Description
Specifications Table
Product Name – Hexadecyltrimethylammonium chloride, 99%
Quantity/Pack Size – 5GR, 25GR, 100GR, 500GR
Form – White crystalline powder
Grade – Laboratory reagent grade (99% purity)
Application – Surfactant, phase transfer catalyst, nanoparticle synthesis
Product Overview
Hexadecyltrimethylammonium chloride (CTAC) is a high-purity (99%) quaternary ammonium surfactant widely used in laboratory applications requiring precise colloidal control and micelle formation. This white, crystalline powder exhibits excellent water solubility and forms stable cationic micelles, making it ideal for phase transfer catalysis, nanoparticle synthesis, and stabilization of emulsions. The reagent-grade quality ensures minimal impurities, providing consistent results in sensitive analytical and synthetic procedures. CTAC’s long hydrophobic tail (C16) and positively charged head group enable strong interactions with anionic species, enhancing its utility in extraction processes and interfacial chemistry. The compound remains stable under standard lab conditions but should be stored in a cool, dry environment to prevent moisture absorption. Its versatility extends to applications in polymer science, where it acts as a template for mesoporous material synthesis, and in biochemical assays requiring controlled surface charge modifications. The 99% purity specification guarantees reproducibility in experimental protocols, while the powder form allows for precise weighing and dissolution.
FAQs
1. What is the solubility of CTAC in water and organic solvents?
CTAC is highly soluble in water (forming clear solutions) and polar organic solvents like methanol and ethanol. It has limited solubility in nonpolar solvents such as hexane or toluene. For optimal dissolution, warm the solvent to 30-40°C and stir gently to avoid foaming.
2. Can this CTAC grade be used for synthesis of gold nanoparticles?
Yes, the 99% pure CTAC is suitable for gold nanoparticle synthesis as it acts as both a reducing agent stabilizer and shape-directing agent. The cationic head groups bind to gold surfaces, enabling controlled growth of anisotropic structures like nanorods or nanoprisms when combined with seed-mediated growth methods.
3. How does CTAC compare to CTAB for laboratory applications?
CTAC and CTAB (cetyltrimethylammonium bromide) are structurally similar, but CTAC’s chloride counterion offers slightly higher water solubility and lower Krafft temperature, making it more effective in cold aqueous systems. CTAB is more commonly used in DNA extraction, while CTAC excels in phase transfer catalysis due to its stronger ion-pairing ability with certain anions.
4. What precautions should be taken when handling CTAC powder?
While CTAC is not classified as highly hazardous, it can cause mild skin and eye irritation. Wear nitrile gloves, safety goggles, and a lab coat when handling. Avoid inhaling the powder by working in a fume hood when weighing larger quantities. The compound is incompatible with strong oxidizing agents and should be stored away from open flames.
5. Does the packaging include a certificate of analysis for this product?
Each batch of our 99% CTAC is accompanied by a certificate of analysis detailing purity confirmation via HPLC or titration, heavy metal content, moisture analysis, and melting point verification. The COA is available as a digital download on the product page and can also be requested via email for bulk orders.
