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MSDS 
:
 Methylaluminum sesquichloride, 1M solution in toluene
CAS 
:
 108-88-3
SYNONYMS 
:
 Trichlorotrimethyldialuminum.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 108-88-3 |Toluene | 79.5 | 203-625-9 |
|----------------|--------------------------------------|----------|-----------|
| 12542-85-7 |Methyl aluminum sesquichloride | 20.5 | 235-698-8 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: XN F
Risk Phrases: 11 20

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

EMERGENCY OVERVIEW
Highly flammable. Harmful by inhalation.

Potential Health Effects
Eye:
Causes eye irritation. May result in corneal injury. May cause
chemical conjunctivitis and corneal damage.
Skin:
Prolonged and/or repeated contact may cause irritation and/or
dermatitis. May be absorbed through the skin. May cause irritation
and dermatitis. May cause cyanosis of the extremities.
Ingestion:
Aspiration hazard. May cause gastrointestinal irritation with
nausea, vomiting and diarrhea. May cause effects similar to those
for inhalation exposure. Aspiration of material into the lungs may
cause chemical pneumonitis, which may be fatal. Ingestion of large
amounts may cause CNS depression.
Inhalation:
Inhalation of high concentrations may cause central nervous system
effects characterized by nausea, headache, dizziness, unconsciousness
and coma. Inhalation of vapor may cause respiratory tract irritation.
May cause liver and kidney damage. Aspiration may lead to pulmonary
edema. Vapors may cause dizziness or suffocation. Overexposure may
cause dizziness, tremors, restlessness, rapid heart beat, increased
blood pressure, hallucinations, acidosis, kidney failure. May cause
burning sensation in the chest.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. May cause
cardiac sensitization and severe heart abnormalities. May cause liver
and kidney damage.

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

Eyes:
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. Flush skin with plenty of water for at least 15
minutes while removing contaminated clothing and shoes. Wash clothing
before reuse.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Possible aspiration hazard. 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:
Causes cardiac sensitization to endogenous catelcholamines which may
lead to cardiac arrhythmias. Do NOT use adrenergic agents such as
epinephrine or pseudoepinephrine.

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

General Information:
Containers can build up pressure if exposed to heat and/or fire. As
in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Water runoff can cause environmental damage. Dike
and collect water used to fight fire. Vapors may form an explosive
mixture with air. Vapors can travel to a source of ignition and flash
back. Water Reactive. Material will react with water and may release
a flammable and/or toxic gas. Flammable Liquid. Can release vapors
that form explosive mixtures at temperatures above the flashpoint.
Use water spray to keep fire-exposed containers cool. Water may be
ineffective. Material is lighter than water and a fire may be spread
by the use of water. Vapors may be heavier than air. They can
spread along the ground and collect in low or confined areas.
Extinguishing Media:
Do NOT use water directly on fire. Water may be ineffective. Do NOT
use straight streams of water. For small fires, use dry chemical,
carbon dioxide, water spray or regular foam. Cool containers with
flooding quantities of water until well after fire is out. For large
fires, use water spray, fog or regular foam.

**** 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. Avoid runoff into storm sewers and
ditches which lead to waterways. Clean up spills immediately,
observing precautions in the Protective Equipment section. Remove all
sources of ignition. Use a spark-proof tool. A vapor suppressing foam
may be used to reduce vapors. Water spray may reduce vapor but may
not prevent ignition in closed spaces.

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

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use with adequate ventilation. Ground and bond
containers when transferring material. Use spark-proof tools and
explosion proof equipment. Avoid contact with eyes, skin, and
clothing. Empty containers retain product residue, (liquid and/or
vapor), and can be dangerous. Keep container tightly closed. Keep
away from heat, sparks and flame. Avoid ingestion and inhalation. Do
not pressurize, cut, weld, braze, solder, drill, grind, or expose
empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of
ignition. Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances.
Flammables-area. Water free 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 adequate general or
local explosion-proof ventilation to keep airborne levels to
acceptable levels.
Exposure Limits
CAS# 108-88-3:
United Kingdom, WEL - TWA: 50 ppm TWA; 191 mg/m3 TWA
United Kingdom, WEL - STEL: 150 ppm STEL; 574 mg/m3 STEL
United States OSHA: 200 ppm TWA; 300 ppm Ceiling
Belgium - TWA: 50 ppm VLE; 191 mg/m3 VLE
France - VME: 100 ppm VME; 375 mg/m3 VME
France - VLE: 150 ppm VLE; 550 mg/m3 VLE
Germany: 50 ppm TWA; 190 mg/m3 TWA
Germany: Skin absorber
Japan: 50 ppm OEL; 188 mg/m3 OEL
Malaysia: 50 ppm TWA; 188 mg/m3 TWA
Netherlands: 40 ppm MAC; 150 mg/m3 MAC
Russia: 50 mg/m3 TWA
Spain: 50 ppm VLA-ED; 191 mg/m3 VLA-ED
CAS# 12542-85-7:


