195758
Tetramethylammonium bromide
98%, solid
동의어(들):
TMAB
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크기 선택
제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
(CH3)4N(Br)
CAS 번호:
Molecular Weight:
154.05
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
200-581-2
MDL number:
Beilstein/REAXYS Number:
3620955
Assay:
98%
Form:
solid
제품 이름
Tetramethylammonium bromide, 98%
InChI key
DDFYFBUWEBINLX-UHFFFAOYSA-M
InChI
1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
SMILES string
[Br-].C[N+](C)(C)C
assay
98%
form
solid
Quality Level
reaction suitability
core: ammonium
mp
>300 °C (lit.)
functional group
amine
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관련 카테고리
General description
Tetrabutylammonium bromide is a quaternary ammonium compound that is widely used as a phase transfer catalyst. Absolute viscosities of its aqueous solutions have been measured at various temperatures (20,25 and 30°C). Various physical properties (activity coefficient up to saturation, conductance, density and solubility in water) of TMABr have been evaluated.
Tetramethylammonium bromide (TMABr) is a quaternary ammonium salt that is widely used as a phase transfer catalyst. Absolute viscosities of its aqueous solutions have been measured at various temperatures (20,25 and 30°C). Various physical properties (activity coefficient up to saturation, conductance, density and solubility in water) of TMABr have been evaluated. Its impact on the first order rate constant values for the base hydrolysis of the following Fe(II) chelates has been investigated:
- bis(naphthylidene alanate) (nali)
- bis(naphthylidene phenylalanate) (nphali)
- bis(naphthylidene aspartate) (nasi)
- (naphthylidene histidinate) (nhi)
- bis(naphthylidenearginate) (nari)
Application
Tetrabutylammonium bromide may be used in the molten state in the following processes:
- Synthesis of (2S)-5-(3-phenyl-2-phthalimidylpropanoylamino)isophthalic acid.
- Synthesis of alkyl-substituted pyrroles in the absence of catalyst and organic solvent.
- Synthesis of dithioacetals from acetals by transthioacetalisation in a solvent free environment.
- Synthesis of polyamides (PAs) by the polymerization of terephthalic acid and diisocyanates.
- Catalyze the addition of thiols to conjugated alkenes.
- Dehydrochlorination of poly(vinyl chloride).
Tetramethylammonium bromide may be used as a template in the synthesis of small colloidal zeolite Y nanocrystals.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Oral
저장 등급
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
Viscosity of aqueous solutions. III. Tetramethylammonium bromide and the role of the tetraalkylammonium ions.
Nightingale Jr ER.
The Journal of Physical Chemistry, 66(5), 894-897 (1962)
Controlling size and yield of zeolite Y nanocrystals using tetramethylammonium bromide.
Holmberg BA, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 59(1), 13-28 (2003)
Dehydrochlorination of poly (vinyl chloride) by aqueous sodium hydroxide solution under two-phase conditions.
Kise H.
Journal of Polymer Science, 20(11), 3189-3197 (1982)
Kinetic study of the base-catalyzed hydrolysis of novel high-spin hydrophobic Fe(II)-azomethine amino acid chelates: Salt and structure effects on the reactivity
Russian Journal of General Chemistry, 85, 168-172 (2015)
Some physical properties of aqueous solutions of tetramethylammonium bromide and tetramethylammonium iodide
Levien BJ.
Australian Journal of Chemistry, 18(8), 1161-1170 (1965)
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