DMDES
Diethoxydimethylsilane
CAS: 78-62-6
Molecular Formula: C6H16O2Si
DMDES - Names and Identifiers
| Name | Diethoxydimethylsilane |
| Synonyms | DMDES EXP-49 CD5600 DiethoxydimethyL Diethoxydimethylsilane Dimethyl-diethoxysilan Dimethyldiethoxysilane diethoxydimethyl-silan dimethyldiethoxylsilane DIETHOXYDIMETHYLSILICANE dimethylsilicondiethoxide Dimethyl diethoxy silicane |
| CAS | 78-62-6 |
| EINECS | 201-127-6 |
| InChI | InChI=1/C6H16O2Si/c1-5-7-9(3,4)8-6-2/h5-6H2,1-4H3 |
DMDES - Physico-chemical Properties
| Molecular Formula | C6H16O2Si | ||||||||
| Molar Mass | 148.28 | ||||||||
| Density | 0.865 g/mL at 25 °C (lit.) | ||||||||
| Melting Point | -97°C | ||||||||
| Boling Point | 114 °C (lit.) | ||||||||
| Flash Point | 53°F | ||||||||
| Water Solubility | may decompose | ||||||||
| Vapor Presure | 7-7910Pa at 20-25℃ | ||||||||
| Appearance | liquid | ||||||||
| Specific Gravity | 0.939 | ||||||||
| Color | ≤25(APHA) | ||||||||
| BRN | 1736110 | ||||||||
| Storage Condition | Flammables area | ||||||||
| Sensitive | Moisture Sensitive | ||||||||
| Refractive Index | n20/D 1.381(lit.) | ||||||||
| Physical and Chemical Properties |
| ||||||||
| Use | It is used as a structure control agent in the preparation of silicone rubber, a chain extender in the synthesis of silicone products and a raw material for the synthesis of silicone oil. It is an important raw material for the production of silicone resin, benzyl silicone oil and waterproof agent. At the same time, it is easy to hydrolyze and can form alkali metal silicon alkoxide with alkali metal hydroxide. And can be used for the crosslinking agent of room temperature vulcanized silicone rubber. |
DMDES - Risk and Safety
| Risk Codes | R11 - Highly Flammable R36/38 - Irritating to eyes and skin. R20 - Harmful by inhalation |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S16 - Keep away from sources of ignition. |
| UN IDs | UN 1993 3/PG 2 |
| WGK Germany | 2 |
| RTECS | VV3590000 |
| TSCA | Yes |
| HS Code | 29319090 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 oral in rat: 9280mg/kg |
DMDES - Reference Information
| LogP | -0.4-3 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | used as a structure control agent in the preparation of silicone rubber, a chain extender in the synthesis of silicone products and a raw material for the synthesis of silicone oil. It is an important raw material for the production of silicone resin, benzyl silicone oil and waterproof agent. At the same time, it is easy to hydrolyze and can form alkali metal silicon alkoxide with alkali metal hydroxide. And can be used for the crosslinking agent of room temperature vulcanized silicone rubber. It is used as a chemical reagent and a raw material for the synthesis of polymeric organosilicon compounds. |
| category | flammable liquid |
| toxicity grade | low toxicity |
| Acute toxicity | oral-rat LD50: 9280 mg/kg; Inhalation-rat LD50: 20g/m3/8 h |
| stimulation data | Skin-rabbits 500 mg/24 h mild; eye-rabbit 500 mg/24 h mild |
| flammability hazard characteristics | in case of open flame, high temperature, flammable oxidant; Combustion stimulus smoke |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Stored separately from oxidants and acids |
| extinguishing agent | dry powder, dry sand, dry stone powder, carbon dioxide |
Last Update：2024-04-09 15:16:52
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