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: colorless
Odor: toluene-like odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 100-120C
Freezing/Melting Point: -20-0C
Autoignition Temperature: 480 deg C ( 896.00 deg F)
Flash Point: 4 deg C ( 39.20 deg F)
Explosion Limits, lower: 1.1
Explosion Limits, upper: 7.1
Decomposition Temperature:
Solubility in water: May decompose.
Specific Gravity/Density: 0.9000
Molecular Formula: C3H9Al2Cl3
Molecular Weight: 205.43

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

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat, strong
oxidants.
Incompatibilities with Other Materials:
Ntrogen tetroxide, nitric acid + sulfuric acid, silver perchlorate,
strong oxidizers, sodium dilfuoride, .
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide, aluminum oxide, chlorine, aluminum fumes, oxides of
chlorine.
Hazardous Polymerization: Has not been reported

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

RTECS#:
CAS# 108-88-3: XS5250000
CAS# 12542-85-7: BD1970000
LD50/LC50:
CAS# 108-88-3: Draize test, rabbit, eye: 870 ug Mild; Draize test,
rabbit, eye: 2 mg/24H Severe; Draize test, rabbit, skin: 435 mg Mild;
Draize test, rabbit, skin: 500 mg Moderate; Draize test, rabbit,
skin: 20 mg/24H Moderate; Inhalation, mouse: LC50 = 400 ppm/24H;
Inhalation, mouse: LC50 = 30000 mg/m3/2H; Inhalation, mouse: LC50 =
19900 mg/m3/7H; Inhalation, mouse: LC50 = 10000 mg/m3; Inhalation,
rat: LC50 = 49 gm/m3/4H; Oral, rat: LD50 = 636 mg/kg; Skin, rabbit:
LD50 = 14100 uL/kg.
CAS# 12542-85-7.
Carcinogenicity:
Toluene -
Not listed by ACGIH, IARC, or NTP.
Methyl aluminum sesquichloride -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

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

Ecotoxicity:
Bluegill LC50=17 mg/L/24H
Shrimp LC50=4.3 ppm/96H
Fathead minnow
LC50=36.2 mg/L/96H
Sunfish (fresh water) TLm=1180 mg/L/96H

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

Dispose of in a manner consistent with federal, state, and local regulations.

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

IATA
Shipping Name: PYROPHORIC LIQUID, ORGANIC, N.O.S.*
Hazard Class: 4.2
UN Number: 2845
Packing Group:
IMO
Shipping Name: PYROPHORIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 4.2
UN Number: 2845
Packing Group: I
RID/ADR
Shipping Name: PYROPHORIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 4.2
UN Number: 2845
Packing group: I
USA RQ: CAS# 108-88-3: 1000 lb final RQ; 454 kg final RQ

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

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN F
Risk Phrases:
R 11 Highly flammable.
R 20 Harmful by inhalation.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 25 Avoid contact with eyes.
S 29 Do not empty into drains.
S 33 Take precautionary measures against static
discharges.
WGK (Water Danger/Protection)
CAS# 108-88-3: 2
CAS# 12542-85-7: No information available.
Canada
CAS# 108-88-3 is listed on Canada's DSL List.
CAS# 12542-85-7 is listed on Canada's DSL List.
CAS# 108-88-3 is listed on Canada's Ingredient Disclosure List.
CAS# 12542-85-7 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 108-88-3 is listed on the TSCA inventory.
CAS# 12542-85-7 is listed on the TSCA inventory.

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

Text for R-phrases from Section 2
R 11 Highly flammable.
R 20 Harmful by inhalation.
MSDS Creation Date: 7/16/1999 Revision #4 Date: 9/08/2003

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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