Tetrabutylammoniumbromid

Bezeichnung:Tetrabutylammoniumbromid

CAS-Nr1643-19-2

Englisch Name:Tetrabutylammonium bromide

CBNumberCB3347418

SummenformelC16H36BrN

Molgewicht322.37

MOL-Datei1643-19-2.mol

Synonyma

Tetrabutylammoniumbromid

Tetrabutylammoniumbromid physikalisch-chemischer Eigenschaften

Schmelzpunkt	102-106 °C(lit.)
Siedepunkt	102 °C
Dichte	1.039 g/mL at 25 °C
Dampfdruck	0Pa at 25℃
Brechungsindex	n20/D 1.422
Flammpunkt	100℃
storage temp.	Store below +30°C.
Löslichkeit	H₂O: 0.1 g/mL, clear, colorless
pka	0[at 20 ℃]
Aggregatzustand	Crystalline Powder
Wichte	1.007
Farbe	White to slightly cream
Geruch (Odor)	Amine like
PH	3.5 to 7.0 (50 g/L, 25 ℃)
Wasserlöslichkeit	600 g/L (20 ºC)
Sensitive	Hygroscopic
maximale Wellenlänge (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	3570983
Stabilität	Stable. Incompatible with strong oxidizing agents. Protect from moisture.
InChIKey	JRMUNVKIHCOMHV-UHFFFAOYSA-M
LogP	0.839 at 25℃
CAS Datenbank	1643-19-2(CAS DataBase Reference)
NIST chemische Informationen	Tetra-N-butylammonium bromide(1643-19-2)
EPA chemische Informationen	Tetrabutylammonium bromide (1643-19-2)

Sicherheit

Kennzeichnung gefährlicher	Xi,Xn
R-Sätze:	36/37/38-22
S-Sätze:	26-36-37/39
WGK Germany	3
F	3
Hazard Note	Irritant
TSCA	Yes
HS Code	29239000

Gefahreninformationscode (GHS)

Tetrabutylammonium bromide Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R22:Gesundheitsschädlich beim Verschlucken.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
white crystals or powder
Verwenden
Tetrabutylammonium Bromide is used in the synthesis of polymer solar cells. Also used in the synthesis of single component green-light emitting electrochemical cells.
Definition
ChEBI: Tetrabutylammonium bromide is a tetrabutylammonium salt with bromide as the anionic counterpart. It is an organic bromide salt and a tetrabutylammonium salt.
benefits
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].
Allgemeine Beschreibung
Tetrabutylammonium bromide, a quaternary ammonium compound widely used as a phase transfer catalyst. TBAB decreases the retention time and removes 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 polymer synthesis.
Flammability and Explosibility
Not classified
läuterung methode
Crystallise the salt from *benzene (5mL/g) at 80o by adding hot n-hexane (three volumes) and allowing to cool. Dry it over P2O5 or Mg(ClO4)2, under vacuum. The salt is very hygroscopic. It can also be crystallised from ethyl acetate or dry acetone by adding diethyl ether and dried in vacuo at 60o for 2 days. It has been crystallised from acetone by addition of diethyl ether. It is so hygroscopic that all manipulations should be carried out in a dry-box. It has been purified by precipitation from a saturated solution in dry CCl4 on addition of cyclohexane or by recrystallisation from ethyl acetate, then heating in vacuum to 75o in the presence of P2O5. [Symons et al. J Chem Soc, Faraday Trans 1 76 2251 1908.] It also recrystallises from CH2Cl2/diethyl ether and is dried in a vacuum desiccator over P2O5. [Blau & Espenson J Am Chem Soc 108 1962 1986, Beilstein 4 IV 657.]
Einzelnachweise
[1] Banik B, et al. Tetrabutylammonium Bromide (TBAB) Catalyzed Synthesis of Bioactive Heterocycles. Molecules, 2020; 25: 5918.

Tetrabutylammonium bromide Upstream-Materialien And Downstream Produkte

Tetrabutylammoniumbromid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

1643-19-2, Tetrabutylammonium bromide Verwandte Suche:

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