Lithium bis(trimethylsilyl)amide

  • Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, lithium salt
Formula
C6H19LiNSi2
Structure
Description
White solid. Slight odor.

Registry Numbers and Inventories.
CAS
4039-32-1
EC (EINECS/ELINCS)
223-725-6
R 11 14 19 34
S 26 36/37/39 43 45
UN (DOT)
2924
Beilstein/Gmelin
3567910
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed

Properties.
Formula
C6H18NSi2*Li
Formula mass
168.33
Melting point, °C
105 - 107
Boiling point, °C
80 - 84 (0.01 torr)
Density
0.89 g/cm3

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket. Flammables-area.
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.
Protection
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 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.
Stability
Stable at normal temperatures in tightly closed containers under an inert atmosphere.
Incompatibilities
Strong oxidizing agents, acids, alcohols, ketones (e.g. acetone, acetophenone, MEK, MIBK), esters (e.g. butyl acetate, ethyl acetate, propyl formate), halogens, carbon dioxide.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, silicon oxide, lithium hydroxide, ammonia.

Fire.
Flash Point,°C
-21
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Flammable solid. Extinguishing media: Use foam, dry chemical, or carbon dioxide. DO NOT USE WATER!

Health.
Exposure effects
   Ingestion
Causes gastrointestinal tract burns. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. Causes chemical burns to the respiratory tract. The toxicological properties of this substance have not been fully investigated. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema.
   Skin
Causes skin burns.
   Eyes
Causes eye burns.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   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 immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
2924
Response guide