N,N-Disilylsilanamine

Guidance on Safe Use

First-aid measures

Inhalation:

Remove the affected person from the source or contaminated area. Note: Personal Protective Equipment (PPE), including positive pressure, self contained breathing apparatus, may be required to assure the safety of the rescuer. If the affected person is not breathing spontaneously, administer rescue breathing. If the affected person does not have a pulse, administer CPR. If medical oxygen and appropriately trained personnel are available, administer 100% oxygen to the affected person. Summon an emergency ambulance. If an ambulance is not available, contact a physician, hospital, or poison control center for instruction. Keep victim warm. Monitor breathing and pulse continuously.

Eye Contact:

Flush continuously with clean water until the professional medical assistance arrives, but for no less than thirty minutes. Continuation of flushing until patient is transferred to an ophthalmologist or emergency physician is recommended. Assume the patient has also been exposed by inhalation and obtain professional medical assistance immediately.

Skin Contact:

Flush with a copious stream of water while removing contaminated clothing. Continue flushing until the professional medical assistance arrives, but for no less than fifteen minutes. Treat thermal burns by assuring that affected area is cool by flushing with cool water, and then apply wet bandages. If the patient is burned on the face, neck, head, or chest, assume that the airway may also have been burned and obtain professional medical assistance immediately.

Ingestion:

Highly to severely toxic. See First Aid Measures for Skin Contact and seek professional medical assistance immediately. May cause severe burns of the mouth, throat, esophagus, and stomach. There may be pain in the mouth, throat, chest, and abdomen and possible swelling of the tissues in the mouth and throat. Do not induce vomiting unless directed to do so by medical personnel. Do not drink any other diluents (e.g., water). Never give anything by mouth to an unconscious person May cause thermal burns to gastrointestinal tract.

Most important symptoms and effects, both acute and delayed

Skin and mucous membrane irritation, lacrimation (tearing), cough, increased saliva and sputum production, dyspnea (difficulty in breathing). Suspected to cause headache and nausea.

Fire-fighting measures

Suitable extinguishing media  - CO2, foam, dry chemical. Note: This material reacts violently with water.

Unsuitable extinguishing media - No data available

Special hazards arising from the substance or mixture

Hazardous Combustion Products - Silicon oxide (silica), Oxides of nitrogen

Special Hazards Arising from the Substance - No data available

Fire Fighting Methods and Protection:

The only safe way to extinguish a fire of this material is to stop the flow of liquid. If the flow cannot be stopped, allow the entire contents of the container or cylinder to burn. Cool the containers and surroundings with water from a suitable safe distance. Extinguishing the fire without stopping the flow of material may permit the formation of ignitable or explosive mixtures with air. These mixtures may propagate to a source of ignition. Excessive pressure may develop in containers exposed to fire, which may result in explosion, regardless of the container's content. Containers with pressure relief devices (PRD's) may release their contents through such devices if the container is exposed to fire. Positive pressure, self contained breathing apparatus is required for all fire fighting involving hazardous materials. Full structural firefighting (bunker) gear is the minimum acceptable attire. The need for proximity, entry, and flashover protection and special protective clothing should be determined for each incident by a competent firefighting safety professional.

Accidental release measures

Personal precautions, protective equipment and emergency procedures

For non-emergency personnel:

In case of a spill, clear the affected area, protect people, and respond with trained personnel.

For emergency responders:

Exposure to the spilled material may be severely irritating or toxic. Follow personal protective equipment recommendations found in Section 8 of this SDS. Personal protective equipment needs must be evaluated based on information provided on this sheet and the special circumstances created by the spill including; the material spilled, the quantity of the spill, the area in which the spill occurred, and the expertise of employees in the area responding to the spill. Never exceed any occupational exposure limits.Most, but not all, releases of Trisilylamine into air will react to form silicon oxide, a white powder that may be suspended in the air if produced in this manner. As all leaks might not react, consider the formation of ignitable or explosive mixtures with air.If the release is not contained in an appropriate device or system, all personnel not appropriately protected (see Section 8) must evacuate the contaminated spaces. Consider evacuation of additional areas, as a precaution against the spread of the release or subsequent explosion or fire.

Methods and material for containment and cleaning up:

Prevent the spread of any spill to minimize harm to human health and the environment if safe to do so. Wear complete and proper personal protective equipment following the recommendation of Section 8 at a minimum. Dike with suitable absorbent material like granulated clay. Gather and store in a sealed container pending a waste disposal evaluation. Do not discharge this material directly to surface waters or sewer systems. Instead, try to dike or contain any spilled liquid. To diminish fumes apply an appropriate solution of vapor-suppression foam expanded per manufacturer's instructions. Periodic reapplication of the foam may be necessary. Under the CERCLA/RCRA regulations this material is regulated as a hazardous waste or material. Therefore it must be disposed of in a licensed hazardous waste facility in compliance with EPA and other applicable local, state and federal regulations. It should be handled in a manner acceptable to good waste management practices. Immediately evacuate all personnel from danger area. Do not approach area without self-contained breathing apparatus and protective clothing. Vapor may form explosive mixtures with air. Before entering area, especially a confined area, check atmosphere with an appropriate device. Remove all sources of ignition if without risk. Reduce vapors with coarse water spray. Shut off flow if without risk. Ventilate area or move cylinder to well-ventilated area. Prevent run off from contaminating the surrounding environment. Toxic, water-reactive, corrosive vapors may spread from spill. Do not turn on any ignition source until the area is determined to be free of fire or explosion hazard. If possible use sandbags to contain and isolate the burning liquid.

