563-43-9 Usage
Description
Ethylaluminum dichloride, also known as dichlorodiethylaluminum, is an organoaluminum compound with the chemical formula (C2H5)2AlCl. It is a colorless to light-yellow heated liquid with a freezing point of 90°F. Ethylaluminum dichloride possesses flammable, reactive, and spontaneously combustible properties in air, making it a versatile and potent catalyst in various industrial applications.
Uses
Used in the Polyolefin Industry:
Ethylaluminum dichloride is used as a catalyst component in the production of polyolefins, which are a class of polymers known for their versatility and wide range of applications, including packaging materials, automotive parts, and construction materials. It plays a crucial role in the synthesis process, enhancing the efficiency and quality of the final product.
Used in the Synthesis of Synthetic Rubbers:
In the rubber industry, ethylaluminum dichloride serves as a catalyst for the synthesis of synthetic rubbers. These rubbers are essential in various applications, such as tires, hoses, belts, and seals, due to their superior properties like durability, flexibility, and resistance to extreme temperatures.
Used in the Dimerisation of Olefins:
Ethylaluminum dichloride is also employed in the dimerisation process of olefins, which involves the formation of larger molecules from two olefin molecules. This process is vital in the production of various chemicals and materials, such as lubricants, solvents, and plasticizers.
Used in Friedel-Crafts Acylations:
As a catalyst for Friedel-Crafts acylations, ethylaluminum dichloride facilitates the reaction between an acyl compound and an aromatic compound, leading to the formation of ketones. This reaction is widely used in the synthesis of various organic compounds, including pharmaceuticals, fragrances, and dyes.
Air & Water Reactions
Highly flammable. Ignites when exposed to air. Reacts violently with water or moisture in air forming hydrogen chloride fumes and flammable ethane gas (Rose 1961).
Reactivity Profile
Organometallics, such as ETHYLALUMINUM DICHLORIDE, 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.
Hazard
Ignites on contact with air, dangerous fire
risk, reacts violently with water. Skin irritant.
Health Hazard
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.
Potential Exposure
These materials are used as components of olefin polymerization catalysts. The reader is referred to the entry on “Aluminum alkyls” for additional information on this entry. The aluminum alkyl halides parallel very closely the aluminum alkyls
Shipping
UN3052 Spontaneously combustible. Water reactive releasing large quantities of toxic and deadly hydrogen gas. (Note: this number does not appear in the 49/CFR HazMat tables)
Incompatibilities
The aluminum alkyl halides are strong reducing agents; they react—possibly violently—with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. These chemicals react violently with nitromethaneEthylaluminum sesquichloride reacts explosively with carbon tetrachloride at room temperature. This chemical reacts violently with water, forming corrosive hydrogen chloride and flammable ethane gas. Diethylaluminum chloride may form an explosive product with chlorine azide.
Check Digit Verification of cas no
The CAS Registry Mumber 563-43-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,6 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 563-43:
(5*5)+(4*6)+(3*3)+(2*4)+(1*3)=69
69 % 10 = 9
So 563-43-9 is a valid CAS Registry Number.
InChI:InChI=1/C2H5.Al.2ClH/c1-2;;;/h1H2,2H3;;2*1H/q;+2;;/p-2/rC2H5AlCl2/c1-2-3(4)5/h2H2,1H3
563-43-9Relevant articles and documents
Jones
, p. 1117,1120,1121 (1971)
Intramolecularly nitrogen-stabilized organoaluminum compounds containing naphthyl, benzyl, and phenyl ligands
Schumann, Herbert,Dechert, Sebastian,Hummert, Markus,Lange, Katharina C. H.,Schutte, Stefan,Wassermann, Birgit C.,Koehler, Katrin,Eichhorn, Jens
, p. 1196 - 1204 (2008/10/09)
N,N-Dimethylnaphthylamin (1) reacts with Butyllithium to give Li(Et 2O)C10H6NMe2-8 (2). The reaction of 2 with Et2AlCl and EtAlCl2 yields Et2AlC 10H6NMesub
Titanium-catalyzed cyclotrimerization of butadiene. Part II. The (C6H6)TiII(AlCl4)2-EtxAlCl3-x (x=1-3) systems
Polacek, J.,Antropiusova, H.,Petrusova, L.,Mach, K.
, p. 53 - 74 (2008/10/08)
This paper describes the kinetics of butadiene cyclotrimerization catalyzed by the Ia-EtAlCl2, Et2AlCl or Et3Al systems and the results of investigations of these systems by electronic absorption spectroscopy. The study was carried out to improve understanding of the effects of organo-aluminum compounds on the catalytic properties of Ia and to find the optimum conditions for (Z,E,E)-CDT production. In view of our long-term efforts to identify the catalytic species in the butadiene cyclotrimerization in systems based on different titanium precursors, this is the initial step in a comparative study of the (arene)titanium (II) systems and the Ti(IV)-based systems.