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1643-19-2

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Tetrabutylammonium Bromide(Tbab)
Cas No: 1643-19-2
No Data 1 Metric Ton 1000 Metric Ton/Year Simagchem Corporation Contact Supplier
Tetrabutylammonium bromide
Cas No: 1643-19-2
No Data 1 Gram 1-1000 Metric Ton/Day Hangzhou Dayangchem Co., Ltd. Contact Supplier
Tetrabutyl ammonium bromide manufacture
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No Data 50 Gram 10 Metric Ton/Month Hangzhou ZeErRui Chemical Co., Ltd. Contact Supplier
fresh stock: Tetrabutylammonium bromide(TBAB)with best price
Cas No: 1643-19-2
USD $ 1.0-1.0 / Kilogram 1 Kilogram 1000 Metric Ton/Year Scale Chemical Corporation Contact Supplier
Tetrabutylammonium bromide
Cas No: 1643-19-2
No Data No Data No Data Aecochem Corp. Contact Supplier
High quality Tetrabutylammonium bromide
Cas No: 1643-19-2
USD $ 1.0-1.0 / Kilogram 10 Kilogram 50 Metric Ton/Day Hubei Jusheng Technology Co., Ltd., Contact Supplier
High purity Tetrabutylammonium bromide with high quality and best price cas:1643-19-2
Cas No: 1643-19-2
USD $ 7.0-15.0 / Kilogram 1 Kilogram 99999 Kilogram/Year Hangzhou Dingyan Chem Co., Ltd Contact Supplier
Tetrabutylammonium bromide
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USD $ 2100.0-2100.0 / Metric Ton 20 Metric Ton 10 Metric Ton/Month Hebei yanxi chemical co.,LTD. Contact Supplier
Tetrabutylammonium bromide
Cas No: 1643-19-2
No Data 2 Kilogram 5000 Metric Ton/Month Hefei TNJ chemical industry co.,ltd Contact Supplier
Tetrabutylammonium bromide
Cas No: 1643-19-2
No Data 1 Kilogram 20 Metric Ton/Month Henan Allgreen Chemical Co.,Ltd Contact Supplier

1643-19-2 Usage

Definition

ChEBI: A tetrabutylammonium salt with bromide as the anionic counterpart.

Purification Methods

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.]

Application

(1) Used as a reagent for the analysis of organic synthesis.
(2) Tetrabutylammonium bromide is also an effective phase transfer catalyst.
Phase transfer catalyst, referred to as PTC, is able to transfer the aqueous phase (or organic phase) to the organic phase (or aqueous phase) catalyst, which can make the reaction between the aqueous phase and the organic phase of the catalyst. PTC has the function of changing the degree of ion solvation, increasing the activity of ion reaction, speeding up the reaction rate and so on. Solve the problem of the past in the two phases of the reaction is difficult to react.
Common quaternary ammonium salt phase transfer catalysts are: benzyl triethyl ammonium chloride, trioctyl methyl ammonium chloride, tetramethyl ammonium bromide, tetrapropylammonium chloride, tetrabutylammonium bromide , tetrabutyl ammonium iodide, benzyl triethyl ammonium bromide, triethyl hexyl bromide, octyl triethylammonium bromide.
Phase transfer catalyst is widely applied in organic synthesis: R2C for preparing compounds (carbene type compound), further preparation of the corresponding nitrile, isonitrile, Halon, dichloromethane cyclopropane derivatives, hydroxy acids and diazomethane. For the alkylation reaction, compared with traditional methods, to avoid the harsh conditions of dry operation, and high yield, it can also be used in the redox reaction, ester hydrolysis, substitution reaction, condensation reaction, addition reaction, polymerization reaction, addition reaction of carbon and the elimination of reaction and so on.
(3) For organic synthesis intermediates, phase transfer catalyst
(4) Ion-pairing reagents for the synthesis of bacampicillin, sultamicillin like.
(5) Ion pair chromatography reagents, phase transfer catalyst. Bacampicillin, sultamicillin like synthesis.

Physical and Chemical Properties

Tetrabutylammonium bromide, also known as tetrabutylammonium bromide. White crystal, deliquescence. 118 ℃ melting point. Soluble in water, alcohol, ether and acetone, slightly soluble in benzene.

