bistrimethyl silyl sulfide cas no

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Bis(trimethylsilyl) sulfide: A Comprehensive Guide (CAS No. 1097-04-9)

Meta Description: Dive deep into Bis(trimethylsilyl) sulfide (CAS No. 1097-04-9)! This comprehensive guide explores its properties, synthesis, applications, safety precautions, and more. Learn about its role in organic synthesis and its importance in various industrial processes. Discover detailed information on handling, storage, and regulatory compliance for this versatile organosulfur compound.

H1: Bis(trimethylsilyl) sulfide (CAS No. 1097-04-9): Properties, Applications, and Safety

Bis(trimethylsilyl) sulfide, often abbreviated as TMSSTMS or (Me3Si)2S, is an organosulfur compound with the CAS number 1097-04-9. It's a colorless liquid with a pungent odor, finding extensive use as a reagent in organic synthesis and other industrial applications. This article provides a detailed overview of its properties, synthesis, applications, and safety considerations.

H2: Chemical Properties of Bis(trimethylsilyl) sulfide

• Molecular Formula: C6H18SSi2
• Molecular Weight: 178.4 g/mol
• Appearance: Colorless to pale yellow liquid
• Odor: Pungent
• Melting Point: -82 °C
• Boiling Point: 167 °C
• Density: 0.85 g/cm³
• Solubility: Soluble in most organic solvents, insoluble in water.
• Reactivity: Reacts with a variety of electrophiles, including alkyl halides and carbonyl compounds. It's sensitive to moisture and air.

H2: Synthesis of Bis(trimethylsilyl) sulfide

Bis(trimethylsilyl) sulfide is typically synthesized through the reaction of trimethylchlorosilane (TMSCl) with a sulfide source, often sodium sulfide (Na2S). This reaction proceeds readily under appropriate conditions.

H3: Detailed Synthesis Procedure:

A typical synthesis involves reacting trimethylchlorosilane with sodium sulfide in an aprotic solvent like diethyl ether or THF. The reaction is exothermic and generates sodium chloride as a byproduct. The product is then purified via distillation. Precise reaction conditions and yields vary depending on the specific procedure used. More detailed procedures can be found in scientific literature.

H2: Applications of Bis(trimethylsilyl) sulfide

Bis(trimethylsilyl) sulfide’s versatility stems from its ability to act as a sulfur transfer reagent. Its key applications include:

• Organic Synthesis: It is frequently used to introduce sulfur into organic molecules, facilitating the synthesis of various sulfur-containing compounds such as thiols, sulfides, and thioethers. This makes it an important building block in medicinal chemistry and materials science.

• Polymer Chemistry: Bis(trimethylsilyl) sulfide plays a role in the synthesis of certain polymers and in polymer modification reactions. Its use in this field is less widespread than in organic synthesis but is steadily growing.

• Materials Science: Emerging applications involve its use in the preparation of novel materials containing sulfur. The precise applications are still under development and investigation.

H2: Safety Precautions and Handling

Bis(trimethylsilyl) sulfide should be handled with appropriate safety precautions. It is important to note:

• Flammability: It is flammable. Keep away from open flames and ignition sources.
• Toxicity: Although toxicity data is limited, it's crucial to handle it under a well-ventilated area and wear appropriate personal protective equipment (PPE), including gloves, eye protection, and a lab coat.
• Moisture Sensitivity: It reacts with moisture in the air, reducing its effectiveness and possibly generating undesirable byproducts. Store it in a tightly sealed container under inert conditions.
• Disposal: Dispose of it according to local regulations. Never pour it down the drain.

H2: Storage and Regulatory Compliance

Proper storage is essential to maintain the purity and quality of bis(trimethylsilyl) sulfide. It should be stored in a cool, dry place, away from incompatible materials and moisture. Always check relevant Safety Data Sheets (SDS) before handling, and ensure compliance with all local and international regulations concerning its use and disposal.

H2: Where to Buy Bis(trimethylsilyl) sulfide

Bis(trimethylsilyl) sulfide can be purchased from various chemical suppliers. When purchasing, ensure the supplier adheres to quality and safety standards. Always verify the purity and check for relevant certifications.

H2: Frequently Asked Questions (FAQs)

H3: What is the role of bis(trimethylsilyl) sulfide in organic synthesis?

Bis(trimethylsilyl) sulfide is a valuable reagent used as a source of sulfur in many organic reactions. Its reactivity allows for the introduction of sulfur into various organic molecules, contributing to the synthesis of numerous sulfur-containing compounds.

H3: What are the safety concerns associated with handling bis(trimethylsilyl) sulfide?

While specific toxicity data is limited, bis(trimethylsilyl) sulfide is flammable and reacts with moisture. Proper handling requires a well-ventilated area, appropriate PPE (gloves, eye protection, lab coat), and adherence to safety protocols.

H3: How should bis(trimethylsilyl) sulfide be stored?

Bis(trimethylsilyl) sulfide should be stored in a cool, dry place, in a tightly sealed container, away from incompatible materials and sources of moisture. Consult the SDS for specific storage recommendations.

Conclusion:

Bis(trimethylsilyl) sulfide (CAS No. 1097-04-9) is a versatile organosulfur compound with valuable applications in various fields. Understanding its properties, synthesis, applications, and safety protocols is crucial for its safe and effective use. Adherence to proper handling, storage, and disposal practices is essential to ensure worker safety and environmental protection. Always consult relevant Safety Data Sheets and regulatory information before working with this chemical.