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(1-Hexadecyl)trimethylammonium bromide is a cationic surfactant in hair conditioning products. It acts as a phase-transfer catalyst for the preparation of polyamide, polycarbonate and polythiocarbonate. It facilitates ligand-free palladium salt-catalyzed Heck and Suzuki cross-coupling reactions in water. It is an active component of the topical antiseptic cetrimide and used in household products such as shampoos and cosmetics. As a buffer solution, it is involved in the extraction of DNA as well as in the synthesis of gold nanoparticles and silican nanoparticles.
Surfactant-type catalyst (see Appendix 2) with many applications:
O-Alkylation of alcohols and phenols; see 2,6-Dimethylphenol, A11947. Surfactant-assisted permanganate oxidations: Can. J. Chem., 67, 1381 (1989). Reduction of alkyl halides to alkanes using zinc powder in micelles: Synth. Commun., 19, 1649 (1989). Control of ortho-para ratio in the bromination of anilines: Tetrahedron Lett., 30, 6209 (1989). Also facilitates ligand-free palladium salt-catalyzed Heck and Suzuki cross-coupling reactions in water: Tetrahedron Lett., 46, 3357 (2005).
Chatterjee, S.; Castro, M.; Feller, J. F. Tailoring selectivity of sprayed carbon nanotube sensors (CNT) towards volatile organic compounds (VOC) with surfactants. Food Chem. 2015, 168, 262-269.
Hazard Statements: H302-H315-H318-H335-H373
Harmful if swallowed. Causes skin irritation. Causes serious eye damage. May cause respiratory irritation. May cause damage to organs through prolonged or repeated exposure.
Precautionary Statements: P260-P264b-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P310-P312-P314-P330-P332+P313-P362-P501c
Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Get medical advice/attention if you feel unwell. Rinse mouth. If skin irritation occurs: Get medical advice/attention. Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant