Description

Tellurous(IV) Acid is an inorganic compound of tellurium, primarily recognized for its role as a versatile precursor in the synthesis of other tellurium-based chemicals. Its controlled reactivity and purity are critical for ensuring the quality and performance of downstream products in advanced material and chemical manufacturing. This compound is essential for suppliers and manufacturers in the electronics, catalyst development, and specialty chemical research sectors seeking a reliable source of high-purity tellurium intermediates.

Application

• Precursor for the synthesis of tellurium dioxide (TeO2) and other tellurium salts.
• Intermediate in the production of specialized catalysts for organic synthesis and oxidation reactions.
• Raw material for manufacturing tellurium-based semiconductors and electronic materials.
• Starting material in research and development of novel inorganic compounds and coordination complexes.
• Used in analytical chemistry as a reagent for specific qualitative tests.
• Potential component in the formulation of specialized glass and ceramic compositions.

Basic Information

Product Name	Tellurous(IV) Acid
CAS No.	10049-23-7
Molecular Formula	H2TeO3
Molecular Weight	177.61 g/mol
Synonyms	Tellurous Acid; Tellurium Dihydroxide Dioxide; Dihydroxidodioxidotellurium; Orthotellurous Acid; Tellurium(IV) Hydroxide; H2TeO3; Tellurium Trioxide Hydrate
EINECS	233-193-0

Quality Control

Our Tellurous(IV) Acid is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high chemical purity. Each lot undergoes comprehensive analytical testing, including assay and impurity profile analysis. A Certificate of Analysis (COA) detailing specific results is provided with every shipment to support your quality assurance and regulatory compliance needs.

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 after opening to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms
Assay (H2TeO3)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
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.