| Product Identification | Back to Contents | 【Product Name】
Methyltriethoxysilane | 【Synonyms】
Dynasylan MTES
Methyltriethoxysilane
Monomethyltriethoxysilane
Silquest A
Triethoxysilylmethane | 【CAS】
2031-67-6 | 【Formula】
C7H18O3Si | 【Molecular Weight】
178.31 | 【EINECS】
217-983-9 | 【RTECS】
VV4640000 | 【RTECS Class】
Organometallic; Primary Irritant | 【Beilstein/Gmelin】
1742453 | 【Beilstein Reference】
4-04-00-04204 | 【EC Class】
flammable |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Clear, colorless liquid. | 【Solubility in water】
Insoluble | 【Melting Point】
-50 | 【Boiling Point】
143 - 145 | 【Vapor Pressure】
6.4 (25 C) | 【Density】
0.89 g/cm3 | 【Partition Coefficient】
1.73 | 【Heat Of Vaporization】
36.6 kJ/mol | 【Heat Of Combustion】
-5176 kJ/mol | 【Vapor Density】
6.15 | 【Refractive Index】
1.3813 |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. | 【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. |
| Handling and Storage | Back 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】
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. 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 Identification | Back to Contents | 【Inhalation】
Causes respiratory tract irritation. Vapors may cause dizziness or suffocation. Can produce delayed pulmonary edema. May cause burning sensation in the chest. | 【Skin】
Causes mild skin irritation. May cause cyanosis of the extremities. | 【Eyes】
Causes mild 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. | 【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. | 【EC Risk Phrase】
R 10 36/37/38 | 【EC Safety Phrase】
S 16 26 36/37/39 | 【UN (DOT)】
1993 |
| Exposure Controls/Personal Protection | Back 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】
Prolonged or repeated skin contact may cause dermatitis. Effects may be delayed. | 【Poison Class】
4 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
24 | 【Autoignition】
220 | 【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. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. This material is lighter than water. | 【Fire Potential】
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. 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 Reactivity | Back to Contents | 【Disposal Code】
1 | 【Incompatibilities】
Moisture, strong oxidizing agents, strong acids. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, silicon oxide. | 【Combustion Products】
Fire may produce irritating, corrosive and/or toxic gases. |
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