| Product Identification | Back to Contents | 【Product Name】
Trimethoxysilylpropanethiol | 【Synonyms】
3-(Sulfanylpropyl)trimethoxysilane
3-(Trimethoxysilyl)-1-propanethiol
3-(Trimethoxysilyl)propyl mercaptan
Dynasylan NTNS
Prosil 196
Silquest A 189 | 【CAS】
4420-74-0 | 【Formula】
C6H16O3SSi | 【Molecular Weight】
196.34 | 【EINECS】
224-588-5 | 【RTECS】
TZ7800000 | 【RTECS Class】
Organometallic; Primary Irritant | 【Beilstein/Gmelin】
2038119 | 【EC Class】
harmful, sensitizing, dangerous for the environment |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Clear, colorless liquid. With a stench. | 【Solubility in water】
Slightly soluble | 【Melting Point】
-50 | 【Boiling Point】
215 | 【Vapor Pressure】
0.52 (25 C) | 【Density】
1.056 g/cm3 | 【pKa/pKb】
10.55 (pKa) | 【Partition Coefficient】
1.09 | 【Heat Of Vaporization】
41.6 kJ/mol | 【Usage】
Coupling agent. | 【Vapor Density】
6.77 | 【Refractive Index】
1.4441 (20 C) |
| First Aid Measures | Back 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】
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 immediately. |
| 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. Store protected from moisture. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. 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 | 【Ingestion】
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. | 【Inhalation】
Aspiration may lead to pulmonary edema. Inhalation at high concentrations may cause CNS depression and asphixiation. | 【Skin】
Causes mild skin irritation. May cause dermatitis. May cause cyanosis of the extremities. | 【Eyes】
May cause eye irritation. May cause chemical conjunctivitis and corneal damage. | 【EC Risk Phrase】
R 22 51/53 | 【EC Safety Phrase】
S 28 36/37 60 61 | 【UN (DOT)】
3082 |
| 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. | 【Poison Class】
4 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
49 | 【Autoignition】
235 | 【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. Use water spray to keep fire-exposed containers cool. Combustible Liquid. Extinguishing media: Use water spray to cool fire-exposed containers. Do NOT get water inside containers. In case of fire, use carbon dioxide, dry chemical powder or appropriate foam. | 【Upper exp. limit】
44 | 【Lower exp. limit】
5.5 |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Remove all sources of ignition. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Use a spark-proof tool. Provide ventilation. Do not get water inside containers. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
6 | 【Stability】
Stable under normal temperatures and pressures. Moisture sensitive. | 【Incompatibilities】
Strong oxidizing agents, strong acids, alcohols, moisture, water. | 【Decomposition】
Carbon monoxide, oxides of sulfur, carbon dioxide, silicon oxide. |
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