294136
Tetraoctylammonium bromide
98%, solid
Synonym(s):
TOAB
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About This Item
Linear Formula:
[CH3(CH2)7]4N(Br)
CAS Number:
Molecular Weight:
546.79
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352107
EC Number:
238-936-9
MDL number:
Beilstein/REAXYS Number:
4169176
Product Name
Tetraoctylammonium bromide, 98%
Quality Segment
assay
98%
form
solid
reaction suitability
core: ammonium
mp
95-98 °C (lit.)
SMILES string
[Br-].CCCCCCCC[N+](CCCCCCCC)(CCCCCCCC)CCCCCCCC
InChI
1S/C32H68N.BrH/c1-5-9-13-17-21-25-29-33(30-26-22-18-14-10-6-2,31-27-23-19-15-11-7-3)32-28-24-20-16-12-8-4;/h5-32H2,1-4H3;1H/q+1;/p-1
InChI key
QBVXKDJEZKEASM-UHFFFAOYSA-M
General description
Tetraoctylammonium bromide is an organic surface coating agent commonly used to control the size and shape during nanoparticle synthesis.
Application
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.
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Irrit. 2
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
213.8 °F - closed cup
flash_point_c
101 °C - closed cup
ppe
dust mask type N95 (US), Eyeshields, Gloves
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