Trimethylaluminium
CAS No.: 75-24-1
Synonyms:
Formula: C3H9Al
Exact Mass: 72.05200
Molecular Weight: 72.08510
PSA: 0.00000
LogP: 1.75140
Trimethylaluminium 75-24-1 MSDS
Name: Trimethylaluminum 1 0M solution in heptane Material Safety Data Sheet
Synonym: None Known
CAS: 75-24-1
Section 1 - Chemical Product   MSDS Name:Trimethylaluminum 1 0M solution in heptane Material Safety Data Sheet
Synonym:None Known

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
75-24-1 Trimethylaluminium 10% 200-853-0
Hazard Symbols: F C N
Risk Phrases: 11 14/15 34 50/53 65 67

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Highly flammable. Reacts violently with water liberating extremely flammable gases. Causes burns. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. Harmful: may cause lung damage if swallowed. Vapours may cause drowsiness and dizziness.Dangerous for the environment.Water-reactive.Highly flammable.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns. Prolonged and/or repeated contact may cause defatting of the skin and dermatitis.
Ingestion:
Causes gastrointestinal tract burns. Aspiration of material into the lungs may cause chemical pneumonitis, which may be fatal.
Inhalation:
Inhalation of high concentrations may cause central nervous system effects characterized by nausea, headache, dizziness, unconsciousness and coma. Causes chemical burns to the respiratory tract.
Chronic:
Prolonged or repeated skin contact may cause dermatitis.

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. Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. If water-reactive products are embedded in the skin, no water should be applied. The embedded products should be covered with a light oil.
Ingestion:
Do not induce vomiting. Get medical aid immediately. Potential for aspiration if swallowed. Get medical aid immediately. Do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person.
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. Do NOT use mouth-to-mouth resuscitation.
Notes to Physician:
Treat symptomatically and supportively.

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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Use water spray to keep fire-exposed containers cool. Flammable liquid and vapor. May re-ignite after fire is extinguished. Vapors are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas. This liquid floats on water and may travel to a source of ignition and spread fire.
Extinguishing Media:
Use approved class D extinguishing agents or smother with dry sand, clay, or sodium bicarbonate. Contact professional fire-fighters immediately. DO NOT USE WATER, CO2, OR FOAM DIRECTLY ON FIRE ITSELF.

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. Provide ventilation. Do not expose spill to water. A vapor suppressing foam may be used to reduce vapors.

Section 7 - HANDLING and STORAGE
  Handling:
Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing.
Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Do not allow contact with water. Use only in a chemical fume hood. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Keep away from heat, sparks and flame.
Storage:
Keep away from sources of ignition. Store in a cool, dry place.
Store in a tightly closed container. Flammables-area. Corrosives area. Water free area. Store under nitrogen.

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 ventilation to keep airborne concentrations low. Use adequate general or local explosion-proof ventilation to keep airborne levels to acceptable levels.
Exposure Limits CAS# 75-24-1: United Kingdom, WEL - TWA: (listed as aluminum, soluble salts): 2 mg/m3 TWA United Kingdom, WEL - STEL: (listed as aluminum, soluble salts): mg/m3 STEL Belgium - TWA: (listed as aluminum, soluble salts): 2 mg/m3 VLE ( Al) France - VME: (listed as aluminum, soluble salts): 2 mg/m3 VME Germany: (listed as aluminum, soluble salts): 2 mg/m3 VME Malaysia: (listed as aluminum, soluble salts): 2 mg/m3 TWA (as Al Spain: (listed as aluminum, soluble salts): 2 mg/m3 VLA-ED (as Al CAS# 142-82-5: United Kingdom, WEL - TWA: 500 ppm TWA United Kingdom, WEL - STEL: 1500 ppm STEL United States OSHA: 500 ppm TWA; 2000 mg/m3 TWA Belgium - TWA: 400 ppm VLE; 1664 mg/m3 VLE Belgium - STEL: 500 ppm VLE; 2085 mg/m3 VLE France - VME: 400 ppm VME; 1600 mg/m3 VME Germany: 500 ppm TWA; 2100 mg/m3 TWA Japan: 200 ppm OEL; 820 mg/m3 OEL Malaysia: 400 ppm TWA; 1640 mg/m3 TWA Netherlands: 400 ppm STEL; 1600 mg/m3 STEL Netherlands: 300 ppm MAC; 1200 mg/m3 MAC Spain: 500 ppm VLA-ED; 2085 mg/m3 VLA-ED Personal Protective Equipment Eyes: Wear chemical splash goggles.
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: clear, colorless
Odor: Not available.
pH: Not available.
Vapor Pressure: 20kPa @80 deg C
Viscosity: 0.90 mPa s @30 deg C
Boiling Point: 126 deg C
Freezing/Melting Point: 15 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: >180 deg C
Solubility in water: reacts
Specific Gravity/Density: 0.688
Molecular Formula: C3H9Al
Molecular Weight: 72.09

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Combines vigorously or explosively with water. Air sensitive. May violently decompose at temperatures above 190C.
Conditions to Avoid:
Ignition sources, exposure to air, excess heat, exposure to moist air or water, confined spaces.
Incompatibilities with Other Materials:
Strong oxidizing agents, water, acids, alcohols, oxygen, organic halides.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, aluminum fumes.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 75-24-1: BD2204000 CAS# 142-82-5: MI7700000 LD50/LC50:
Not available.
CAS# 142-82-5: Inhalation, rat: LC50 = 103 gm/m3/4H.
Carcinogenicity:
Trimethylaluminium - Not listed by ACGIH, IARC, or NTP.
Heptane (n-) - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
Fish: Goldfish: LC50 = 4.0 mg/L; 24 Hr.; UnspecifiedFish: Mosquito Fish: LC50 = 4900 mg/L; 24 Hr.; UnspecifiedFish: LC50 = 4900 mg/L; 24 Hr.; Unspecified

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: ORGANOMETALLIC COMPOUND DISPERSION, WATER-REACTIVE
, FLAMMABLE, N.O.S.*
Hazard Class: 4.3 (3)
UN Number: 3207
Packing Group: I
IMO
Shipping Name: ORGANOMETALLIC COMPOUND DISPERSION, WATER-REACTIVE
, FLAMMABLE, N.O.S.
Hazard Class: 4.3 (3)
UN Number: 3207
Packing Group: I
RID/ADR
Shipping Name: ORGANOMETALLIC COMPOUND DISPERSION, WATER-REACTIVE
, FLAMMABLE, N.O.S.
Hazard Class: 4.3 (3)
UN Number: 3207
Packing group: I

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: F C N
Risk Phrases:
R 11 Highly flammable.
R 14/15 Reacts violently with water liberating
extremely flammable gases.
R 34 Causes burns.
R 50/53 Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
R 65 Harmful: may cause lung damage if swallowed.
R 67 Vapours may cause drowsiness and dizziness.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 29 Do not empty into drains.
S 33 Take precautionary measures against static
discharges.
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
S 62 If swallowed, do not induce vomiting: seek
medical advice immediately and show this container or
label.
WGK (Water Danger/Protection)
CAS# 75-24-1: No information available.
CAS# 142-82-5: 1
Canada
CAS# 75-24-1 is listed on Canada's DSL List.
CAS# 142-82-5 is listed on Canada's DSL List.
CAS# 75-24-1 is not listed on Canada's Ingredient Disclosure List.
CAS# 142-82-5 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 75-24-1 is listed on the TSCA inventory.
CAS# 142-82-5 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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