Figure 1:  a structural formula of tetrabutylammonium bromide

Uses

PTC catalyst

Toxicity

The acute oral LD50 (mouse): 590mg/kg. Inhalation, ingestion and skin contact toxic to the skin, eyes and respiratory system irritation.
More information from the ChemicalBook Xiaonan editor (2015-09-16).

Chemical Properties

white crystals or powder
InChI:InChI=1/C16H36N.N3/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;1-3-2/h5-16H2,1-4H3;/q+1;-1

1643-19-2 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Aldrich (462144)  Tetrabutylammoniumbromidesolution  50 wt. % in H2O 1643-19-2 462144-1L 1,512.81CNY Detail
Sigma-Aldrich (86857)  Tetrabutylammoniumbromide  for ion pair chromatography, ≥99.0% 1643-19-2 86857-50G-F 5,131.62CNY Detail
Sigma-Aldrich (86857)  Tetrabutylammoniumbromide  for ion pair chromatography, ≥99.0% 1643-19-2 86857-10G-F 1,297.53CNY Detail
Sigma-Aldrich (193119)  Tetrabutylammoniumbromide  ReagentPlus®, ≥99.0% 1643-19-2 193119-5KG 14,262.30CNY Detail
Sigma-Aldrich (193119)  Tetrabutylammoniumbromide  ReagentPlus®, ≥99.0% 1643-19-2 193119-500G 2,318.94CNY Detail
Sigma-Aldrich (193119)  Tetrabutylammoniumbromide  ReagentPlus®, ≥99.0% 1643-19-2 193119-100G 730.08CNY Detail
Sigma-Aldrich (193119)  Tetrabutylammoniumbromide  ReagentPlus®, ≥99.0% 1643-19-2 193119-25G 455.13CNY Detail
Vetec (V900173)  Tetrabutylammoniumbromide  Vetec reagent grade, 99% 1643-19-2 V900173-100G 90.09CNY Detail
Vetec (V900173)  Tetrabutylammoniumbromide  Vetec reagent grade, 99% 1643-19-2 V900173-25G 49.14CNY Detail
Sigma-Aldrich (426288)  Tetrabutylammoniumbromide  ACS reagent, ≥98.0% 1643-19-2 426288-100G 1,130.22CNY Detail
Sigma-Aldrich (426288)  Tetrabutylammoniumbromide  ACS reagent, ≥98.0% 1643-19-2 426288-25G 606.06CNY Detail
Alfa Aesar (A10249)  Tetra-n-butylammonium bromide, 98+%    1643-19-2 2500g 6311.0CNY Detail

1643-19-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name tetrabutylammonium bromide

1.2 Other means of identification

Product number -
Other names Tetrabutyl ammonium bromide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1643-19-2 SDS

1643-19-2Related news

Thermal conductivity measurements of semiclathrate hydrates and aqueous solutions of Tetrabutylammonium bromide (cas 1643-19-2) (TBAB) and tetrabutylammonium chloride (TBAC) by the transient hot-wire using parylene-coated probe08/09/2019

The thermal conductivity of semiclathrate hydrates and aqueous solutions of tetrabutylammonium bromide (TBAB) and tetrabutylammonium chloride (TBAC) was measured for the first time in the temperature range from 223 to 303 K under atmospheric pressure. A transient hot-wire apparatus using a paryl...detailed

Phase equilibrium of ionic semiclathrate hydrates formed with Tetrabutylammonium bromide (cas 1643-19-2) and tetrabutylammonium chloride08/07/2019

This paper reports the accurate phase equilibrium measurements of two ionic semiclathrate hydrates with tetrabutylammonium bromide (TBAB) and tetrabutylammonium chloride (TBAC). These ionic semiclathrate hydrates are suggested as cool energy storage media for air-conditioning system since their ...detailed

Influence of butynediol and Tetrabutylammonium bromide (cas 1643-19-2) on the morphology and structure of electrodeposited cobalt in the presence of saccharin08/06/2019

To develop cobalt coating for use in diamond tools, cobalt electrodeposition was conducted in Watts-type baths. The effects of tetrabutylammonium bromide and 2-butyne-1,4-diol on the surface morphology, crystallographic structure, surface roughness and microhardness of thick cobalt deposits were...detailed

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