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Tetrabutylammonium Bromide

CAS No.: 1643-19-2
Molecular Formula: C16H36BrN
Molecular Weight: 322.37

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product description

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].

Chemical Properties

Property	Value
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)

Safety Information

Property	Value
Hazard symbols	Xi, Xn
Hazard class codes	36/37/38-22
Safety descriptions	26-36-37/39
WGK Germany	3
F	3
Hazard Note	Irritant
TSCA	TSCA listed
HS code	29239000
Storage class	11 - Combustible solids
Hazard class (categories)	Acute toxicity, Category 4, Oral Hazardous to the aquatic environment — long-term hazard, Category 3 Eye irritation, Category 2 Reproductive toxicity, Category 2 Skin irritation, Category 2

Product Usage
Tetrabutylammonium Bromide (TBAB for short), with CAS No. 1643-19-2 and chemical formula C₁₆H₃₆BrN, appears as white crystalline powder, easily soluble in solvents such as water, ethanol and acetone, and is a commonly used quaternary ammonium salt phase transfer catalyst. Its core application is in the field of organic synthesis. As an efficient phase transfer catalyst, it can effectively promote the reaction between aqueous and organic phases, accelerate the progress of nucleophilic substitution, redox, elimination and other reactions, greatly improve reaction rate and yield, and is widely used in fine chemical fields such as drug synthesis, spice preparation and dye synthesis. In the electrochemical field, it can be used as a supporting electrolyte for non-aqueous electrolytes to improve electrolyte conductivity. In addition, it is used as an ion-pair reagent in the field of chemical analysis to assist chromatographic separation, and is also used as an intermediate in organic synthesis and surfactant, serving as an indispensable special chemical raw material in fine chemical and electrochemical fields.

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