Methylvinyldichlorosilane
| Chemical Name: | Methylvinyldichlorosilane |
| Alias: | Vinylmethyldichlorosilane; Dichloromethyl vinylsilane; |
| Product Category: | Vinyl Silane – Silanes |
| Structural Formula: |  |
| CAS No.: | 124-70-9 |
| EINECS: | 204-710-3 |
| Molecular Formula: | C3H6Cl2Si |
| Molecular Weight: | 141.07 |
Methylvinyldichlorosilane Description
Methylvinyldichlorosilane (CAS 124-70-9), also known as Vinylmethyldichlorosilane or Dichloromethylvinylsilane, is a colorless to light brown transparent liquid with excellent adhesion properties.
This silane compound is widely used as an adhesion promoter for inorganic substrates, including glass, plastics, and metals. It is also utilized in high-performance hot melt adhesives, sealants, and coatings. Additional applications include surface treatment for glass fibers, crosslinking in polyethylene, and enhancing adhesion in refractory materials.
| Chemical name | Methylvinyldichlorosilane |
| Synonymous | Vinylmethyldichlorosilane, Dichloromethylvinylsilane |
| InChI | InChI=1/C3H6Cl2Si/c1-2-6-3(4)5/h2-3H,1,6H2 |
| InChIKey | YLJJAVFOBDSYAN-UHFFFAOYSA-N |
| Density | 1.08g/mLat 25°C(lit.) |
| Melting Point | -78°C |
| Boiling Point | 92°C(lit.) |
| Flash Point | 40°F |
| Vapor Pressure | 16.308mmHg at 25°C |
| Steam Density | >1 (vs air) |
| Refractive Index | n20/D 1.430(lit.) |
| Storage Conditions | 2-8°C |
| Sensitivity | Moisture Sensitive |
| Exterior | liquid |
| Proportion | 1.087 |
| Color | Colorless to Light yellow |
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Methylvinyldichlorosilane: Guide
Methylvinyldichlorosilane (CAS 124-70-9) is a colorless to light brown liquid used in silicone synthesis, adhesion promotion, and surface treatment. It reacts with ethanol to release hydrogen chloride and undergoes addition reactions with Si-H compounds.
Applications:
✔ Adhesion Promoter – Enhances bonding in coatings, sealants, and polymers.
✔ Crosslinking Agent – Used in polyethylene grafting and copolymerization.
✔ Surface Treatment – Improves compatibility in plastics, rubber, and fillers.
Ideal for silicone intermediates, silicone oils, and rubber production.
