Tris(dimethylamino)silane

TDMAS

CAS #:

Linear Formula:

((CH3)2N)3SiH

MDL Number:

MFCD00048006

EC No.:

239-165-0

ORDER

PRODUCT Product Code ORDER SAFETY DATA TECHNICAL DATA
(2N) 99% Tris(dimethylamino)silane
SI-OMX-02
Pricing > SDS > Data Sheet >
(2N5) 99.5% Tris(dimethylamino)silane
SI-OMX-025
Pricing > SDS > Data Sheet >
(3N) 99.9% Tris(dimethylamino)silane
SI-OMX-03
Pricing > SDS > Data Sheet >
(3N5) 99.95% Tris(dimethylamino)silane
SI-OMX-035
Pricing > SDS > Data Sheet >
(4N) 99.99% Tris(dimethylamino)silane
SI-OMX-04
Pricing > SDS > Data Sheet >
(5N) 99.999% Tris(dimethylamino)silane
SI-OMX-05
Pricing > SDS > Data Sheet >

Tris(dimethylamino)silane Properties (Theoretical)

Compound Formula C6H19N3Si
Molecular Weight 161.32
Appearance Colorless Liquid
Melting Point −90 °C
Boiling Point 142 °C
Density 0.838 g/mL at 25 °C
Solubility in H2O Not miscible or difficult to mix
Exact Mass 160.126999
Monoisotopic Mass 160.126999

Tris(dimethylamino)silane Health & Safety Information

Signal Word Danger
Hazard Statements H225-H261-H302-H311-H314-H330
Hazard Codes F,C,T+
Risk Codes 11-15-20-29-34-52/53
Safety Statements 16-26-36/37/39-43-45
RTECS Number VV5800000
Transport Information UN 3399 4.3/PG 2
WGK Germany 3
GHS Pictograms

View and Print SDS

SAFETY DATA SHEET

Date Accessed: 12/09/2024
Date Revised:01/15/2022

SECTION 1. IDENTIFICATION

Product Name: Tris(dimethylamino)silane

Product Number: All applicable American Elements product codes, e.g. SI-OMX-02 , SI-OMX-025 , SI-OMX-03 , SI-OMX-035 , SI-OMX-04 , SI-OMX-05

CAS #: 15112-89-7

Relevant identified uses of the substance: Scientific research and development

Supplier details:
American Elements
10884 Weyburn Ave.
Los Angeles, CA 90024
Tel: +1 310-208-0551
Fax: +1 310-208-0351

Emergency telephone number:
Domestic, North America: +1 800-424-9300
International: +1 703-527-3887


SECTION 2. HAZARDS IDENTIFICATION

Classification of the substance or mixture
~GHS02 Flame
Flam. Liq. 3 H226 Flammable liquid and vapor.
Water-react. 2 H261 In contact with water releases flammable gas.
~GHS06 Skull and crossbones
Acute Tox. 3 H301 Toxic if swallowed.
Acute Tox. 3 H311 Toxic in contact with skin.
~GHS05 Corrosion
Skin Corr. 1B H314 Causes severe skin burns and eye damage.
Eye Dam. 1 H318 Causes serious eye damage.
~GHS07
Acute Tox. 4 H332 Harmful if inhaled.
GHS label elements
The substance is classified and labeled according to the Globally Harmonized System (GHS).
Hazard Pictograms

Flame - GHS02 Skull and Crossbones - GHS06 Corrosion - GHS05 Exclamation Mark - GHS07

GHS02 GHS05 GHS06
Signal word Danger
Hazard-determining components of labeling:
Tris(dimethylamino)silane, 99+%
Hazard statements
H226 Flammable liquid and vapor.
H261 In contact with water releases flammable gas.
H301+H311 Toxic if swallowed or in contact with skin.
H332 Harmful if inhaled.
H314 Causes severe skin burns and eye damage.
Precautionary statements
P101 If medical advice is needed, have product container or label at hand.
P102 Keep out of reach of children.
P103 Read label before use.
P231+P232 Handle under inert gas. Protect from moisture.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin
with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if
present and easy to do. Continue rinsing.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P422 Store contents under inert gas.
P501 Dispose of contents/container in accordance with local/regional/national/international
regulations.
Classification system:
NFPA ratings (scale 0 - 4)
3

