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404594

Sigma-Aldrich

Methylaluminoxane

10% in toluene

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About This Item

Linear Formula:
[(CH3)0.95(n-C8)H17]0.05AlO]n
CAS Number:
206451-54-9
MDL number:
MFCD00192274
UNSPSC Code:
12352103
NACRES:
NA.22

vapor pressure

0.76 mmHg ( 60 °C)

Quality Level

100

form

liquid

concentration

10% in toluene

bp

111 °C

density

0.895 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

[Al](=O)C

InChI key

CPOFMOWDMVWCLF-UHFFFAOYSA-N

General description

Methylaluminoxane is an oligomeric compound used as a co-catalyst in olefin polymerization reactions to produce polyolefins.

Application

Dialkylmetallocenes can undergo exchange reactions with methylaluminoxane.

Packaging

The 25 mL Sure/Seal™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Classifications

Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Pyr. Liq. 1 - Repr. 2 - Skin Corr. 1B - STOT RE 2 Inhalation - STOT SE 3 - Water-react 1

Target Organs

Central nervous system

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 3

Flash Point(F)

39.2 °F

Flash Point(C)

4 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
STBK7977
STBK5991
STBK0626
STBJ0377
STBG1386V

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Reactivity trends of lewis acidic sites in methylaluminoxane and some of its modifications
Zaccaria, Francesco and Budzelaar
Inorganic Chemistry, 59, 5751-5759 (2020)
Resconi, L.
Macromolecules, 23, 4489-4489 (1990)
Spectroscopic studies of synthetic methylaluminoxane: Structure of methylaluminoxane activators
Joshi, Anuj and Collins
Chemistry?A European Journal , 27, 8753-8763 (2021)

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