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Home > Products > Products > Quaternary Ammonium Salts > Tetrabutylammonium Bromide CAS#1643-19-2

Tetrabutylammonium Bromide CAS#1643-19-2

Name: Tetrabutylammonium Bromide CAS#1643-19-2
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Tetrabutylammonium Bromide CAS#1643-19-2
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Chemical Name：Tetrabutylammonium Bromide
CAS No.:1643-19-2
Molecular Formula：C16H36BrN
Molecular weight:322.37
Sample: Available
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PRODUCT DESCRIPTION

Tetrabutylammonium Bromide CAS#1643-19-2

Tetrabutylammonium bromide is an environmentally benign, non-volatile, non-flammable, non-corrosive, low-cost, commercially available ammonium salt with high thermal and chemical stability. In TBAB, tetrabutylammonium salt can dissolve in both aqueous as well as in organic solvents, which helps to transport the water-soluble anionic reactants into the organic phase. Moreover, molten TBAB was also employed as an efficient ionic liquid to carry out organic transformations under solvent-free conditions[1].

Melting point	102-106 °C(lit.)
Boiling point	102 °C
density	1.039 g/mL at 25 °C
bulk density	700kg/m3
vapor pressure	0Pa at 25℃
refractive index	n20/D 1.422
Fp	100℃
storage temp.	Store below +30°C.
solubility	H2O: 0.1 g/mL, clear, colorless
form	Crystalline Powder
pka	0[at 20 ℃]
Specific Gravity	1.007
color	White to slightly cream
Odor	Amine like
PH	3.5 to 7.0 (50 g/L, 25 ℃)
Water Solubility	600 g/L (20 ºC)
Sensitive	Hygroscopic
λmax	λ: 240 nm Amax: 0.04λ: 250 nm Amax: 0.03λ: 260 nm Amax: 0.02λ: 500 nm Amax: 0.02
BRN	3570983
Stability:	Stable. Incompatible with strong oxidizing agents. Protect from moisture.
InChIKey	JRMUNVKIHCOMHV-UHFFFAOYSA-M
LogP	0.839 at 25℃
CAS DataBase Reference	1643-19-2(CAS DataBase Reference)
NIST Chemistry Reference	Tetra-N-butylammonium bromide(1643-19-2)
EPA Substance Registry System	Tetrabutylammonium bromide (1643-19-2)

Product Usage

Tetrabutylammonium bromide (TBAB) is a quaternary ammonium compound. It is the most widely used phase transfer catalyst. Its interfacial properties have been studied in case of hydroxide initiated reactions. This may be applied in understanding the mechanism of phase transfer reactions. TBAB is reported to decrease retention time and remove peak tailing by acting as an ion pair reagent during the chromatographic analysis of quaternary ammonium compounds. In the molten state TBAB behaves like an ionic liquid which is a promising green alternative to organic solvents in organic synthesis. Its molar heat capacity, entropy and free energy function have been determined.

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