DIBAC: Diisobutylaluminum chloride (1779-25-5) — Co-catalyst for Polymer Production

August 12, 2026 3 min read

DIBAC is an aluminum alkyl used as a co-catalyst in the Ziegler-Natta polymerization of olefins. It offers enhanced stability and selectivity in polyolefin catalyst systems.

Quick Facts

Trade Name DIBAC
Chemical Name Diisobutylaluminum chloride
CAS Number 1779-25-5
Chemical Family Aluminum Alkyl
Brand Dosender
Function Category Co-catalyst
Product Line Metal Alkyls – Aluminum Alkyls
Applications Ziegler-Natta Catalysis, Polymerization
Market Segment Polymer Production
Physical Form Liquid
Decomposition Temperature
Active Oxygen Content
Molecular Weight 176.73

What Is Diisobutylaluminum chloride?

Diisobutylaluminum chloride is a aluminum alkyl supplied under the Dosender brand as part of the
Metal Alkyls – Aluminum Alkyls portfolio. DIBAC is an aluminum alkyl used as a co-catalyst in the Ziegler-Natta polymerization of olefins. It offers enhanced stability and selectivity in polyolefin catalyst systems. As a co-catalyst,
it is engineered for demanding Polymer Production applications where consistency and purity are critical.

Key Properties & Specifications

  • Chemical family: Aluminum Alkyl
  • CAS number: 1779-25-5
  • Physical form: Liquid
  • Decomposition temperature:
  • Active oxygen content:
  • Molecular weight: 176.73

How It Works

Diisobutylaluminum chloride is an organometallic compound that functions as an alkylating / co-catalyst component in coordination polymerization systems (for example Ziegler-Natta and metallocene processes) and as a reducing or initiating reagent in fine-chemical synthesis. Many metal alkyls are pyrophoric and react violently with water, so they are supplied and handled under inert atmosphere.

Primary Applications

DIBAC is applied across Ziegler-Natta Catalysis, Polymerization. Typical market segments include Polymer Production.
Its performance profile makes it a trusted choice for formulators who need reproducible,
high-purity raw materials.

Safety, Handling & Storage

Handle DIBAC in accordance with its Safety Data Sheet (SDS). Store in original,
sealed packaging away from heat, ignition sources and incompatible materials, within the
recommended temperature range. Personal protective equipment and adequate ventilation are
required. Always consult the current SDS and applicable local regulations before use.

Regulatory & Compliance

Do Sender Chem supplies Diisobutylaluminum chloride with full documentation and supports compliance with
international chemical regulations (including REACH where applicable). For controlled
precursor grades, supply is managed under know-your-customer and licensing procedures.

Why Source DIBAC from Do Sender Chem?

Do Sender Chem is a global specialty chemical manufacturer offering a broad, multi-language
catalog, consistent quality and responsive technical support. With localized content in 20
languages and worldwide delivery, we help polymer, rubber and specialty producers secure
reliable co-catalyst supply.

Frequently Asked Questions

What is Diisobutylaluminum chloride used for?

Diisobutylaluminum chloride (trade name DIBAC) is used as a Co-catalyst in Ziegler-Natta Catalysis, Polymerization. It serves manufacturers in the Polymer Production segments.

What is the CAS number of Diisobutylaluminum chloride?

The CAS Registry Number of Diisobutylaluminum chloride is 1779-25-5. The CAS number uniquely identifies the substance and is the standard reference used in safety data sheets, regulatory filings and procurement specifications.

Is Diisobutylaluminum chloride classified as Aluminum Alkyl?

Yes. Diisobutylaluminum chloride belongs to the Aluminum Alkyl chemical family and is marketed under the Dosender brand as part of the Metal Alkyls – Aluminum Alkyls product line.

How should DIBAC be stored and handled?

DIBAC should be stored according to its safety data sheet, away from heat, ignition sources and incompatible materials, in original sealed packaging under the recommended temperature range. Always consult the current SDS and local regulations before handling.

Which industries buy DIBAC?

DIBAC is supplied to producers in the Polymer Production industries that require reliable, high-purity Co-catalyst raw materials.

Related Products

Explore other aluminum alkyl and co-catalyst products in our catalog, or contact
our team for formulation guidance.

References

  • CAS Registry Number: 1779-25-5 — Diisobutylaluminum chloride
  • Do Sender Chem product data sheet: DIBAC

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