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Wacker Chemie Silane M1-Trimethoxy

Wacker Chemie Silane M1-Trimethoxy is a clear, colorless liquid with the characteristic odor of alcohols. It is primarily used to provide water repellency to various surfaces and materials, such as mineral fillers, pigments, glass, and cardboard. Additionally, SILANE M1-TRIMETHOXY is employed in the manufacturing of silicone resins and condensation-curing silicone rubber. It also finds application in aqueous sol-gel coating systems to produce organic-inorganic hybrids.

Chemical Name: Trimethoxy(methyl)silane

CAS Number: 1185-55-3

Chemical Family: Silanes

Purity (Assay): 97.0 - 100.0 %

Compatible Polymers & Resins: Silicones

Synonyms: (Trimethoxysilyl)methane, Methylsilicon trimethoxide (MeSi(OMe)3), Methyltrimethoxysilane, Methyltrimethyloxysilane, MTMS, NSC 93883, Trimethoxymethylsilane

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions
CAS No.
1185-55-3
Molecular formula
C₄H₁₂O₃Si
EC No.
214-685-0
Technologies
Chemical Structure

(CH3O)3SiCH3

Features & Benefits

Applications & Uses

Compatible Polymers & Resins
Compatible Substrates & Surfaces
Applications
  • Heat-Resistant Coatings
  • Industrial Coatings
Application Details
  • SILANE M1-TRIMETHOXY is used mainly to render a wide range of surfaces and materials water repellent (e.g. mineral fillers, pigments, glass, cardboard).
  • SILANE M1-TRIMETHOXY is also used in the production of silicone resins and condensation-curing silicone rubber. In a further application, aqueous sol-gel coating systems are used to produce organic/ inorganic hybrids.


Processing 

  • General processing information: SILANE M1-TRIMETHOXY is highly miscible with standard organic solvents, such as alcohols, hydrocarbons and acetone.
  • SILANE M1-TRIMETHOXY is practically insoluble in neutral water and reacts only slowly to form silanols and higher condensation products. Addition of a hydrolytic catalyst (inorganic/organic acids, ammonia or amines) accelerates the hydrolysis of SILANE M1-TRIMETHOXY substantially.
  • The relative and absolute rates of hydrolysis and condensation to form siloxanes will depend on various factors, such as pH value (catalyst), concentration, temperature and solvent. SILANE M1-TRIMETHOXY as a filler modifier: SILANE M1-TRIMETHOXY may be used as is or in solution to treat fillers, using suitable mixing equipment. It may be necessary to first pre-treat the substrate with water and/or a catalyst.
  • SILANE M1-TRIMETHOXY as a constituent of sol-gel materials and silicones:
  • As a constituent of sol-gel materials, SILANE M1-TRIMETHOXY - on its own or together with other siliceous building blocks, such as silicates (SILICATE TES 28) or organofunctional silanes from the WACKER GENIOSIL® range and perhaps stabilizing substances in aqueous or aqueous/organic solvent mixtures - undergoes a sol-gel process.
  • Various properties (e.g. refractive index, flexibility, resistance to chemicals or scratches) of coatings produced in this way can be controlled by precisely adjusting parameters such as temperature, pH and concentration.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Boiling Point (at 1013 hPa)102°C
Density (at 25°C)0.95g/cm³DIN 51757
Flash Point11°CDIN 51755
HCL Content0.0 - 30.0 ppmDirect titration
Ignition Temperature230°CDIN 51794
Purity97.0 - 100.0 %Gas Chromatography
Technical Data
ValueUnitsTest Method / Conditions
Molecular Weight136.2g/mol
Properties
  • The use of SILANE M1-TRIMETHOXY to render fillers water repellent considerably improves their dispersibility and reduces their sedimentation tendency.
  • Mineral-filled plastics can thus be processed more easily. Additionally, resistance to moisture and chemicals is much increased.
  • SILANE M1-TRIMETHOXY can be used as a constituent of silica gels, silicone resins and silicone rubber. In such compounds, the degree of curing and hence mechanical properties, such as elongation at break, modulus of elasticity and a coating's flexibility, can be controlled precisely by varying the amount of SILANE M1-TRIMETHOXY used.
  • SILANE M1-TRIMETHOXY is an alkylalkoxysilane. The silane hydrolyzes slowly in the presence of moisture (methanol is released) to form reactive silanols. These react further to produce oligosiloxanes, and then polysiloxanes.

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • Middle East
  • North America
  • Oceania