2
W—
Health = 3
Fire = 0
Reactivity = 2
The substance demonstrates unusual reactivity with water.
HMIS-ratings (scale 0 - 4)
HEALTH
FIRE
REACTIVITY
3

2
Health = 3
Fire = 0
Reactivity = 2
Other hazards
Results of PBT and vPvB assessment
PBT: N/A
vPvB: N/A


SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

Substances
CAS # / Substance Name
15112-89-7 Tris(dimethylamino)silane, 99+%
Identification number(s)
EC number: 239-165-0


SECTION 4. FIRST AID MEASURES

Description of first aid measures
General information:
Immediately remove any clothing soiled by the product.
Symptoms of poisoning may even occur after several hours; therefore medical observation for at least 48 hours
after the accident.
If inhaled:
Supply patient with fresh air. If not breathing, provide artificial respiration. Keep patient warm. Consult doctor if symptoms
persist.
In case of unconsciousness place patient stably in side position for transportation.
In case of skin contact: Immediately wash with soap and water; rinse thoroughly.
In case of eye contact: Rinse opened eye for several minutes under running water. Consult a physician.
If swallowed:
Immediately call a doctor.
Drink copious amounts of water and provide fresh air. Immediately call a doctor.
Most important symptoms and effects, both acute and delayed:
No data available
Indication of any immediate medical attention and special treatment needed
No data available


SECTION 5. FIREFIGHTING MEASURES

Extinguishing media
Suitable extinguishing agents: CO2, sand, extinguishing powder. Do not use water.
For safety reasons unsuitable extinguishing agents: Water with full jet
Special hazards arising from the substance or mixture No data available
Advice for firefighters
Protective equipment: Mouth respiratory protective device.


SECTION 6. ACCIDENTAL RELEASE MEASURES

Personal precautions, protective equipment and emergency procedures
Mount respiratory protective device.
Use personal protective equipment. Keep unprotected persons away.
Environmental precautions: Prevent seepage into sewage system, workpits and cellars.
Methods and materials for containment and cleanup:
Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).
Use neutralizing agent.
Dispose contaminated material as waste according to item 13.
Ensure adequate ventilation.
Do not flush with water or aqueous cleansing agents
Reference to other sections
See Section 7 for information on safe handling.
See Section 8 for information on personal protection equipment.
See Section 13 for disposal information.


SECTION 7. HANDLING AND STORAGE

Precautions for safe handling Ensure good ventilation/exhaustion at the workplace.
Handling: Handle under inert gas.
Information about protection against explosions and fires:
Keep ignition sources away - Do not smoke.
Protect against electrostatic charges.
Keep respiratory protective device available.
Conditions for safe storage, including any incompatibilities: Store contents under inert gas.
Requirements to be met by storerooms and receptacles: No special requirements.
Information about storage in one common storage facility: Not required.
Further information about storage conditions:
Keep receptacle tightly sealed.
Store in cool, dry conditions in well sealed receptacles.
Specific end use(s) No data available


SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

Additional information about design of technical systems: No further data; see item 7.
Control parameters
Components with limit values that require monitoring at the workplace: Not required.
Additional information: The lists that were valid during the creation were used as basis.
Exposure controls
Personal protective equipment:
General protective and hygienic measures:
Keep away from foodstuffs, beverages and feed.
Immediately remove all soiled and contaminated clothing.
Wash hands before breaks and at the end of work.
Avoid contact with the eyes and skin.
Breathing equipment:
In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use
respiratory protective device that is independent of circulating air.
Protection of hands:
`SProtective gloves
The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.
Due to missing tests no recommendation to the glove material can be given for the product/ the preparation/ the
chemical mixture.
Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation
Material of gloves
The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and
varies from manufacturer to manufacturer.
Penetration time of glove material
The exact break through time has to be found out by the manufacturer of the protective gloves and has to be
observed.
Eye protection:
Tightly sealed goggles


SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

Information on basic physical and chemical properties
Appearance:
Form: Liquid
Color: Colorless
Odor: undistinguishable
Odor threshold: No data available.
pH: No data available.
Melting point/Melting range: no data °C
Boiling point/Boiling range: Undetermined.
Flash point: N/A
Flammability (solid, gas): N/A
Ignition temperature:
Decomposition temperature: No data available.
Autoignition: No data available.
Danger of explosion: No data available.
Explosion limits:
Lower: No data available.
Upper: No data available.
Vapor pressure: 16mm (4 °C hPa (12mm (3 °C mm Hg)
Density at 20 °C (68 °F): 0.84 g/cm3 (7.01 lbs/gal)
Relative density No data available.
Vapor density No data available.
Evaporation rate No data available.
Solubility in / Miscibility with
Water: Not miscible or difficult to mix.
Partition coefficient (n-octanol/water): No data available.
Viscosity:
Dynamic: No data available.
Kinematic: No data available.
Organic solvents: 0.0 %
Other information No data available


SECTION 10. STABILITY AND REACTIVITY

Reactivity
Chemical stability
Thermal decomposition / conditions to be avoided: No decomposition if used according to specifications.
Possibility of hazardous reactions
Contact with water releases flammable gases.
Contact with water releases toxic gases.
Conditions to avoid No data available
Incompatible materials: No data available
Hazardous decomposition products: No dangerous decomposition products known.


SECTION 11. TOXICOLOGICAL INFORMATION

Information on toxicological effects
Acute toxicity:
Primary irritant effect:
on the skin: Caustic effect on skin and mucous membranes.
on the eye: Strong caustic effect.
Sensitization: No sensitizing effects known.
Additional toxicological information:
Swallowing will lead to a strong caustic effect on mouth and throat and to the danger of perforation of esophagus
and stomach.
Carcinogenic categories
IARC (International Agency for Research on Cancer)
Substance is not listed.
NTP (National Toxicology Program)
Substance is not listed.
OSHA-Ca (Occupational Safety & Health Administration)
Substance is not listed.


SECTION 12. ECOLOGICAL INFORMATION

Toxicity
Aquatic toxicity: No data available
Persistence and degradability No data available
Bioaccumulative potential No data available
Mobility in soil No data available
Additional ecological information: Must not reach bodies of water or drainage ditch undiluted or unneutralized.
Results of PBT and vPvB assessment
PBT: N/A
vPvB: N/A
Other adverse effects No data available


SECTION 13. DISPOSAL CONSIDERATIONS

Waste treatment methods
Recommendation:
Must not be disposed of together with household garbage. Do not allow product to enter drains, sewage systems, or other water courses system.
Uncleaned packagings:
Recommendation: Disposal must be made according to official regulations.


SECTION 14. TRANSPORT INFORMATION

UN-Number
DOT, IMDG, IATA UN3129
UN proper shipping name
DOT Water-reactive liquid, corrosive, n.o.s.
IMDG, IATA WATER-REACTIVE LIQUID, CORROSIVE, N.O.S.
Transport hazard class(es)
DOT
Class 4.3 Substances which, in contact with water, emit flammable gases
Label 4.3+8
IMDG, IATA
Class 4.3 Substances which, in contact with water, emit flammable gases
Label 4.3+8
Packing group
DOT, IMDG, IATA II
Environmental hazards:
Marine pollutant: No
Special precautions for user N/A
EMS Number: F-G,S-N
Transport in bulk according to Annex II of
MARPOL73/78 and the IBC Code N/A
Transport/Additional information:
DOT
Quantity limitations On passenger aircraft/rail: 1 L
On cargo aircraft only: 5 L
IMDG
Limited quantities (LQ) 0
Excepted quantities (EQ) Code: E2
Maximum net quantity per inner packaging: 30 ml
Maximum net quantity per outer packaging: 500 ml
UN "Model Regulation": UN3129, Water-reactive liquid, corrosive, n.o.s., 4.3 (8), II


