Description
Specifications Table
Product Name – Decyltrimethylammonium bromide, 99%
Quantity/Pack Size – 25GR, 100GR
Form – Solid
Grade – Laboratory Reagent
Application – Surfactant, micelle formation, phase transfer catalyst
Product Overview
Decyltrimethylammonium bromide (DTAB) is a high-purity quaternary ammonium surfactant with a 99% assay, designed for precise laboratory applications. This cationic surfactant features a decyl (C10) alkyl chain and a permanently charged quaternary ammonium head group, enabling strong surface activity and micelle formation in aqueous solutions. The compound demonstrates excellent solubility in water and polar solvents, making it ideal for phase transfer catalysis, colloidal studies, and biochemical research. Its well-defined critical micelle concentration (CMC) and aggregation behavior provide reproducible results in surfactant-based experiments. The laboratory reagent grade ensures minimal impurities, with strict quality control for consistent performance in sensitive applications. DTAB’s amphiphilic structure allows it to interact with both hydrophobic and hydrophilic substances, facilitating its use in emulsification and solubilization processes. The solid form comes in tightly sealed packaging to prevent moisture absorption and maintain stability during storage.
FAQs
1. What is the critical micelle concentration (CMC) of this DTAB?
The CMC of decyltrimethylammonium bromide is approximately 65-70 mM at 25°C in pure water, though this value may vary slightly depending on solution conditions.
2. Can this product be used for preparing reverse micelles?
While DTAB primarily forms normal micelles in aqueous solutions, it can participate in mixed surfactant systems for reverse micelle formation when combined with appropriate co-surfactants and oils.
3. What is the counterion for this quaternary ammonium salt?
The counterion in this compound is bromide (Br⁻), which balances the positive charge of the quaternary ammonium head group.
4. How should I handle this product to prevent contamination?
Use clean, dry spatulas and store in a dedicated container for surfactants to avoid cross-contamination. Work in a clean environment to prevent dust or moisture absorption.
5. What is the typical shelf life of this product when stored properly?
When stored in its original sealed container at room temperature and protected from moisture, this product maintains its specified purity for at least 24 months from the date of manufacture.
