Methyltriethoxysilane CAS No. 2031-67-6 A Key Building Block for Silicone Chemistry from Symb ChemTech

Methyltriethoxysilane (MTES) is a versatile organosilicon compound widely used as a building block in the production of various silicone materials. Symb ChemTech offers high-quality MTES, ensuring consistent purity and performance for diverse applications. This article provides a comprehensive overview of MTES, its properties, applications, and handling.

Chemical Structure and Properties:

Methyltriethoxysilane has the following structural formula:

CAS No.: 2031-67-6

Its molecular weight is 178.56. Key technical indicators of Symb ChemTech’s MTES include:

  • Exterior: Colorless transparent liquid.
  • Content (SiO2 %): ≥ 99.0% (high purity).
  • Density (25°C): 0.899 ± 0.020 g/ml.
  • Refractive Index (25°C): 1.3800 – 1.3865.
  • Acid Value (in Cl %): ≤ 0.01%.

These properties make MTES a valuable precursor for various silicone products. Its high purity ensures consistent reaction outcomes and desired end-product characteristics.

Key Applications:

Methyltriethoxysilane plays a vital role in several industries and applications:

  • Silicone Polymers and Resins: MTES serves as a fundamental raw material in the synthesis of various silicone polymers and resins, contributing to their unique properties such as heat resistance, water repellency, and flexibility.
  • Benzyl Silicone Oil: It is a key precursor in the production of benzyl silicone oil, used in applications requiring high-temperature stability and lubricity.
  • Water Repellents: MTES is used to formulate water repellent coatings and treatments for textiles, building materials, and other surfaces, providing protection against moisture damage.
  • Room Temperature Vulcanized (RTV) Silicone Rubber: MTES acts as a crosslinking agent in RTV silicone rubber formulations, enabling curing at room temperature and providing excellent sealing, adhesion, and flexibility.
  • Pharmaceutical Industry: MTES finds applications in certain pharmaceutical processes and formulations.
  • Alkali Metal Silicon Alkoxides: It readily hydrolyzes and reacts with alkali metal hydroxides to form alkali metal silicon alkoxides, which are useful intermediates in various chemical syntheses.

Handling, Storage, and Transportation:

Proper handling and storage are crucial for maintaining the quality and stability of Methyltriethoxysilane:

  • Packing: Available in sealed iron drums or plastic drums, with a net weight of 180 kg.
  • Storage: Store in a cool, dry place away from fire and direct sunlight. The recommended shelf life is 6 months.
  • Transportation: Handle and transport as non-dangerous goods, taking precautions to prevent rain and sun exposure.

Partnering with Symb ChemTech:

Symb ChemTech is dedicated to providing high-quality chemical products and exceptional customer service. Our Methyltriethoxysilane is manufactured under strict quality control measures to meet the diverse needs of our customers. Contact us today to learn more about our products and how we can support your specific application requirements.