CAS · 1120-02-1
Product Overview
Octadecy trimethyl ammonium bromide is a high-purity surfactants supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Characters (Visual method) | White to almost white powder |
|---|---|
| Main content on the dried basis (Titration) | 99.0% min |
| Color (Photoelectric colorimetry) | 100 Hazen max |
| Moisture (Karl Fischer titration) | 0.8% max |
Applications
Octadecyltrimethylammonium bromide is a quaternary ammonium surfactant widely used in pharmaceuticals, cosmetics, and chemical research. In pharmaceuticals, it functions as an antimicrobial agent, solubilizer, and emulsifying component in topical formulations, ointments, and creams. In personal care and cosmetic products, it is applied as a conditioning agent, antistatic additive, and emulsifier for lotions, hair care, and skin formulations. In chemical and materials research, it serves as a phase-transfer catalyst, facilitating organic reactions between immiscible phases, and as a template or stabilizer in nanoparticle synthesis and self-assembled monolayers. Additionally, it is employed in water treatment, textile processing, and surface modification due to its cationic surfactant properties.
Benefits
The benefits of octadecyltrimethylammonium bromide arise from its strong surface activity, cationic charge, and chemical stability. Its long hydrophobic alkyl chain combined with a positively charged quaternary ammonium head allows efficient interaction with both organic and aqueous phases, enhancing emulsification, solubilization, and microbial inhibition. The compound exhibits good thermal and chemical stability, making it compatible with various formulation conditions and reaction environments. Its solubility in organic solvents and water allows versatile use in laboratory and industrial applications. Additionally, its antimicrobial and antistatic properties provide added functionality in cosmetic, pharmaceutical, and material formulations.
Conclusion
Octadecyltrimethylammonium bromide is a versatile cationic surfactant with applications in pharmaceuticals, cosmetics, chemical synthesis, and material science. Its surface activity, emulsifying ability, and antimicrobial properties make it an essential ingredient for formulations, phase-transfer catalysis, and functional material development. By supporting enhanced solubilization, microbial control, and efficient reaction conditions, this compound continues to play a key role in modern chemical, pharmaceutical, and industrial applications.
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