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N-trimethylsilylimidazole 18156-74-6 MSDS
Name: n-(Trimethylsilyl)-imidazole 98% Material Safety Data Sheet
Synonym: TSIM
CAS: 18156-74-6
Section 1 - Chemical Product   MSDS Name:n-(Trimethylsilyl)-imidazole 98% Material Safety Data Sheet
Synonym:TSIM

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
18156-74-6 n-(Trimethylsilyl)-imidazole 98 242-040-3
Hazard Symbols: XI F
Risk Phrases: 11 36/37/38

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Highly flammable. Irritating to eyes, respiratory system and skin.The toxicological properties of this material have not been fully investigated.Moisture sensitive.Highly flammable.
Potential Health Effects
Eye:
Causes eye irritation. May cause chemical conjunctivitis and corneal damage.
Skin:
Causes skin irritation. May cause cyanosis of the extremities.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated. Ingestion of large amounts may cause CNS depression.
Inhalation:
Causes respiratory tract irritation. May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Aspiration may lead to pulmonary edema.
Vapors may cause dizziness or suffocation. May cause burning sensation in the chest.
Chronic:
No information found.

Section 4 - FIRST AID MEASURES
  Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. Do NOT use mouth-to-mouth resuscitation.
Notes to Physician:
Treat symptomatically and supportively.

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire.
Containers may explode in the heat of a fire. Flammable liquid and vapor. Will be easily ignited by heat, sparks or flame. Containers may explode if exposed to fire.
Extinguishing Media:
Use foam, dry chemical, or carbon dioxide. Water may be ineffective.
Water may spread fire. If water is the only media available, use in flooding amounts. Do NOT get water inside containers. Do NOT use straight streams of water. Cool containers with flooding quantities of water until well after fire is out.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. 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.

Section 7 - HANDLING and STORAGE
  Handling:
Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Take precautionary measures against static discharges. Keep container tightly closed. Keep away from heat, sparks and flame. Avoid ingestion and inhalation. 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.
Storage:
Keep away from sources of ignition. Store in a tightly closed container. Store in a dry area. Keep under a nitrogen blanket.
Refrigerator/flammables. Store protected from moisture.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. Use adequate general or local explosion-proof ventilation to keep airborne levels to acceptable levels.
Exposure Limits CAS# 18156-74-6: United Kingdom, WEL - TWA: (listed as silica, amorphous): 6 mg/m3 (inhalable dust); 2.4 mg/m3 TWA (respirable dust) United Kingdom, WEL - STEL: (listed as silica, amorphous): 18 mg/ STEL (inhalable dust); 7.2 mg/m3 STEL (respirable dust) Russia: (listed as silica, amorphous): 1 mg/m3 TWA Personal Protective Equipment 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:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Liquid
Color: clear yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 93 - 94 deg C @ 13.00mm Hg
Freezing/Melting Point: Not available.
Autoignition Temperature: 540 deg C ( 1,004.00 deg F)
Flash Point: 5 deg C ( 41.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: decomposes in water
Specific Gravity/Density: .9560g/cm3
Molecular Formula: C6H12N2Si
Molecular Weight: 140.26

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Ignition sources, excess heat, exposure to moist air or water.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong acids.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide, silicon dioxide.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 18156-74-6: NI8700000 LD50/LC50:
Not available.
Carcinogenicity:
n-(Trimethylsilyl)-imidazole - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
 

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: FLAMMABLE LIQUID, N.O.S.*
Hazard Class: 3
UN Number: 1993
Packing Group: II
IMO
Shipping Name: FLAMMABLE LIQUID, N.O.S.
Hazard Class: 3.2
UN Number: 1993
Packing Group: II
RID/ADR
Shipping Name: FLAMMABLE LIQUID, N.O.S.
Hazard Class: 3
UN Number: 1993
Packing group: II

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI F
Risk Phrases:
R 11 Highly flammable.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 16 Keep away from sources of ignition - No
smoking.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37/39 Wear suitable gloves and eye/face
protection.
WGK (Water Danger/Protection)
CAS# 18156-74-6: No information available.
Canada
CAS# 18156-74-6 is listed on Canada's DSL List.
CAS# 18156-74-6 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 18156-74-6 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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