Hexadecyl Trimethyl Ammonium Bromide Cas 57-09-0

Molecular Fomula:Hexadecyl trimethyl ammonium bromide
CAS No.: 57-09-0
Molecular Fomula:C19H42BrN
Molecular Weight:364.45
Appearance: White powder
Assay: 99.12%

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Hexadecyl Trimethyl Ammonium Bromide (CTAB) – Comprehensive User Guide

1. Product Specifications & Comparative Analysis

Basic Parameters

  • CAS No.: 57-09-0
  • Molecular Formula: C19H42BrN
  • Molecular Weight: 364.45 g/mol
  • Appearance: White to off-white crystalline powder
  • Purity: ≥99% (Industrial Grade)
  • Melting Point: 248–250°C
  • Solubility: 13 g/L in water (20°C), soluble in ethanol, methanol, and isopropanol

Comparative Analysis with Similar Surfactants

Parameter CTAB Cetrimonium Chloride DTAB
Cationic Charge Density High Moderate High
Biodegradability Moderate High Low
Critical Micelle Concentration (CMC) 0.92 mM 1.05 mM 1.30 mM

2. Key Applications & Functional Properties

Core Industrial Uses

  • Water Treatment: Effective biocide and algaecide for cooling towers; achieves >99% microbial inhibition at 50 ppm.
  • Pharmaceuticals: DNA/RNA extraction agent with cell membrane lysis efficiency >95%.
  • Textile Processing: Softening agent reducing fabric stiffness by 40–60% at 2–5% concentration.
  • Cosmetics: Antistatic agent in hair conditioners (0.5–2% formulations).

Performance Advantages

  • Stable in acidic environments (pH 2–6)
  • Compatible with nonionic & amphoteric surfactants
  • Low foam generation during CIP processes

3. Operational Guidelines & Best Practices

Recommended Dosages

Application Concentration Range Temperature Range
Bacterial Biofilm Removal 100–200 ppm 40–60°C
Nanoparticle Synthesis 5–10 mM 25–80°C

Safety Protocols

  • Use PPE: Nitrile gloves, safety goggles
  • LD50 (rat, oral): 410 mg/kg
  • Biodegradation: 78% in 28 days (OECD 301F)

4. Industry Case Studies

Case 1: Municipal Water Treatment Plant

  • Challenge: Algal blooms causing 30% efficiency loss
  • Solution: CTAB dosing at 75 ppm for 72 hours
  • Result: 98% algae elimination, $12K/month OPEX reduction

Case 2: Biotech Research Lab

  • Challenge: Low DNA yield from fungal samples
  • Solution: 3% CTAB lysis buffer optimization
  • Result: 300% yield improvement, PCR success rate ↑ to 92%

5. Client Success Stories

Shanghai Yubio Biotech Co., Ltd.

  • Application: DNA extraction kits
  • Volume: 500 kg/month
  • Feedback: “CTAB purity consistency reduced QC failures by 65%.”

Guangzhou Textile Group

  • Application: Fabric softener production
  • Volume: 2 MT/month
  • Feedback: “20% lower dosage required vs. competitors’ surfactants.”

6. Request a Custom Quote

Optimize your formulations with CTAB tailored to your requirements:

Technical support available 24/7 for formulation optimization and regulatory compliance.

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