Best Selling Price Sodium tellurite CAS NO (10102-20-2) In Bulk

1. Chemical Structure and Identity:

Sodium tellurite, with the chemical formula Na2TeO3, is an inorganic compound consisting of sodium cations (Na⁺) and tellurite anions (TeO3²⁻). It belongs to the class of tellurium compounds and is commonly used in various chemical processes.

2. Synthesis and Production:

Sodium tellurite can be synthesized by reacting tellurium dioxide (TeO2) with sodium hydroxide (NaOH) or sodium carbonate (Na2CO3) in aqueous solution:

TeO2 + 2NaOH → Na2TeO3 + H2O

Alternatively, it can be obtained through the reaction between tellurium metal or tellurium powder and sodium hydroxide in the presence of air or oxygen.

3. Physical Properties:

• Appearance: Sodium tellurite typically appears as a white to off-white crystalline solid.
• Solubility: It is soluble in water, forming a clear or slightly hazy solution.

4. Chemical Properties:

• Oxidation State: Tellurium in sodium tellurite exhibits a formal oxidation state of +4.
• Reducing Properties: Sodium tellurite can act as a reducing agent in certain chemical reactions, particularly in acidic solutions, where it can undergo oxidation to form tellurium dioxide (TeO2) or elemental tellurium (Te).

5. Applications and Uses:

Sodium tellurite has various applications in chemical synthesis, microbiology, and material science:

• Microbiological Culture Media: Sodium tellurite is commonly used as a selective agent in microbiological culture media to inhibit the growth of certain bacteria, particularly Gram-positive organisms such as Staphylococcus species. This property is exploited in the isolation and identification of pathogenic bacteria.
• Chemical Synthesis: Sodium tellurite serves as a source of tellurium in chemical synthesis reactions for the preparation of tellurium-containing compounds, catalysts, and materials. It can participate in various redox reactions and is a precursor to other tellurium compounds.
• Material Science: Sodium tellurite is used in the preparation of tellurite glasses and glass-ceramics, which have potential applications in optics, telecommunications, and photonics due to their unique optical and electrical properties.

6. Safety and Handling:

Sodium tellurite should be handled with care due to its toxicity and potential health hazards:

• Toxicity: Tellurium compounds, including sodium tellurite, are toxic if ingested, inhaled, or absorbed through the skin. They can cause irritation to the respiratory tract, skin, and eyes. Proper precautions should be taken when handling this compound, including the use of appropriate personal protective equipment (PPE) such as gloves and goggles.
• Environmental Impact: Sodium tellurite may pose environmental risks if released into the environment. Proper handling, storage, and disposal practices should be followed to minimize environmental contamination.

7. Regulatory Considerations:

The production, handling, and use of sodium tellurite may be subject to regulations and guidelines established by government agencies to protect human health and the environment. Compliance with these regulations is essential to ensure safety and environmental protection.

In summary, sodium tellurite is an inorganic compound with applications in microbiology, chemical synthesis, and material science. Its synthesis, physical properties, chemical properties, applications, safety considerations, environmental impact, and regulatory aspects are important factors to consider in its production, handling, and utilization.