SECTION 15. REGULATORY INFORMATION

Safety, health and environmental regulations/legislation specific for the substance or mixture
Sara
Section 355 (extremely hazardous substances):
Substance is not listed.
Section 313 (Specific toxic chemical listings):
Substance is not listed.
TSCA (Toxic Substances Control Act):
Substance is listed.
Proposition 65
Chemicals known to cause cancer:
Substance is not listed.
Chemicals known to cause reproductive toxicity for females:
Substance is not listed.
Chemicals known to cause reproductive toxicity for males:
Substance is not listed.
Chemicals known to cause developmental toxicity:
Substance is not listed.
Carcinogenic categories
EPA (Environmental Protection Agency)
Substance is not listed.
TLV (Threshold Limit Value established by ACGIH)
Substance is not listed.
NIOSH-Ca (National Institute for Occupational Safety and Health)
Substance is not listed.
GHS label elements
The substance is classified and labeled according to the Globally Harmonized System (GHS).
Hazard pictograms
GHS02 GHS05GHS06
Signal word Danger
Hazard-determining components of labeling:
Tris(dimethylamino)silane, 99+%
Hazard statements
H226 Flammable liquid and vapor.
H261 In contact with water releases flammable gas.
H301+H311 Toxic if swallowed or in contact with skin.
H332 Harmful if inhaled.
H314 Causes severe skin burns and eye damage.
Precautionary statements
P101 If medical advice is needed, have product container or label at hand.
P102 Keep out of reach of children.
P103 Read label before use.
P231+P232 Handle under inert gas. Protect from moisture.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin
with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if
present and easy to do. Continue rinsing.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P422 Store contents under inert gas.
P501 Dispose of contents/container in accordance with local/regional/national/international
regulations.
Chemical safety assessment: A Chemical Safety Assessment has not been carried out.


SECTION 16. OTHER INFORMATION

Safety Data Sheet according to Regulation (EC) No. 1907/2006 (REACH). The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. American Elements shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale. COPYRIGHT 1997-2022 AMERICAN ELEMENTS. LICENSED GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY.

About Tris(dimethylamino)silane

Tris(dimethylamino)silane is one of numerous organo-metallic compounds sold by American Elements under the trade name AE Organo-Metallics™ for uses requiring non-aqueous solubility such as recent solar energy and water treatment applications. Similar results can sometimes also be achieved with Nanoparticles and by thin film deposition. Note American Elements additionally supplies many materials as solutions. Tris(dimethylamino)silane is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. Additional technical, research and safety information is available.

Tris(dimethylamino)silane Synonyms

Tris(dimethylamido)silane, (Me2N)3SiH, N,N,N′,N′,N′′, N′′-Hexamethylsilanetriamine, N,N,N′,N′,N′′,N′′-Hexamethylsilanetriamine, TDMAS, 3DMAS

Chemical Identifiers

Linear Formula ((CH3)2N)3SiH
MDL Number MFCD00048006
EC No. 239-165-0
Beilstein/Reaxys No. N/A
Pubchem CID 6335325
IUPAC Name tris(dimethylamino)silicon
SMILES N(C)(C)[SiH](N(C)C)N(C)C
InchI Identifier InChI=1S/C6H19N3Si/c1-7(2)10(8(3)4)9(5)6/h10H,1-6H3
InchI Key TWVSWDVJBJKDAA-UHFFFAOYSA-N

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements

Silicon

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