Material Safety Data Sheet
Product No. 18605 Hexamethyldisilazane
Issue Date (09-13-06)
Review Date (03-02-07)
Section 1: Product and Company Identification
Product Name: Hexamethyldisilazane
Synonym: Bis(trimethlysilyl)amine, HMDS, Hexamethyldisilazane
Company Name
Ted Pella, Inc. and PELCO International, P.O. Box 492477, Redding, CA
96049-2477
Domestic Phone (800) 237-3526 (Mon-Thu. 6:00AM
to 4:30PM PST; Fri 6:00AM to 4:00PM PST)
International Phone (01) (530) 243-2200 (Mon-Thu. 6:00AM to 4:30PM PST; Fri 6:00AM to 4:00PM PST)
Chemtrec Emergency Number 1-800-424-9300 24 hrs a day.
Section 2: Composition / Information on Ingredients
|
Principle Hazardous Component(s)
|
% |
OSHA mg/m3 |
ACGIH |
NTP |
IARC |
OSHA |
|
1,1,1,3,3,3-Hexamethyldisilazane (999-97-3) |
100 |
ND |
ND |
ND |
ND |
ND |
Section 3: Hazard Identification
Emergency overview
Appearance: Colorless liquid.
Immediate effects: Corrosive effect on skin, mucous membranes and eyes. Highly flammable
Potential health effects
Primary Routes of entry: Skin, Eyes, Inhalation and Ingestion
Signs and Symptoms of Overexposure: ND
Eyes: Strong corrosive effect.
Skin: Corrosive effect on skin.
Ingestion: Harmful if swallowed.
Inhalation: Slightly hazardous in case of inhalation.
Chronic Exposure: ND
Chemical Listed As Carcinogen Or Potential Carcinogen: No
See Toxicological Information (Section11)
Potential environmental effects
See Ecological Information (Section 12)
Section 4: First Aid Measures
If accidental overexposure is suspected
Eye(s) Contact: Rinse opened eye for several minutes under running water. Then consult a doctor.
Skin Contact: Immediately wash with water and soap and rinse thoroughly.
Seek immediate medical advice.
Inhalation: Supply fresh air. If required, provide artificial respiration. Keep
patient warm. Seek immediate medical advice.
Ingestion: Seek immediate medical advice.
Note to physician
Treatment: ND
Medical Conditions generally Aggravated by Exposure: ND
Section 5: Fire Fighting Measures
Flash Point: 8º C (46º C)
Flammable Limits: Lower: 0.8 %. Upper: 16.3 %
Auto-ignition point: 380º C (716º C)
Fire Extinguishing Media: Carbon dioxide, sand, extinguishing. Do not use
water.
Special Fire Fighting Procedures: ND
Unusual Fire and Explosion Hazards: ND
Hazardous combustion products: Carbon monoxide, Nitrogen oxides, ammonia
DOT Class: Flammable and corrosive.
Section 6: Accidental Release Measures
Steps to be Taken in Case Material is Released or Spilled:
Waste Disposal Methods: Dispose of waste according to Federal, State and Local
Regulations.
Section 7: Handling and Storage
Precautions to be Taken in Handling and Storage: Keep container tightly sealed.
Store under dry protective gas. Ensure good
ventilation in workplace. Keep away from ignition sources. Do not store
together with acids. Store away from oxidizing agents.
Storage temperature: Cool temperatures and dry conditions.
Storage Pressure: ND
Section 8: Exposure Controls / Personal Protection
Engineering Controls
Ventilation required: Properly operating chemical fume hood designed for hazardous chemicals and having an average face velocity of at least 100 feet per minute.
Personal Protection Equipment
Respiratory protection: Use suitable respirator when high concentrations are present.
Protective gloves: Impervious gloves.
Skin protection: Gloves and protective clothing.
Eye protection: Full face shield, tightly sealed goggles, safety glasses.
Additional clothing and/or equipment: Eye washes and shower stations.
Exposure Guidelines
See Composition/Information on Ingredients (Section2)
Section 9 Physical and Chemical Properties
Appearance and Physical State: Colorless liquid.
Odor (threshold): Pungent
Specific Gravity (H2O=1): 0.774 at 20º C
Vapor Pressure (mm Hg): 103 hPa (77 mm Hg) at 50º C (122º F)
Vapor Density (air=1): > 1
Percent Volatile by volume: ND
Evaporation Rate (butyl acetate=1): ~ 1
Boiling Point: 126-127º C (259-261º F)
Freezing point / melting point: ND
pH: ND
Solubility in Water: Insoluble and reacts.
