Description
Specifications Table
Product Name – Cetyltrimethylammonium bromide LR
Quantity/Pack Size – 100 g
Form – White crystalline powder
Grade – Laboratory Reagent (LR)
Application – Surfactant, DNA extraction, biochemical research
Product Overview
Cetyltrimethylammonium Bromide (CTAB) LR is a quaternary ammonium surfactant widely recognized for its cationic properties and high purity. This laboratory-grade compound is synthesized to meet stringent quality standards, ensuring consistent performance in critical applications. The white crystalline powder exhibits excellent solubility in water and polar organic solvents, making it a versatile reagent in biochemical protocols. Its molecular structure features a long hydrophobic alkyl chain (C16) and a positively charged quaternary ammonium head, which enables strong interactions with negatively charged biomolecules. The LR grade designation guarantees minimal impurities, ensuring reliable results in sensitive procedures. CTAB functions as an effective detergent and phase transfer catalyst, with its micelle-forming properties playing a crucial role in various chemical processes. The compound maintains stability under standard laboratory conditions, though it should be stored away from moisture to prevent hydration. Its chemical formula (C19H42BrN) and molecular weight (364.45 g/mol) are precisely controlled during manufacturing to ensure batch-to-batch consistency. The product’s high surface activity and critical micelle concentration make it particularly valuable in formulations requiring precise control over colloidal systems.
FAQs
1. What is the exact chemical composition of Cetyltrimethylammonium Bromide?
Cetyltrimethylammonium Bromide has the chemical formula C19H42BrN, consisting of a 16-carbon alkyl chain attached to a quaternary ammonium group with bromide as the counterion.
2. Can this CTAB be used for preparing micellar solutions?
The LR grade CTAB is suitable for preparing micellar solutions due to its well-defined critical micelle concentration and surface-active properties.
3. What is the recommended storage temperature for this product?
Store at room temperature between 15-30°C in a tightly sealed container, protected from moisture and direct sunlight.
4. How does the LR grade differ from other available grades?
The LR grade undergoes additional purification steps to remove trace metals and organic impurities, making it more suitable for sensitive laboratory applications.
5. What safety precautions should be taken when handling this compound?
Use standard laboratory safety measures including gloves, goggles, and proper ventilation, as CTAB can be irritating to skin and mucous membranes.
