
CAS No.	10102-20-2
Molecular Formula	Na2TeO3
Molecular Weight	221.58 g/mol
Synonyms	Tellurous acid, disodium salt; Disodium tellurite; Sodium tellurate(IV); Tellurite, sodium; Sodium tellurium trioxide; Sodium metatellurite; Sodium tellurite (Na2TeO3)
EINECS	233-268-4

Quality Control

Our Sodium Tellurite is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles 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, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong acids and reducing agents. The product is hygroscopic; ensure containers are sealed tightly after use to minimize moisture absorption.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Na2TeO3)	≥ 98.0 %
Solubility (in water)	Clear, colorless solution
pH (5% solution)	9.0 - 11.0
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
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.