Dichloro(2-methylpropyl)alumane

C4H9AlCl2

dichloro(2-methylpropyl)alumane

CAS1888-87-5

Consulting for Dichloro(2-methylpropyl)alumane

Our experts support you with application, dosage, and compliance.

Request Consultation

Identification

CAS Number
1888-87-5
EC Number
217-563-5
UN Number
3394
PubChem CID
74679

Physical-chemical properties

Molecular Formula
C4H9AlCl2
Molar Mass
155.00 g/mol
IUPAC Name
dichloro(2-methylpropyl)alumane

Chemical Identifiers

InChI
InChI=1S/C4H9.Al.2ClH/c1-4(2)3;;;/h4H,1H2,2-3H3;;2*1H/q;+2;;/p-2
InChI Key
NMVXHZSPDTXJSJ-UHFFFAOYSA-L

Overview

Dichloro(2-methylpropyl)alumane (CAS 1888-87-5) is an organoaluminum compound with highly reactive alkyl-aluminum bonds and significant industrial catalytic properties. This specialized organoaluminum compound represents an important class of organometallic reagents widely utilized in modern chemical synthesis and industrial processes. With its molecular formula C4H9AlCl2 and molecular weight of 155 g/mol, dichloro(2-methylpropyl)alumane features a central aluminum atom bonded to two chlorine atoms and one isobutyl group (2-methylpropyl). The presence of both alkyl and halide substituents on the aluminum center provides unique reactivity characteristics that distinguish it from fully alkylated compounds like tris(2-methylpropyl)alumane. The compound exhibits typical organoaluminum reactivity patterns, including high sensitivity to moisture and oxygen, requiring careful handling under inert atmosphere conditions. Its pyrophoric nature is reflected in its ADR classification as Class 4.2, indicating substances liable to spontaneous combustion. These safety characteristics demand specialized storage and handling protocols, including the use of dry, inert gas environments and appropriate fire suppression systems. Primary industrial applications include its use as a cocatalyst in Ziegler-Natta polymerization systems for producing polyolefins, where it activates transition metal catalysts and acts as an alkylating agent. The compound also serves as a reducing agent in organic synthesis and as an intermediate in the preparation of other organoaluminum compounds. Additionally, it finds application in controlled alkylation reactions where selective introduction of isobutyl groups is required. OYSI maintains reliable supply chains for dichloro(2-methylpropyl)alumane, ensuring consistent availability for European industrial customers requiring this specialized organometallic reagent.

Safety & Classification

No Hazard Classification

This substance is not classified as hazardous according to CLP Regulation (EC) No 1272/2008.

Transport (ADR)

UN Number3394
ADR Class4.2
Packing GroupI
Tunnel CodeB/E
Proper Shipping NameIsobutylaluminiumdichlorid, flüssig, pyrophor
Marine PollutantNo

Frequently Asked Questions

What is dichloro(2-methylpropyl)alumane?

Dichloro(2-methylpropyl)alumane is an organoaluminum compound with the molecular formula C4H9AlCl2 and CAS number 1888-87-5. This chemical features an aluminum center bonded to two chlorine atoms and a 2-methylpropyl group (isobutyl group). With a molecular weight of 155 g/mol, it belongs to the family of alkylaluminum halides commonly used in organometallic chemistry and catalysis applications.

What are the physicochemical properties of dichloro(2-methylpropyl)alumane?

Dichloro(2-methylpropyl)alumane is typically a liquid or low-melting solid at room temperature, characteristic of organoaluminum compounds. As an alkylaluminum halide, it is highly reactive with moisture and oxygen, requiring anhydrous conditions for stability. The compound is generally colorless to pale yellow and has a pungent odor. It is soluble in dry organic solvents but reacts violently with water and alcohols.

What is dichloro(2-methylpropyl)alumane used for?

Dichloro(2-methylpropyl)alumane serves as a catalyst and reagent in organometallic synthesis and polymerization reactions. It is commonly used in Ziegler-Natta catalysis systems for olefin polymerization, alkylation reactions, and as a reducing agent in organic synthesis. The compound also finds applications in the production of specialized aluminum-containing materials and as an intermediate in the synthesis of other organoaluminum compounds.

How to handle dichloro(2-methylpropyl)alumane safely?

Dichloro(2-methylpropyl)alumane requires careful handling under inert atmosphere conditions due to its high reactivity with moisture and air. Essential safety equipment includes chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in a well-ventilated area or fume hood, away from water sources. Use dry, inert gas techniques and ensure all equipment is thoroughly dried before use to prevent violent reactions.

How to store dichloro(2-methylpropyl)alumane correctly?

Dichloro(2-methylpropyl)alumane must be stored under strict anhydrous conditions in tightly sealed containers under inert gas atmosphere (nitrogen or argon). Storage areas should be cool, dry, and well-ventilated, away from moisture, water, alcohols, and oxidizing agents. The compound is incompatible with protic solvents and should be kept in original containers with appropriate labeling and secondary containment systems.

What to do in case of contact with dichloro(2-methylpropyl)alumane?

Immediate action is required in case of contact with dichloro(2-methylpropyl)alumane due to its corrosive nature. For skin contact, brush off any solid material carefully and flush with plenty of water for at least 15 minutes. Remove contaminated clothing immediately. For eye contact, rinse thoroughly with water and seek immediate medical attention. In case of inhalation, move to fresh air immediately and consult a physician.

How to dispose of dichloro(2-methylpropyl)alumane appropriately?

Dichloro(2-methylpropyl)alumane disposal requires specialized hazardous waste procedures due to its reactive nature. The compound should never be poured down drains or mixed with water. Waste must be collected in appropriate containers under inert atmosphere and disposed of through licensed hazardous waste contractors. Contact local environmental authorities for specific disposal requirements and approved waste treatment facilities in your region.

How to transport dichloro(2-methylpropyl)alumane?

Dichloro(2-methylpropyl)alumane is classified as ADR Class 4.2 (substances liable to spontaneous combustion), Packing Group I, indicating high transport risk. Transportation requires specialized packaging that excludes moisture and air, typically under inert gas. Vehicles must carry appropriate safety equipment and documentation. Only trained personnel should handle transport operations, and specific ADR regulations for spontaneously combustible substances must be strictly followed.

Is dichloro(2-methylpropyl)alumane subject to specific regulations?

Dichloro(2-methylpropyl)alumane is subject to standard chemical regulations including REACH registration requirements in Europe and CLP classification rules. While not currently listed as a SVHC (Substance of Very High Concern), its reactive nature means it falls under general chemical safety regulations. Users must comply with workplace safety standards, proper labeling requirements, and maintain safety data sheets for regulatory compliance.

Where to buy dichloro(2-methylpropyl)alumane in Europe?

Dichloro(2-methylpropyl)alumane is available through OYSI, a specialized European distributor of technical chemicals with expertise in organometallic compounds. OYSI provides high-quality chemical products with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical supplier, OYSI ensures appropriate packaging and handling for safe delivery across European markets while maintaining product integrity and purity standards.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.