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HomeProduct name listTetraoctylammonium bromide

Tetraoctylammonium bromide

Synonym(s):Tetra-n-octylammonium bromide;TOAB

  • CAS NO.:14866-33-2
  • Empirical Formula: C32H68BrN
  • Molecular Weight: 546.79
  • MDL number: MFCD00011863
  • EINECS: 238-936-9
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2025-01-27 09:38:02
Tetraoctylammonium bromide Structural

What is Tetraoctylammonium bromide?

Chemical properties

white crystalline powder

The Uses of Tetraoctylammonium bromide

Tetraoctylammonium bromide (TOAB) has been used as a phase transfer agent to transfer gold tetrachloroaurate from aqueous phase to organic phase in a two-phase (organic-aqueous) method of alkanethiol stabilized gold nanoparticle synthesis. It is also used to prepare TOAB-capped gold nanoparticles, which shows well-defined plasmon absorption compared to thiol-capped nanoparticles.

The Uses of Tetraoctylammonium bromide

TOAB has been used as recognition element in formulating potentiometric membrane to develop an electronic tongue system for monitoring nitrogen species level in water samples.

What are the applications of Application

Tetraoctylammonium bromide is a phase transfer catalyst

General Description

Tetraoctylammonium bromide is an organic surface coating agent commonly used to control the size and shape during nanoparticle synthesis.

Flammability and Explosibility

Not classified

Properties of Tetraoctylammonium bromide

Melting point: 95-98 °C(lit.)
Boiling point: 209.3℃[at 101 325 Pa]
Density  1.0041 (rough estimate)
vapor pressure  0Pa at 25℃
refractive index  1.5260 (estimate)
Flash point: 100°C
storage temp.  Store below +30°C.
solubility  600g/l
form  Powder or Flakes
color  White to creamy-white
PH 7 (100g/l, H2O, 20℃)
Water Solubility  soluble
Sensitive  Hygroscopic
λmax λ: 240 nm Amax: 0.04
λ: 250 nm Amax: 0.03
λ: 260 nm Amax: 0.02
λ: 500 nm Amax: 0.02
BRN  4169176
Stability: Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference 14866-33-2(CAS DataBase Reference)

Safety information for Tetraoctylammonium bromide

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for Tetraoctylammonium bromide

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