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MSDS 
:
 N-Methyl-N-trimethylsilyltrifluoroacetamide
CAS 
:
 24589-78-4
SYNONYMS 
:
 MSTFA
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 24589-78-4 |N-Methyl-N-trimethylsilyltrifluoroacet| 97% | 246-331-6 |
| |amide | | |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XI F
Risk Phrases: 10 36/37/38

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Flammable. Irritating to eyes, respiratory system and skin.Moisture
sensitive.

Potential Health Effects
Eye:
Vapors cause eye irritation.
Skin:
Causes skin irritation. May be absorbed through the skin in harmful
amounts.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and
diarrhea.
Inhalation:
May cause irritation of the respiratory tract with burning pain in
the nose and throat, coughing, wheezing, shortness of breath and
pulmonary edema.
Chronic:
No information found.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen.
Notes to Physician:

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Vapors can travel to a source of ignition and flash
back. During a fire, irritating and highly toxic gases may be
generated by thermal decomposition or combustion. Containers may
explode in the heat of a fire. Flammable liquid and vapor.
Extinguishing Media:
Use foam, dry chemical, or carbon dioxide.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Wash area with soap and water.
Clean up spills immediately, observing precautions in the Protective
Equipment section. Remove all sources of ignition. Use a spark-proof
tool. Isolate area and deny entry. Provide ventilation.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Avoid contact with eyes, skin, and
clothing. Keep away from heat, sparks and flame. Avoid ingestion and
inhalation. Use only in a chemical fume hood.
Storage:
Keep away from heat, sparks, and flame. Store in a cool, dry place.
Store in a tightly closed container. Flammables-area.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use only under a
chemical fume hood.
Exposure Limits
CAS# 24589-78-4:
United Kingdom, WEL - TWA: (listed as silica, amorphous): 6 mg/m3
(inhalable dust); 2.4 mg/m3 TWA (respirable dust)
United Kingdom, WEL - STEL: (listed as silica, amorphous): 18 mg/
STEL (inhalable dust); 7.2 mg/m3 STEL (respirable dust)

Russia: (listed as silica, amorphous): 1 mg/m3 TWA

Personal Protective Equipment

Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
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 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Liquid
Color: yellow
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 130C-132C
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: 25 deg C ( 77.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Not available.
Specific Gravity/Density: 1.075
Molecular Formula: C6H12F3NOSi
Molecular Weight: 199.1708

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, moisture, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents; strong acids. May decompose on exposure to
moist air or water.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide, hydrogen fluoride
gas, silicon dioxide.
Hazardous Polymerization: Has not been reported.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 24589-78-4: AC9800000
LD50/LC50:
Not available.
Carcinogenicity:
N-Methyl-N-trimethylsilyltrifluoroacetamide -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****



**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Products which are considered hazardous for supply are classified as Special
Waste and the disposal of such chemicals is covered by regulations which may
vary according to location. Contact a specialist disposal company or the local
waste regulator for advice. Empty containers must be decontaminated before
returning for recycling.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
No information available.
IMO
No information available.
RID/ADR
No information available.

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI F
Risk Phrases:
R 10 Flammable.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
WGK (Water Danger/Protection)
CAS# 24589-78-4: No information available.
Canada
CAS# 24589-78-4 is listed on Canada's NDSL List.
CAS# 24589-78-4 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 24589-78-4 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 12/12/1997 Revision #2 Date: 3/18/2003

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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