Benzyldodecyldimethylammonium bromide, with the CAS number 7281-04-1, is a quaternary ammonium compound. It is a white to pale yellow crystalline powder with a characteristic odor. This product is typically supplied by factories at a good price, which is attractive for various industries.
The chemical formula of Benzyldodecyldimethylammonium bromide is C21H38BrN, and its molecular weight is approximately 384.44 g/mol. It has good solubility in water and many organic solvents, such as ethanol and acetone. The melting point of this compound is around 50 - 55°C, and it is stable under normal storage conditions.
Benzyldodecyldimethylammonium bromide has a wide range of applications across different industries:
Disinfection Use: For surface disinfection, prepare a solution of Benzyldodecyldimethylammonium bromide with a concentration of 0.1 - 0.5% (w/v) in water. Apply the solution to the surface using a sprayer, cloth, or mop, and let it stand for at least 10 - 15 minutes before wiping or rinsing. For more stubborn stains or higher - risk areas, a higher concentration may be required, but it should be used with caution as it may cause irritation.
Preservative in Cosmetics: When using it as a preservative in cosmetics, add it to the product at a concentration recommended by relevant regulations, usually between 0.01 - 0.1% (w/w). Make sure to add it during the production process at an appropriate temperature to ensure its effectiveness and stability.
Industrial Water Treatment: In industrial water treatment, the dosage of Benzyldodecyldimethylammonium bromide depends on the water quality and the specific requirements of the system. Generally, it is added at a concentration of 5 - 50 ppm. Regular monitoring of the water quality is necessary to adjust the dosage accordingly.
Hospital Disinfection Case: A large - scale hospital in a major city was facing a high rate of hospital - acquired infections. They decided to use Benzyldodecyldimethylammonium bromide for surface disinfection. By preparing a 0.2% (w/v) solution and applying it to patient rooms, operating theaters, and other high - traffic areas three times a day, they were able to significantly reduce the incidence of infections within a month. The number of reported cases of Staphylococcus aureus and Escherichia coli infections dropped by 40% and 35% respectively.
Cosmetic Preservation Case: A cosmetic company was having issues with product spoilage in their line of moisturizing creams. They added Benzyldodecyldimethylammonium bromide at a concentration of 0.05% (w/w) during the production process. After extensive shelf - life testing, they found that the products remained stable and free of microbial growth for up to two years, which was a significant improvement compared to their previous formula.
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