Understanding Trimethyl Borate (121-43-7): Key Insights

Trimethyl borate, with the chemical formula B(OCH₃)₃ and CAS number 121-43-7, is an important organoboron compound utilized in various industrial and laboratory applications. Below are key insights into its properties, uses, safety, and environmental impact.

• Molecular Weight: The molecular weight of trimethyl borate is approximately 110.93 g/mol.
• Appearance: It is a colorless, clear liquid with a mild sweet smell.
• Solubility: Trimethyl borate is soluble in alcohol and ether but has low solubility in water.
• Boiling Point: The boiling point of this compound is around 64 °C (147 °F).

• As a Reagent: It is commonly used in organic synthesis, especially for the formation of boron-containing compounds.
• Manufacture of Boron Compounds: Trimethyl borate serves as a precursor in the production of more complex boron compounds.
• Glass and Ceramics: It plays a role in the production of borosilicate glass and ceramic materials.
• Flame Retardants: This compound is used in formulations for enhancing flame resistance in plastics and textiles.
• As a Solvent: Due to its unique properties, it can be used as a solvent in various chemical reactions.

• Hazards: Trimethyl borate is flammable and should be handled with care to avoid fire hazards.
• Health Effects: Inhalation or skin contact can lead to respiratory issues and skin irritation; proper personal protective equipment (PPE) is necessary.
• Storage: It should be stored in a cool, well-ventilated area away from incompatible substances.

• Biodegradability: Trimethyl borate is considered to have low environmental toxicity and may break down in natural conditions.
• Impact on Ecosystems: Minimal studies exist, but it is advisable to limit releases into water bodies to prevent potential effects on aquatic life.
• Regulatory Status: Specific guidelines and regulations surrounding its use may apply based on local environmental protection laws.

In summary, trimethyl borate is a versatile organoboron compound with significant applications across various sectors, from organic synthesis to flame retardancy. Understanding its properties and handling them with care can help mitigate risks associated with its use. As industries increasingly focus on safety and environmental impacts, knowledge of compounds like trimethyl borate will be essential for professionals in the field.

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