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CAS #
107-46-0
| Chemical name | Hexamethyldisiloxane |
| Brand | MM |
| Product Name | MM |
| Quality index | Purity ≥99.0%/99.5%/99.9%, moisture ≤50ppm/200ppm/300ppm, chloride ≤1ppm/5ppm/10ppm, chroma ≤10/10/20 |
| Packing size /kg | 20、150 |
| Molecular weight | 162.38 |
| Boiling point | 101 |
| Density | 0.762~0.770 |
| Refractive index | 1.375~1.379 |
| Appearance and risk | Colorless transparent liquid;Flammable liquid |
| Product application | As a sealing agent, release agent, cleaning agent, used in silicone rubber, medicine, hydrophobic agent and moisture-proof agent. |
Hexamethyldisiloxane (HMDSO), with the chemical formula C₆H₁₈OSi₂, is a versatile organosilicon compound widely recognized for its unique properties and extensive industrial applications. This clear, colorless liquid is characterized by its low viscosity, high volatility, and excellent thermal stability, making it an essential component in various high-tech and manufacturing processes. As a member of the siloxane family, HMDSO combines the benefits of organic and inorganic chemistry, offering exceptional performance in surface modification, coating applications, and as a precursor in chemical synthesis.
One of the primary uses of Hexamethyldisiloxane is in the semiconductor and electronics industries, where it serves as a crucial material for plasma-enhanced chemical vapor deposition (PECVD) processes. When subjected to plasma treatment, HMDSO forms thin, uniform silicon oxide or silicon carbide films that are integral to microelectronic device fabrication. These films provide excellent dielectric properties, moisture resistance, and thermal insulation, making them ideal for integrated circuit production, MEMS devices, and optical coatings. The compound's ability to create pinhole-free, conformal coatings at relatively low temperatures has made it particularly valuable in advanced nanotechnology applications.
In the realm of surface treatment and modification, Hexamethyldisiloxane demonstrates remarkable effectiveness as a hydrophobizing agent. When applied to various substrates including glass, metals, and polymers, it forms durable, water-repellent surfaces without significantly altering the material's original properties. This characteristic has led to its widespread adoption in automotive applications for creating anti-fog coatings on mirrors and windows, as well as in architectural materials for water-resistant surfaces. The textile industry utilizes HMDSO treatments to produce stain-resistant fabrics, while the medical field employs it to modify the surface properties of diagnostic devices and surgical instruments.
Classification:
Key words:
Hexamethyldisiloxane
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