Di-μ-chlorochlorotriethyldialuminum

247.51

245.98700

235-137-7

3052

Clear, yellow liquid

2903199000

0

4.99020

clear colorless solution

1.092 g/cm³ @ Temp: 25 °C

-21 °C

204 °C

−1 °F

water-free area

0.0199 mm Hg @ 25 deg C /Extrapolated/

Violently explosive when they come into contact with water. /Aluminum alkyls/

Freezing point: -50 °C. Pyrophoric; ignites on contact with air; reacts violently with water.|Specific heat 1.51 J/g at 57 °C|REACTS WITH SURFACE MOISTURE TO GENERATE HYDROGEN CHLORIDE ... .|Strongly associated forming dimers; held together by bridging halogen bonds; halogen aluminum bonds cleaved by water and alcohol /Aluminum alkyls/|Alkylaluminum chlorides, bromides, and iodides are usually dimeric, with bridging halides.

Spontaneously flammable in air (Douda 1966). Reacts violently with water forming hydrogen chloride and flammable ethane gas (Rose 1961).

Metal Hydrides, Metal Alkyls, Metal Aryls, and Silanes

Strong Reducing Agent

Organometallics, such as ETHYL ALUMINUM SESQUICHLORIDE, are reactive with many other groups. Incompatible with acids and bases. Organometallics are good reducing agents and therefore incompatible with oxidizing agents. Often reactive with water to generate toxic or flammable gases. Organometallics containing halogens (fluorine, chlorine, bromine, iodine) bonded to the metal typically with generate gaseous hydrohalic acids (HF, HCl, HBr, HI) with water. A mixture of this material with carbon tetrachloride exploded when warmed to room temperature [Bretherick, 5th Ed., 1995].

-8,600 BTU/LB= -4,800 CAL/G= -200X10+5 JOULES/KG (ESTIMATED)

155 J/g at normal boiling point

I

4.2

UN 3394 4.2/PG 1

15-17-23/24/25-34-14/15-14-67-65-48/20-11-63-62-51/53-35

16-26-36/37/39-45-27-62-43-57-43E-29-6A

BD1950000

F,C

Less sensitive than trialkylaminums to oxidation upon exposure to air. /Alkylaluminum halides/

P210, P222, P223, P231+P232, P233, P240, P241, P242, P243, P260, P264, P280, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P335+P334, P363, P370+P378, P402+P404, P403+P235, P405, P422, P501

H225

Aluminum compounds are treated under anhydrous conditions to prevent violent reactions, recover solvent, and form Al compounds suitable for landfill by reaction with anhydrous hydrolysis agent, eg calcium hydroxide. /Aluminum compounds/|SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

Reacts with surface moisture to generate hydrogen chloride, which is corrosive to common metals|Extremely reactive with air, moisture, and compounds containing active hydrogen... /Alkyl aluminum compounds/|Reacts violently with a broad range of materials including air & water. /Aluminum alkyls/

Special Hazards of Combustion Products: Intense smoke may cause metal-fume fever. Irritating hydrogen chloride also formed. Behavior in Fire: Contact with water from adjacent fires will cause formation of irritating smoke containing aluminum oxide and hydrogen chloride. (USCG, 1999)|Flammable - 3rd degree, Reactive - 3rd degree

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 3052 datasheet. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch or walk through spilled material. Stop leak if you can do it without risk. SMALL SPILL: EXCEPTION: For spills of Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite), UN1384, UN1923 and UN1929, dissolve in 5 parts water and collect for proper disposal. CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors. Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2016)

Full protective clothing, preferably of aluminized glass cloth; goggles, face shield, gloves; in case of fire, all-purpose canister or self-contained breathing apparatus. (USCG, 1999)|Full protective clothing, preferably of aluminized glass cloth; goggles, face shield, gloves.|/Wear/ all purpose canister or self-contained breathing apparatus.|Wear appropriate personal protective clothing to prevent skin contact. /Aluminum (soluble salts and alkyls, as Al/|Wear appropriate eye protection to prevent eye contact. /Aluminum (soluble salts and alkyls, as Al)/|Protective clothing and a high standard of training in the necessary precautionary measures are essential for the handling of the materials. /Aluminum alkyls/

Ignites spontaneously in air.|Reacts violently /with water/ to form... flammable ethane gas.|Certain polymerization catalysts, such as aluminum alkyls, react & burn violently on contact with water. /Aluminum alkyls/|Aluminum alkyls are organic aluminum compounds that are highly reactive and dangerous because of spontaneous burning in air. /Aluminum alkyls/|Prophoric material in flammable solvent. Vapors are heavier than air & may travel to a source of ignition & flash back. /Aluminum alkyls/

Mixture exploded when warmed to room temperature.|...Violently explosive when they come into contact with water. /Aluminum alkyls/

Do not use water, foam or halogenated extinguishing agents ...|/Use/ dry chemical, inert dry powders such as dry graphite, soda ash, sand or limestone|Stop flow of liquid before extinguishing fire. Use dry chemical or carbon dioxide. DO NOT use water as straight stream directly on spilled material. Water fog can be used to control fire. DO NOT use halogenated extinguishing agents on spilled material. Violent reaction may result. Use water spray to keep fire-exposed containers cool. Fight fire from protected location or maximum possible distance. /Aluminum Alkyls/

Contact with water from adjacent fires will cause formation of irritating smoke containing aluminum oxide and hydrogen chloride.

