MSDS Name:Lithium bis(trimethylsilyl)amide 20% in THF
Synonym:1,1,1,3,3,3-Hexamethyldisilazane lithium sal

EMERGENCY OVERVIEW
Highly flammable. Reacts violently with water. May form explosive peroxides. Causes severe burns. Irritating to eyes and respiratory system.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns.
Ingestion:
Causes gastrointestinal tract burns.
Inhalation:
Causes chemical burns to the respiratory tract.
Chronic:
Not available.

Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid immediately. If water-reactive products are embedded in the skin, no water should be applied. The embedded products should be covered with a light oil.
Ingestion:
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 and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Treat symptomatically and supportively.

General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Forms peroxides of unknown stability. Flammable liquid and vapor.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Do NOT use carbon dioxide. Use dry chemical to fight fire. DO NOT USE WATER!

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. Remove all sources of ignition.
Use a spark-proof tool.

Handling:
Use spark-proof tools and explosion proof equipment. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Storage:
Keep away from sources of ignition. Store in a cool, dry place.
Store in a tightly closed container. Water free area. Store under an inert atmosphere.

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.
Exposure Limits CAS# 100-41-4: United Kingdom, WEL - TWA: 100 ppm TWA; 441 mg/m3 TWA United Kingdom, WEL - STEL: 125 ppm STEL; 552 mg/m3 STEL United States OSHA: 100 ppm TWA; 435 mg/m3 TWA Belgium - TWA: 100 ppm VLE; 442 mg/m3 VLE Belgium - STEL: 125 ppm VLE; 551 mg/m3 VLE France - VME: 100 ppm VME; 435 mg/m3 VME Germany: 100 ppm TWA; 440 mg/m3 TWA Germany: Skin absorber Japan: 50 ppm OEL; 217 mg/m3 OEL Malaysia: 100 ppm TWA; 434 mg/m3 TWA Netherlands: 50 ppm MAC; 215 mg/m3 MAC Russia: 50 mg/m3 TWA Spain: 100 ppm VLA-ED; 441 mg/m3 VLA-ED Spain: 200 ppm VLA-EC; 884 mg/m3 VLA-EC CAS# 109-99-9: United Kingdom, WEL - TWA: 50 ppm TWA; 150 mg/m3 TWA United Kingdom, WEL - STEL: 100 ppm STEL; 300 mg/m3 STEL United States OSHA: 200 ppm TWA; 590 mg/m3 TWA Belgium - TWA: 200 ppm VLE; 599 mg/m3 VLE Belgium - STEL: 100 ppm VLE; 300 mg/m3 VLE France - VME: 200 ppm VME; 590 mg/m3 VME Germany: 50 ppm TWA; 150 mg/m3 TWA Germany: Skin absorber Japan: 200 ppm OEL; 590 mg/m3 OEL Malaysia: 200 ppm TWA; 590 mg/m3 TWA Netherlands: 100 ppm MAC; 300 mg/m3 MAC Russia: 100 mg/m3 TWA Spain: 50 ppm VLA-ED; 150 mg/m3 VLA-ED Spain: 100 ppm VLA-EC; 300 mg/m3 VLA-EC CAS# 4039-32-1: 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: Not available.
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.

Physical State: Liquid
Color: Not available.
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: -21 deg C ( -5.80 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Reacts.
Specific Gravity/Density: 0.89
Molecular Formula: C6H19LiNSi2
Molecular Weight: 168.2517

Chemical Stability:
Prolonged exposure to air and sunlight may form unstable peroxides.
Explosive peroxides may form on concentration. Peroxides can be detonated by friction, impact, or heating. Peroxide formation may occur in containers that have been opened and remain in storage.
Normally stable; however, on long term storage, materials containing similar functional groups form peroxides of unknown stability.
Conditions to Avoid:
Incompatible materials, contact with water.
Incompatibilities with Other Materials:
Oxidizing agents, acids.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported.

RTECS#:
CAS# 100-41-4: DA0700000 CAS# 109-99-9: LU5950000 CAS# 4039-32-1 unlisted.
LD50/LC50:
CAS# 100-41-4: Draize test, rabbit, eye: 500 mg Severe; Inhalation, mouse: LC50 = 35500 mg/m3/2H; Inhalation, rat: LC50 = 55000 mg/m3/2H; Oral, rat: LD50 = 3500 mg/kg; Oral, rat: LD50 = 3500 mg/kg; Skin, rabbit: LD50 = 17800 uL/kg.
CAS# 109-99-9: Inhalation, rat: LC50 = 21000 ppm/3H; Oral, rat: LD50 = 1650 mg/kg.
CAS# 4039-32-1.
Carcinogenicity:
Ethylbenzene - ACGIH: A3 - Confirmed animal carcinogen with unknown relevance to California: carcinogen, initial date 6/11/04 IARC: Group 2B carcinogen Tetrahydrofuran - ACGIH: A3 - Confirmed animal carcinogen with unknown relevance to Lithium bis(trimethylsilyl)amide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Dispose of in a manner consistent with federal, state, and local regulations.

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.
USA RQ: CAS# 100-41-4: 1000 lb final RQ; 454 kg final RQ
USA RQ: CAS# 109-99-9: 1000 lb final RQ; 454 kg final RQ

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: F C
Risk Phrases:
R 11 Highly flammable.
R 14 Reacts violently with water.
R 19 May form explosive peroxides.
R 35 Causes severe burns.
R 36/37 Irritating to eyes and respiratory system.
Safety Phrases:
S 16 Keep away from sources of ignition - No
smoking.
S 29 Do not empty into drains.
S 33 Take precautionary measures against static
discharges.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 100-41-4: 1
CAS# 109-99-9: 1
CAS# 4039-32-1: No information available.
Canada
CAS# 100-41-4 is listed on Canadas DSL List.
CAS# 109-99-9 is listed on Canadas DSL List.
CAS# 4039-32-1 is listed on Canadas NDSL List.
CAS# 100-41-4 is listed on Canadas Ingredient Disclosure List.
CAS# 109-99-9 is listed on Canadas Ingredient Disclosure List.
CAS# 4039-32-1 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 100-41-4 is listed on the TSCA inventory.
CAS# 109-99-9 is listed on the TSCA inventory.
CAS# 4039-32-1 is listed on the TSCA inventory.