Molecular Weight: 161.3
Section 10: Stability and Reactivity
Stability: Stable in sealed containers in cool area.
Conditions to Avoid: Incompatible materials
Materials to Avoid (Incompatibility): Water/moisture, alcohols, oxidizing
agents. Reacts with water/moisture releasing flammable gases.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen
oxides, ammonia
Hazardous Polymerization: Will not occur
Section 11: Toxicological Information
Results of component toxicity test performed: Oral (mus, rat), LD50: 850 mg/Kg. Oral (rbt), LD50: 1100 mg/Kg. Dermal (gpg), LD50: 1000 µg/Kg. Dermal (rbt), LD50: 710 µg/Kg. Inhalation (mus), LC50: 12000 mg/M3/2 Hr. Inhalation (rat), LC50: 8700 mg/M3/4 Hr
Human experience: ND
This product does not contain any compounds listed by NTP or IARC or regulated by OSHA as a carcinogen.
Section 12: Ecological Information
Ecological Information: Ecotoxicity: LC50 (fish, Brachydanio rerio): 88 mg/l/96 Hr. EC50 Daphnia, Daphnia magna): 80 mg/l/48 Hr. EC50 (Algae, Scenedesmus subspicatus): 19 mg/l/72 Hr.
Chemical Fate Information: ND
Section 13 Disposal Considerations
RCRA 40 CFR 261 Classification: ND
Federal, State and local laws governing disposal of materials can differ. Ensure proper disposal compliance with proper authorities before disposal.
Section 14: Transportation Information
US DOT Information: Proper shipping name: Flammable liquid, corrosive, n.o.s. (1,1,1,3,3,3-Hexamethyldisilazane)
Hazard Class: 3, (8)
Packaging group: II
UN Number: UN2924
IATA: Proper shipping name: Flammable liquid, corrosive, n.o.s. (1,1,1,3,3,3-Hexamethyldisilazane)
Hazard Class: 3, (8)
Packing group: II
UN Number: UN2924
IMO: Proper shipping name: Flammable liquid, corrosive, n.o.s. (1,1,1,3,3,3-Hexamethyldisilazane)
Class: 3, (8)
UN Number: UN2924
Packing group: II
Marine Pollutant: No
Canadian TDG:
IMDG Page:
Limitations:
Section 15: Regulatory Information
United States Federal Regulations
MSDS complies with OSHA’s Hazard Communication Rule 29, CFR 1910.1200.
SARA: CAS # 999-97-3: Immediate, fire, reactive.
SARA Title III: Section 302 (TPQ): None
RCRA: ND
TSCA: CAS# 999-97-3 is listed on the TSCA Inventory List
CERCLA: No RQ
State Regulations
California Proposition 65: None
International Regulations
All components of this product are listed on the Canadian Domestic Substances List (DSL)
Canada WHMIS: This product has been classified in accordance with the hazard criteria of the CPR and contains all the information required by the CPR.
Europe EINECS Numbers: 21-346-0
Section 16: Other Information
Label Information: Corrosive, Highly flammable
European Risk and Safety Phrases: Risk: 11 Highly flammable, 22 Harmful if swallowed. 34 Causes burns. Safety: 26 In case of contact with eyes rinse immediately with plenty of water and seek medical advice. 36/37/39 Wear suitable protective clothing, gloves and eye/face protection. 45 In case of accident or if you feel unwell, seek medical advice immediately.
European symbols needed: Corrosive, Highly flammable
Canadian WHMIS Symbols: Corrosive, Highly flammable
HMIS® Hazard Rating: Health: 3; Fire: 3; Reactivity: 2
(0=least, 1=Slight, 2=Moderate, 3=High, 4=Extreme)
Abbreviations used in this document
NE= Not established
NA= Not applicable
NIF= No Information Found
ND= No Data
Disclaimer
Ted Pella, Inc. makes no warranty of any kind regarding the information
furnished herein. Users should independently determine the suitability and
completeness of information from all sources. While this data is presented in
good faith and believed to be accurate, it should be considered only as a
supplement to other information gathered by the user. It is the User's
responsibility to assure the proper use and disposal of these materials as well
as the safety and health of all personnel who may work with or otherwise come
in contact with these materials.
MSDS Form 0013F1 V2