Dichlorodiethylsilane
Pharmaceutical Materials 2025-03-02
CAS Number: 1719-53-5
Molecular Formula: C4H10Cl2Si
Molecular Weight: 157.11 g/mol
Appearance: Colorless liquid
Boiling Point: 127.798 °C at 760 mmHg
Flash Point: 28.333 °C
Usage: Primarily used as an intermediate in the production of silicones.
| Attribute | Details |
|---|---|
| Chemical Name | Dichlorodiethylsilane |
| Synonyms | Diethyldichlorosilane; DES; (C2H5)2SiCl2; etc. |
| CAS Number | 75-59-2 |
| Molecular Formula | C4H10Cl2Si |
| Molecular Weight | 149.11 g/mol |
| Appearance | Colorless to yellowish liquid |
| Odor | Characteristic odor |
| Density | 1.048 g/mL at 25°C |
| Melting Point | -95°C |
| Boiling Point | 146.5°C |
| Flash Point | 35°C |
| Solubility | Soluble in organic solvents such as ether, toluene, and hexane; reacts with water to produce HCl and silanol |
| Main Uses | 1. As a precursor in the synthesis of silicone polymers and copolymers. 2. In the preparation of silane coupling agents. 3. As a cross-linking agent in silicone rubber formulations. 4. In the production of silicone-based surfactants and other silicone derivatives. |
| Stability | Stable under normal conditions. Reacts with water, acids, bases, and oxidizing agents. |
| Safety Information | Dichlorodiethylsilane is flammable and can form explosive mixtures with air. It is toxic and can cause skin and eye irritation. It may cause respiratory distress and central nervous system depression. Handle with appropriate personal protective equipment and follow safety instructions and regulations for handling, storage, and disposal. Store in a cool, dry, well-ventilated area, away from incompatible materials and ignition sources. |
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