Remove contaminated clothing and shoes|SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.|Work clothing that becomes wet or significantly contaminated should be removed and replaced. /Aluminum (soluble salts and alkyls, as Al)/|Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises. /Aluminum (soluble salts and alkyls, as Al)/|For more Preventive Measures (Complete) data for ETHYLALUMINUM SESQUICHLORIDE (6 total), please visit the HSDB record page.

If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY. /Aluminum alkyl halides; Aluminum alkyl halides, liquid; Aluminum alkyl halides, solid/|Table of Water-Reactive Materials Which Produce Toxic Gases|/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Fire or Explosion: Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated. /Aluminum alkyl halides; Aluminum alkyl halides, liquid; Aluminum alkyl halides, solid/|/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Health: Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution. /Aluminum alkyl halides; Aluminum alkyl halides, liquid; Aluminum alkyl halides, solid/|For more DOT Emergency Guidelines (Complete) data for ETHYLALUMINUM SESQUICHLORIDE (10 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

High irritant via skin, eyes & mucous membranes.|Severe skin irritant. ...|Irritation of the eyes has been noted in patients who have been exposed /to aluminum alkyls/. /Aluminum alkyls/|May cause minor irritation to lungs or eyes. /Aluminum (dust or powder)/

Vacated 1989 OSHA PEL TWA 2 mg/cu m is still enforced in some states. /Aluminum soluble salts and alkyls, as Al/

Recommended Exposure Limit: 10-Hr Time-Weighted Avg: 10 mg/cu m (total). /Aluminum/|Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 mg/cu m (resp). /Aluminum/|Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 2 mg/cu m. /Aluminum (soluble salts and alkyls, as Al)/|Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 mg/cu m. /Aluminum (pyro powders and welding fumes, as Al)/

| 3 - Materials that, under emergency conditions, can cause serious or permanent injury.| 3 - Liquids and solids that can be ignited under almost all ambient temperature conditions. Materials produce hazardous atmospheres with air under almost all ambient temperatures or, though unaffected by ambient temperatures, are readily ignited under almost all conditions.| 3 - Materials that in themselves are capable of detonation or explosive decomposition or explosive reaction but that require a strong initiating source or must be heated under confinement before initiation.

D003; A waste containing ethylaluminum sesquichloride may (or may not) be characterized a hazardous waste following testing for the reactivity characteristics as prescribed by the Resource Conservation and Recovery Act (RCRA) regulations.

D003; A solid waste containing ethylaluminum sesquichloride may become characterized as a hazardous waste when subjected to testing for reactivity as stipulated in 40 CFR 261.23, and if so characterized, must be managed as a hazardous waste.

REACTS WITH SURFACE MOISTURE TO GENERATE HYDROGEN CHLORIDE ... .

Inhalation of smoke from fire causes metal-fume fever (flu-like symptoms); acid fumes irritate nose and throat. Contact with liquid, which is spontaneously flammable, causes severe burns of eyes and skin. (USCG, 1999)

INHALATION: only fumes from fire need be considered; metal-fume fever is not critical and lasts less than 36 hrs.; irritation of nose and throat by acid vapors may require treatment by a physician. EYES: flush gently with water for 15 min.; treat burns if fire occurred; get medical attention. SKIN: wash with water; treat burns caused by fire; get medical attention. (USCG, 1999)

/SIGNS AND SYMPTOMS/ Inhalation of smoke from fire causes metal-fume fever (flu-like symptoms); acid fumes irritate nose and throat. ... Severe skin irritant. Causes second- and third-degree burns on short contact and is very injurious to the eyes.|/SIGNS AND SYMPTOMS/ Corrosive. Causes severe eye and skin burns. Irritating to skin, eyes, and respiratory system. May be harmful if absorbed through skin or inhaled. "Metal fume fever" may result from inhalation of fumes /from organoaluminum compounds/. /SRP: While possible, metal fume fever is not highly probable./ /Organoaluminum compounds/|/OTHER TOXICITY INFORMATION/ Vapors of the pyrophoric alkyls (butyls and below) are nontoxic because they are completely consumed, but inhalation of the metallic oxide smoke (Al2O3) at 15 mg/cu m or greater can result in symptoms such as "metal fume fever." /Aluminum alkyls/

GRADE: Commercial|GRADES: PURE (NEAT); 25% OR LESS BY WT IN BENZENE, HEXANE, OR HEPTANE. SOLUTIONS ARE NOT PYROPHORIC.

Fire Hazards -> Flammable - 3rd degree, Reactive - 3rd degree