Lithiumbis(trimethylsilyl)amide

Guidance on Safe Use

First-aid measures

Description of first aid measures:

General advice:

- First-aid crew: Ensure self-protection.

- Move out of dangerous area.

- Take off contaminated clothing and shoes immediately.

If inhaled:

- Move to fresh air.

- Consult a physician.

In case of skin contact:

- Wash off immediately with plenty of water for at least 15 minutes.

- Call a physician immediately.

In case of eye contact:

- Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes.

- Call a physician immediately.

If swallowed:

- Rinse mouth with water.

- Immediately give large quantities of water to drink.

- Do NOT induce vomiting.

- Call a physician immediately.

Most important symptoms and effects, both acute and delayed:

Symptoms:

- Symptoms of poisoning may not appear for several hours.

- Keep under medical supervision for at least 48 hours.

Indication of any immediate medical attention and special treatment needed:

Treatment:

- Treat symptomatically.

- For specialist advice physicians should contact the Poisons Information Service.

Fire-fighting measures

Extinguishing media:

Suitable extinguishing media:

- Dry sodium chloride

- Limestone powder

Unsuitable extinguishing media:

- Water

- Carbon dioxide (CO2)

- Foam

Special hazards arising from the substance or mixture:

Specific hazards during fire fighting:

- May form toxic gases on heating or in case of fire.

Advice for firefighters:

Special protective equipmentfor fire-fighters:

-  In the event of fire, wear self-contained breathing apparatus.

Further information:

- Use water spray to cool unopened containers.

- Be aware of a dangerous reaction with water, if the container is ruptured.

- Collect contaminated fire extinguishing water separately. This must not be discharged into drains.

- Fire residues and contaminated fire extinguishing water must be disposed of in accordance with local regulations.

Accidental release measures

Personal precautions, protective equipment and emergency procedures:

Personal precautions:

- Wear personal protective equipment.

- Evacuate personnel to safe areas.

- Avoid dust formation.

- Remove all sources of ignition.

- Do not smoke.

Environmental precautions:

- Do not flush into surface water or sanitary sewer system.

- Should not be released into the environment.

- If the product contaminates rivers and lakes or drains inform respective authorities.

Methods and materials for containment and cleaning up:

Methods for cleaning up:

- Never allow contact with water.

- Cover spilled material with limestone powder.

- Use mechanical handling equipment.

- Keep in suitable, closed containers for disposal.

Reference to IUCLID section 11 subtitle:

- Exposure controls/personal protection

- Disposal considerations

Handling and storage

Precautions for safe handling:

Advice on safe handling:

- Handle under inert gas.

- Never allow water to come into contact with the product.

- Do not breathe dust.

- Avoid contact with skin and eyes.

- Have eye wash bottle or eye rinse ready at the work place.

Advice on protection against fire and explosion:

- Keep away from sources of ignition - No smoking.

- Take precautions against dust explosion.

Conditions for safe storage, including any incompatibilities:

Requirements for storage areas and containers:

- Keep under inert gas.

- Keep container tightly closed in a dry and well-ventilated place.

- Protect from humidity and water.

Further information on storage conditions:

- Handle under nitrogen, protect from moisture.

Specific end uses:

Specific use(s):

- Reagent for organic synthesis.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:

2925

Shipping information

Proper shipping name and description:

FLAMMABLE SOLID, CORROSIVE, ORGANIC, n.o.s., Lithium hexamethyldisilazide

Chemical name:

Lithium bis(trimethylsilyl)amide

Language:

English

Labels:

4.1 (8)

Special provisions / remarks

Special provisions:

Hazard identification No :
- 48

Tunnel restriction code:
- (E),

Environmentally hazardous:
- no

Remarks:

Not applicable

Inland waterway transport (UN RTDG/ADN(R))

UN number:

Not applicable

Shipping information

Proper shipping name and description:

FLAMMABLE SOLID, CORROSIVE, ORGANIC, n.o.s., Lithium hexamethyldisilazide

Chemical name:

Lithium bis(trimethylsilyl)amide

Language:

English

Labels:

Not applicable

Special provisions / remarks

Remarks:

Not applicable

Marine transport (UN RTDG/IMDG)

UN number:

2925

Shipping information

Proper shipping name and description:

FLAMMABLE SOLID, CORROSIVE, ORGANIC, n.o.s., Lithium hexamethyldisilazide

Chemical name:

Lithium bis(trimethylsilyl)amide

Labels:

4.1 (8)

Special provisions / remarks

Remarks:

Not applicable

Air transport (UN RTDG/ICAO/IATA)

UN number:

2925

Shipping information

Proper shipping name and description:

FLAMMABLE SOLID, CORROSIVE, ORGANIC, n.o.s., Lithium hexamethyldisilazide

Chemical name:

Lithium bis(trimethylsilyl)amide

Labels:

4.1 (8)

Remarks

Additional transport information

Additional information

Special provisions / remarks / other:

IATA:
Packing instruction (cargo aircraft): 448
IATA_C
Environmentally hazardous: no
Packing instruction (passenger aircraft): 445
IATA_P
Environmentally hazardous: no

Exposure controls / personal protection

Exposure controls:

Engineering measures:

- Never allow water to come into contact with the product.

- Ensure adequate ventilation, especially in confined areas.

- Dust must be extracted directly at the point of origin.

- Electrical equipment should be protected to the appropriate standard.

Personal protective equipment:

Respiratory protection:

- In case of insufficient ventilation, wear suitable respiratory equipment.

- Recommended Filter type: Half mask with a particle filter P2 (EN 143).

Hand protection:

- Flame retardant gloves

- Protective gloves complying with EN 374.

- The exact break through time can be obtained from the protective glove producer and this has to be observed.

- Protective gloves have to be replaced at the first sign of deterioration.

Eye protection:

- Eye protection (EN 166)

- Tightly fitting safety goggles

Skin and body protection:

- Flame retardant antistatic protective clothing

Hygiene measures:

- Take off contaminated clothing and shoes immediately.

- Do not breathe dust.

- Avoid contact with the skin and the eyes.

- Keep away from food, drink and animal feedingstuffs.

- When using, do not eat, drink or smoke.

- Wash hands before breaks and immediately after handling the product.

Protective measures:

- Facilities storing or utilizing this material should be equipped with an eyewash facility and safety shower.

- Handle in accordance with good industrial hygiene and safety practice.

Environmental exposure controls:

General advice:

- Do not flush into surface water or sanitary sewer system.

- Should not be released into the environment.

- If the product contaminates rivers and lakes or drains inform respective authorities.

Stability and reactivity

Reactivity:

- Decomposes in contact with water.

Chemical stability:

- Decomposes on heating.

- Sensitive to air.

- Decomposition under influence of moisture is highly accelerated by heating.

Possibility of hazardous reactions:

Hazardous reactions:

- Decomposes when moist.

Conditions to avoid:

- Keep away from open flames, hot surfaces and sources of ignition.

- Protect from moisture.

- Product is hygroscopic.

Incompatible materials:

Materials to avoid:

- Water

- Acids

- Oxidizing agents

Hazardous decomposition products:

Risk of decomposition:

- Decomposes in contact with water.

- Lithium hydroxide

- Hexamethyldisilazane

Thermal decomposition:

- > 200 °C

Disposal considerations

Waste treatment methods:

Product:

- If recycling is not practicable, dispose of in compliance with local regulations.

Contaminated packaging:

- Refer to manufacturer/supplier for information on recovery/recycling.

Waste Code:

- Waste codes should be assigned by the user, preferably in discussion with the waste disposal authorities.