Tetradecyltrimethylammonium bromide

CAS Number
1119-97-7
EC Number
214-291-9
Abbreviation
TTAB

What is Tetradecyltrimethylammonium bromide?

Tetradecyltrimethylammonium bromide (CAS 1119-97-7), abbreviated TTAB, is a quaternary ammonium cationic surfactant.

Where is Tetradecyltrimethylammonium bromide used?

  • Personal care: conditioning agent and emulsifier in hair care and skin products, depositing active ingredients onto hair or skin surfaces
  • Industrial and institutional cleaning: antimicrobial active with bactericidal and fungicidal efficacy
  • Textile and leather processing: softening and antistatic agent improving handle and reducing static charge
  • Paper manufacturing: surface modification and retention aid interacting with anionic fiber surfaces
  • It functions as an emulsifier, wetting agent, biocide, and surface conditioner.

Good to know: Performance is driven by its cationic charge interacting with negatively charged substrates and microbial membranes.

Commercial specifications

  • Technical and high-purity laboratory grades
  • Purity specifications commonly ranging from 98% to 99%+

Other Names (Synonyms)

Alkyltrimethylammonium Bromide|trimethyl(tetradecyl)azanium bromide|Myristyltrimethylammonium bromide|TTAB

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What are the physical properties of Tetradecyltrimethylammonium bromide?

Melting Point 247.5 °C
Density 1.00 g/cm³
Appearance white powder
Color White
Form Fine Crystalline Powder
Water Solubility 20 g/100 mL
Vapor Pressure 0Pa at 25℃
Refractive Index 1.5260 (estimate)
pH pH (50g/l, 25℃ : 4.0~6.0
Log P 2.2 at 20℃

How is Tetradecyltrimethylammonium bromide classified and handled safely? Learn More

Danger
GHS05· Corrosive GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard

Hazard Statements

H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
H318 Causes serious eye damage

Precautionary Statements

P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.

Which trade and regulatory codes apply to Tetradecyltrimethylammonium bromide?

HS Code 29239000
UN Number 3263
ADR Class 8
Packing Group II
Storage Class 11 - Combustible Solids
WGK (Germany) 3
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