Trimethylhexadecylammonium chloride

Catalog NumberHG112027

CAS Number112-02-7

CategoryCationic Surfactants

Synonyms

1-Hexadecanaminium, N,N,N-trimethyl-, chloride;N,N,N-Trimethyl-1-hexadecanaminium chloride;Cetrimonium chloride;Cetyl trimethyl ammonium chloride;CTAC;CETAC

Molecular Weight

320

Molecular Formula

C19H42ClN

Appearance

Solid / Paste

Application

Use as disinfectant, antimicrobial agent, preservative.; Use as antistatic agent.; Use as emulsifying agent, dispersing agent.; Use as flocculant.; Use as deodorant.

Active Content

95%

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Case Study

Hexadecyl Trimethyl Ammonium Chloride-Modified Nano-Pumice Removes Acid Red 18 Dye from Water

Kasraee, Mahboobeh, et al. Scientific Reports 13.1 (2023): 13833.

Hexadecyl-trimethyl ammonium chloride (HDTMA.Cl) was used to modify nano-pumice (HMNP), a novel adsorbent for removing Acid Red 18 (AR18) dye from aqueous solution.
Experimental Protocol: Raw pumice was crushed and ball-milled to nano scale, washed, activated in 1 N HCl for 48 h, dried at 105 °C for 8 h, then modified with a 2.5 mmol HDTMA.Cl solution at pH 10, shaken 10 h at 220 rpm, filtered, dried at 120 °C and washed. The adsorbent was characterized by XRD, XRF, FESEM, TEM, EDAX, BET and FTIR. Batch tests used 25 mL dye solution, 0.5-3 g/L adsorbent, pH 3-9, contact time 10-90 min and initial AR18 10-70 mg/L, with absorbance read at 507 nm. Response surface methodology with central composite design modelled the four variables.
Performance Evaluation: At optimum conditions (pH 4.5, sorbent dose 2.375 g/L, AR18 25 mg/L, contact time 70 min) removal reached 99%, or 98.8% in practice. Langmuir (R² = 0.996) and pseudo-second-order (R² = 0.999) models fitted best, with maximum sorption capacity 12.84 mg/g and adsorption energy 2.64 L/mg. The pH of zero point charge was 5.6 and BET surface area rose from 1.49 to 10.27 m²/g. Adsorption was spontaneous and endothermic, and efficiency fell from 99% to 85% after five consecutive recycles.

Hexadecyl Trimethyl Ammonium Chloride-Modified Montmorillonite for High-Efficiency Lead Ion Adsorption

Massoudinejad, Mohamadreza, et al. MethodsX 6 (2019): 2217-2229.

Hexadecyl trimethyl ammonium chloride (HTAC) was used to modify montmorillonite nano-clay, producing N-HTAC, a new adsorbent for Pb(II) removal from aqueous solutions.
Experimental Protocol: HTAC (C19H42ClN, purity above 99%, molecular weight 320 g/mol) was added to 250-mL flasks with 3 g nano-clay (Cloisite Na+); samples were stirred for one day at 20 °C, 300 rpm and pH 7.0, centrifuged, washed five times with pure water and dried at 105 °C. Characterization used FESEM coupled with EDAX, powder XRD and BET/BJH analysis. A 1000 mg/L Pb2+ stock solution was diluted to desired concentrations; 100 mL solutions were mixed, pH-adjusted, and after equilibration centrifuged for 5 min at 5000 rpm and analysed by ICP-OES.
Performance Evaluation: Maximum Pb2+ removal of 99.99% was obtained at initial Pb2+ 0.1 mg/L, adsorbent dose 4.33 g/L, HTAC dose 4.19 g/L, pH 7.13, 28.06 °C and contact time 103.4 min. The reduced full second-order model gave multiple R-squared 0.945, adjusted R-squared 0.936 and insignificant lack of fit 0.98. The pH of zero point charge was 6.5, and BET surface area increased from 4.46 to 61.99 m²/g with mean pore diameter rising from 6.1 to 7.5 nm.

PLA Nanofiber Composite with Hexadecyl Trimethyl Ammonium Chloride-Modified Montmorillonite Clay

Mushtaq, Muhammad, et al. Coatings 10.5 (2020): 484.

Hexadecyl trimethyl ammonium chloride-modified montmorillonite (CTAC-MMT) was incorporated into electrospun polylactic acid (PLA) nanofibers to create a new composite for potential filtration, antibacterial and biomedical uses.
Experimental Protocol: PLA solutions of 10, 12.5 and 15% w/v in a dichloromethane/dimethylformamide/tetrahydrofuran mixture (80:20:20) were electrospun at 25 °C using 20-30 kV, a 15 cm tip-to-collector distance and a 1 mL/h feed, collecting fibers on aluminium foil. PLA nanofibers were immersed in absolute methanol at 25 plus or minus 0.1 °C for 15 min, dried to constant weight, then dip-coated in 0.1%, 0.5% or 1.0% w/w aqueous MMT suspensions at 25 °C for 12 h, yielding PLA/CTAC-MMT1, PLA/CTAC-MMT2 and PLA/CTAC-MMT3. The composites were characterized by FTIR, SEM-EDS, XPS, XRD and DSC, plus tensile testing and contact-angle measurement.
Performance Evaluation: Mean nanofiber diameter increased with polymer concentration: 223 plus or minus 57 nm at 7.5% w/v, 303 plus or minus 88 nm at 10%, 462 plus or minus 125 nm at 12.5% and 685 plus or minus 206 nm at 15%. Adding CTAC-MMT raised tensile strength above neat PLA (2.5 MPa) by about 20% at 0.1%, 36% at 0.5% and 44% at 1.0%. Contact angle fell from 141 plus or minus 2.8 degrees for PLA to 131 plus or minus 1.9 degrees at 1.0% MMT, and water absorption increased from 0.45% to 0.70%.

• Synonyms: 1-Hexadecanaminium, N,N,N-trimethyl-, chloride;N,N,N-Trimethyl-1-hexadecanaminium chloride;Cetrimonium chloride;Cetyl trimethyl ammonium chloride;CTAC;CETAC
• Molecular Weight: 320
• Molecular Formula: C19H42ClN
• Appearance: Solid / Paste
• Application: Use as disinfectant, antimicrobial agent, preservative.; Use as antistatic agent.; Use as emulsifying agent, dispersing agent.; Use as flocculant.; Use as deodorant.
• Active Content: 95%