Methylaluminoxane solution
Methylaluminoxane solution (CAS: 120144-90-3; Formula: [-Al(CH3)O-]n; MW: 58.02) is a key organoaluminum reagent supplied by Tech Serve Solutions. This compound is primarily utilized as a co-catalyst or activator in olefin polymerization processes. It plays a crucial role in the Ziegler-Natta catalysis system, enhancing catalyst activity and influencing polymer properties. It is also employed in chemical synthesis and materials science applications.
- IUPAC
- MAO
![Methylaluminoxane solution ([-Al(CH3)O-]n) — chemical structure, CAS 120144-90-3; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F120144-90-3.png&w=3840&q=75)
Olefin Polymerization
Methylaluminoxane solution serves as an essential co-catalyst for various olefin polymerization reactions. It activates metallocene catalysts, leading to the production of polyolefins with controlled microstructures and properties.
Catalyst Activation
This solution is widely used to activate metallocene and other transition metal catalysts in polymerization processes. It facilitates the formation of active catalytic species, crucial for efficient polymer synthesis.
Chemical Synthesis
Methylaluminoxane is a valuable reagent in general chemical synthesis, particularly in reactions involving organometallic chemistry. Its reactivity allows for various transformations and the preparation of specialized compounds.
Materials Science
In materials science, Methylaluminoxane solution contributes to the development of advanced polymers and composite materials. Its ability to modify polymer chain growth influences the final material characteristics.
| Molecular weight | 58.02 |
|---|---|
| Linear formula | [-Al(CH3)O-]n |
| Boiling point | 111 °C |
| Density | 0.875 g/mL at 25 °C |
| Concentration | 10 wt. % in toluene |
| Vapour pressure | 0.76 mmHg (60 °C) |
| Storage temperature | 2-8°C |
| Application | Dialkylmetallocenes can undergo exchange reactions with methylaluminoxane.1 |



Hazard statements
- H250Catches fire spontaneously if exposed to air
- H260In contact with water releases flammable gases
- H304May be fatal if swallowed and enters airways
- H315Causes skin irritation
- H336May cause drowsiness or dizziness
- H361D
- H373May cause damage to organs through prolonged exposure
Precautionary statements
- P222Do not allow contact with air
- P223Do not allow contact with water
- P231Handle under inert gas
- P261Avoid breathing dust, fume, gas or vapours
- P370In case of fire
- P422
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 3394 4.3(4.2) / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 63-38-48/20-65-67 |
| Safety statements (S) | 36/37-62 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Methylaluminoxane solution used for?
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Methylaluminoxane solution is primarily used as a co-catalyst or activator in olefin polymerization reactions, particularly with metallocene catalysts. It also finds applications in chemical synthesis and materials science.
What are the CAS number and chemical formula for Methylaluminoxane solution?
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The CAS number for Methylaluminoxane solution is 120144-90-3, and its chemical formula is [-Al(CH3)O-]n.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methylaluminoxane solution as a 10 wt. % concentration in toluene. The specific assay and purity are detailed in the product specifications; TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should Methylaluminoxane solution be handled safely?
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Methylaluminoxane solution is highly pyrophoric and reacts violently with water. Handle under an inert atmosphere (e.g., nitrogen or argon) and avoid contact with air, moisture, and incompatible materials. Appropriate personal protective equipment, including flame-retardant clothing, chemical-resistant gloves, and eye protection, is essential due to its severe hazards (Danger: H250-H260-H304-H315-H336-H361d-H373).
How is Methylaluminoxane solution packed, shipped, and exported?
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Methylaluminoxane solution is typically supplied in Sure/Seal™ bottles for safe handling under inert conditions. It is classified as a hazardous material (UN 3394) and requires specialised packaging and shipping procedures in compliance with international regulations for export.
How can I request a quote or sample of Methylaluminoxane solution?
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To request a quote or a sample of Methylaluminoxane solution, please contact our sales team through the TSS website or by calling our customer service line. Please provide the product name and CAS number for faster service.
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