MMAO-3A 7 wt% AL in Heptane (Modified Methylaluminoxane, type 3A)

About this product

MMAO-3A 7 wt% AL in Heptane is an aluminoxane used as a co-catalyst in the polymerization of olefins.

Chemical family: Metal Alkyls organometallics CAS number: 146905-79-5 Physical form: Liquid Regional availability: Africa, Asia, Asia Pacific, China, Europe, Global, India, Latin America, Middle East, North America, Oceania Chemical name: Modified Methylaluminoxane, type 3A

Applications: Heptane solutions of MMAO-3A are used as cocatalysts in polymerization of olefins and other monomers via single-site catalysts.

Market segment: Polymer production Detailed description: Heptane solutions of MMAO-3A are used as co-catalysts in the polymerization of olefins and other monomers via single-site catalysts. Can also be used for tri and tetramerization processes. Functions: Cocatalyst Applications: LAO, Rubber, Polyethylene

Product data sheet (Polymer production, 2025-12-4): Applications: Heptane solutions of MMAO-3A are used as cocatalysts in polymerization of olefins and other monomers via single-site catalysts. Storage: MMAO-3A in heptane is stable when stored under a dry, inert atmosphere and away from heat. MMAO-3A in heptane is significantly more stable to long-term storage than solutions of conventional polymethylaluminoxane. However, if MMAO-3A is stored for a prolonged period above 30°C we advise to shield the storage and/or dosage tank in order to protect them from direct sunlight. Packaging and transport: Heptane solutions of MMAO-3A are available worldwide in cylinders and portable tanks. In North America only, MMAO-3A in heptane is also available in tank trailers and rail cars. Containers are fabricated from carbon steel and are equipped with dip tubes for top discharge and all connections are located in the vapor space. Both packaging and transport meet the international regulations Safety and handling: Heptane solutions of MMAO-3A may ignite upon exposure to air and react violently with water. Heptane solutions of MMAO-3A must be handled under a dry, inert atmosphere, e.g. nitrogen or argon. Water must be scrupulously removed from process equipment prior to putting it into metal alkyls service. Failure to do so may result in an explosion. Products of complete combustion of heptane solutions of MMAO-3A are aluminum oxide, carbon dioxide and water. Heptane solutions of MMAO-3A cause severe burns to the skin and eyes. It is imperative that proper personal protective equipment be worn when handling heptane solutions of MMAO-3A. Please refer to the Safety Data Sheet (SDS) for further information on the safe storage, use and handling of heptane solution of MMAO-3A. This information should be thoroughly reviewed prior to acceptance of this product. The SDS is available at nouryon.com/sds-search Additional information: Availability: MMAO-3A in heptane is a commercial product (typically containing ~7% aluminum). The product is not available neat. Consult your Nouryon representative for further information.

Source: https://www.nouryon.com/product/mmao-3a-7-wt-al-in-heptane-modified-methylaluminoxane-type-3a--cas-146905-79-5/