Handling and storage

Precautions for safe handling

Toxic or severely irritating material. Avoid contacting and avoid breathing the material. Use only in a well ventilated area. This product must be used under the direct supervision of a technically qualified individual. Handle this material only in sealed, purged systems. The design of handling systems for hazardous materials is beyond the scope of this SDS, and should be performed by a competent, experienced professional. Consider the use of double-contained piping; diaphragm or bellows sealed, soft seat valves; backflow prevention devices; flash arrestors; and flow monitoring or limiting devices. Gas cabinets, with appropriate exhaust treatment, are recommended, as is automatic monitoring of the secondary enclosures and work areas for release. Handle sealed gas cylinders in accordance with CGA P-1, Safe Handling of Compressed Gasses in Containers. Some material may have accumulated behind the outlet plug. Face the outlet away from you and wear appropriate protective equipment when removing the plug to connect the container to your system.

Never introduce any substance into a gas container. If you believe your container may have been contaminated, notify Air Liquide immediately. Provide as much information as possible on the nature and quantity of contamination.This material may be supplied in containers having both liquid and vapor withdrawal outlets and a helium blanket. Opening the liquid outlet without properly venting the helium blanket can cause the liquid to flow out of the container in an unexpected manner. The helium blanket should be vented to an appropriate control device before withdrawing liquid unless the helium blanket is to be intentionally used to propel the liquid from the liquid withdrawal outlet. Any helium vented can contain product and the vented mixture can be toxic, water reactive, corrosive and/or flammable.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:

UN3491

Shipping information

Proper shipping name and description:

TOXIC BY INHALATION LIQUID, WATER REACTIVE, FLAMMABLE, N.O.S.

Chemical name:

Trisilylamine

Language:

English

Labels:

6.1+3+4.3

SpecialProvisions

Shipping

Remarks

Marine transport (UN RTDG/IMDG)

UN number:

UN3491

Shipping information

Proper shipping name and description:

TOXIC BY INHALATION LIQUID, WATER REACTIVE, FLAMMABLE, N.O.S.

Chemical name:

Trisilylamine

Labels:

6.1, 4.3, 3

Remarks

Air transport (UN RTDG/ICAO/IATA)

UN number:

UN3491 - Forbidden for air transport

Shipping

Remarks

SpecialProvisions

Exposure controls / personal protection

Appropriate Engineering Measures

Local exhaust ventilation, process enclosures, or other engineering controls are necessary when handling or using this product to avoid overexposure. Local exhaust is required. Secondary containment, with appropriate exhaust gas treatment, is strongly encouraged and required in some jurisdictions.

Monitor the work area and the secondary containment for release of the material. Automatic alerting of personnel and automatic shutdown of flow are appropriate in most applications and are required in some jurisdictions. Purge all primary containment systems with a nonreactive gas, such as nitrogen, before introducing this material.

Personal protection equipment

A risk assessment should be carried out, prior to using this product, to assess the specific personal protection equipment required based on the hazard of the substance or mixture and potential for contact in accordance with the Council Directive 89/686/EEC and any appropriate CEN standards (including EN529:2005 for respiratory PPE, CEN/TR 15419:2006 for hand protection, and CR 13464:1999 for face/eye protection)

Eye and Face Protection

Wear chemically resistant safety glasses with side shields when handling this product. Do not wear contact lenses. When using respiratory protection as described above, use a face mask that provides splash and impact protection for the face and eyes. For handling sealed containers, wear safety glasses.

Skin Protection

Avoid skin contact by wearing chemically resistant gloves, an apron and other protective equipment depending upon conditions of use. Inspect gloves for chemical break-through and replace at regular intervals. Clean protective equipment regularly. Wash hands and other exposed areas with mild soap and water before eating, drinking, and when leaving work. When chemical contact is possible, use splash apron, work uniform, and shoes or coverlets to prevent skin contact. Full-body chemical protective clothing is recommended for emergency response procedures. Use gloves and other skin protection, as assigned by a competent safety professional, when working within the secondary enclosure with the primary enclosure compromised, e.g., cylinder or container changing, to protect from exposure to the material and from fire that may result from its release to the air. For response to demonstrated or suspected releases from the primary containment, the need for whole-body exposure protection should be determined by a competent safety professional. If a hazard of injury to the feet exists due to falling objects, rolling objects, where objects may pierce the soles of the feet or where employee’s feet may be exposed to electrical hazards, use foot protection, as described in appropriate regulations.

Hand Protection

Wear butyl rubber, Teflon™, Barricade™, Chemrel™, nitrile or similar gloves for routine industrial use. Use triple gloves for spill response.

Respiratory Protection

Respiratory protection must be used when handling this product. Use respirators only if ventilation cannot be used to eliminate symptoms or reduce the exposure to below acceptable levels. A supplied air type respirator may be required. Positive pressure, full face, air supplied breathing apparatus should be used for work within the secondary containment equipment if a leak is suspected or the primary containment is to be opened, e.g., for a cylinder or container change. Air supplied breathing apparatus is required for response to demonstrated or suspected releases from the primary containment.

Stability and reactivity

Chemical stability:- Stable under normal conditions.

Possibility of hazardous reactions:- Not reported to occur.

Conditions to avoid:- Sources of ignition, exposure to air or water,

Incompatible materials:- Oxidizing materials, Halogens, Alkalis, Water, Alcohols, Acids, Organohalides

Hazardous decomposition products:- Silicon oxide, Hydrogen, Oxides of nitrogen, Ammonia

Disposal considerations

Dispose of as hazardous waste in accordane with local and national regulations