Cetyltrimethylammonium bromide

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A quaternary ammonium salt. Cetytrimethylammonium bromide, or cetrimonium bromide, is used as a cationic detergent, surfactant, and bactericide. It has been added to glue-paste formulations as a nontoxic alternative to phenol (Ackroyd 1996).

Synonyms and Related Terms

cetyltrimethylammonium bromide; CTAB; hexadecyltrimethylammonium bromide; cetrimonium bromide; Cetab; Centimide

Chemical structure

Cetyltrimethylammonium bromide.jpg

Other Properties

Soluble in water, ethanol, chloroform. Insoluble in ether, benzene, acetone.

Composition C16H33(CH3)3NBr
CAS 57-09-0
Melting Point 237-243
Molecular Weight mol. wt. = 364.45

Hazards and Safety

Harmful if swallowed. Contact causes severe irritation.

Mallinckrodt Baker: MSDS

Additional Information

P.Ackroyd "Glue-Paste Lining of Paintings: An Evaluation of Some Additive Materials" ICOM Edinburgh 1996 p.231-238