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Diethoxydimethylsilane(78-62-6)

Diethoxydimethylsilane(78-62-6)
Product IdentificationBack to Contents
【Product Name】

Diethoxydimethylsilane
【Synonyms】

Diethoxy(dimethyl)silane
Diethoxydimethylsilane
【CAS】

78-62-6
【Formula】

C6H16O2Si
【Molecular Weight】

148.31
【EINECS】

201-127-6
【RTECS】

VV3590000
【RTECS Class】

Primary Irritant
【Beilstein/Gmelin】

1736110
【Beilstein Reference】

4-04-00-04101
Physical and Chemical PropertiesBack to Contents
【Appearance】

A colorless liquid.
【Solubility in water】

Soluble
【Melting Point】

-87
【Boiling Point】

114
【Vapor Pressure】

24 (25 C)
【Density】

0.853 g/cm3 (20 C)
【Partition Coefficient】

.61
【Heat Of Vaporization】

33.8 kJ/mol
【Heat Of Combustion】

-4769 kJ/mol
【Usage】

Monomer for the synthesis of polycarbosiloxanes.
【Vapor Density】

5.11
【Refractive Index】

1.3820 (20 C)
First Aid MeasuresBack to Contents
【Ingestion】

Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
【Inhalation】

Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
【Skin】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Handling and StorageBack to Contents
【Storage】

Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area. Store protected from moisture.
【Handling】

Use only in a well ventilated area. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not allow contact with water. Use only in a chemical fume hood. Wash clothing before reuse. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Keep from contact with moist air and steam.
Hazards IdentificationBack to Contents
【Inhalation】

Causes respiratory tract irritation. Aspiration may lead to pulmonary edema. Vapors may cause dizziness or suffocation. May cause burning sensation in the chest. May cause nausea, headache, and vomiting.
【Skin】

May cause irritation and dermatitis. May cause cyanosis of the extremities.
【Eyes】

Causes eye irritation. May cause chemical conjunctivitis and corneal damage.
【Ingestion】

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Ingestion of large amounts may cause CNS depression. May cause dizziness and headache.
【Hazards】

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
【EC Risk Phrase】

R 11 36/37/38
【EC Safety Phrase】

S 16 26 36
【UN (DOT)】

2380
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
【Exposure Effects】

Effects may be delayed.
【Poison Class】

4
Fire Fighting MeasuresBack to Contents
【Flash Point】

11
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT get water inside containers. Do NOT use straight streams of water. In case of fire, use carbon dioxide, dry chemical powder or appropriate foam.
【Fire Potential】

HIGHLY FLAMMABLE.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Cover with sand, dry lime or soda ash and place in a closed container for disposal. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. Do not get water inside containers. A vapor suppressing foam may be used to reduce vapors.
Stability and ReactivityBack to Contents
【Incompatibilities】

Moisture, water, strong oxidizing agents, strong acids.
【Stability】

Stable at room temperature in closed containers under normal storage and handling conditions. Moisture sensitive.
【Decomposition】

Carbon monoxide, carbon dioxide, silicon oxide, acrid smoke and fumes.
【Combustion Products】

Fire may produce irritating, corrosive and/or toxic gases.
Transport InformationBack to Contents
【UN Number】

2380
【Hazard Class】

3
【Packing Group】

II
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