Khoom

Tetraethylammonium Bromide

Khoom Taw qhia

Tetraethylammonium bromide Cov ntaub ntawv yooj yim

Khoom npe:	Tetraethylammonium bromide hmoov
Synonyms:	TETRAETHYLAMMONIUM BROMIDE; TEAB; TEA BROMIDE; Ammonium, tetraethyl-, bromide; Beparon; Bromethyl; Bromure de tetraethylammonium; tmd10
CAS:	71-91-0
MF:	C8H20 Nr
MW:	210.16
EINECS:	200-769-4
Khoom Categories:	Ammonium ntsev; Greener Alternatives: Catalysis; Ammonium Bromides (Quaternary); Quaternary Ammonium Compounds; Phase Transfer Catalysts; Ion-pair Reagents; quarternary ammonium ntsev; Pharmaceutical intermediates; surfactant; bc0001
Mol File:	71-91-0.mol

Tetraethylammonium bromide Cov Khoom Siv Tshuaj

Melting point	285 degree (lub kaum hli ntuj) (lit.)
ceev	1,397 g / cm²³
vapor ceev	5.3 (vs huab cua)
Refractive Index	1,442-1,444
cia temp.	Khaws hauv qab +30 degree .
solubility	acetonitrile: 0.1 g/mL sov, ntshiab, tsis muaj xim
daim ntawv	Ua kua
xim	Dawb rau cream
tsw	Tsis hnov tsw
PH Range	6.5 ntawm 100 g / l
PH	6.5 (100g / l, H2O, 20 degree)
Dej Solubility	2795 g/L (25 º C)
rhiab heev	Hygroscopic
Merck	14,9199
BRN	3563430
Kev ruaj ntseg:	ruaj khov. Incompatible nrog muaj zog oxidizing neeg sawv cev.
InChIKey	HWCKGOZZJDHMNC-UHFFFAOYSA-M
CAS DataBase Reference	71-91-0(CAS DataBase Reference)
NIST Chemistry Reference	Tetraethylammonium bromide ({0}})
EPA Tshuaj Registry System	Ethanaminium, N, N, N-triethyl-, bromide (71-91-0)

Cov ntaub ntawv kev nyab xeeb

Hazard Codes	Xis
Risk Statements	36/37/38
Cov lus hais txog kev nyab xeeb	26-36-37/39
WGK Germany	3
RTECS	BS5950000 IB
F	3
TSCA	Yog lawm
HS Code	29239000

MSDS Cov Ntaub Ntawv

Tus kws kho mob	Lus
Tetraethylammonium bromide hmoov	Lus Askiv
SigmaAldrich	Lus Askiv
ACROS	Lus Askiv
ALFA	Lus Askiv

Tetraethylammonium bromide Kev Siv Thiab Kev Sib Txuas

Chemical Properties	dawb mus rau lub teeb daj crystalline khoom
Siv	Tetraethylammonium Bromide, tuaj yeem siv los ua qhov chaw ntawm tetraethylammonium ions rau ntau yam kev tshawb fawb tshuaj. Nws kuj tseem muaj peev xwm los thaiv K + channel hauv ntau cov ntaub so ntswg.
Siv	Tetraethylammonium bromide (TEAB) catalyzes cov synthesis ntawm thioesters los ntawm oxidative coupling ntawm aldehydes los yog cawv nrog thiols los yog disulfides. Nws yog siv los ua catalyst, nrog rauo-iodoxybenzoic acid (IBX), nyob rau hauv oxidation ntawm sulfides rau sulfoxides thiab thawj carboxamides rau ib-carbon dehomologated nitriles. TEAB tseem tuaj yeem siv los ua cov qauv organic los ua ke zeolite beta.
Kev piav qhia dav dav	Kev siv cov ion-pairing reagents raws li cov theem mobile additives tso cai rau kev sib cais ntawm ionic thiab cov polar heev ntawm cov theem rov qab HPLC kab. Lub purity ntawm mobile theem additives yog qhov tseem ceeb tshaj plaws rau lawv daim ntawv thov ua tiav. Sigma-Aldrich muaj ntau yam zoo ntawm cov khoom siv kho kom haum rau anionic (quaternary ammonium thiab phosphonium ntsev) thiab kev txiav txim siab cationic (alkanesulfonates). Tag nrho cov theem mobile additives yog raug rau kev sim nruj nrog tshwj xeeb tshwj xeeb rau cov kev cai ntawm niaj hnub reversed theem HPLC:
Txoj Kev Purification	Recrystallise cov bromide los ntawm EtOH, CHCl3 los yog diethyl ether, los yog recrystallise nws los ntawm acetonitrile thiab qhuav nws tshaj P2O5 nyob rau hauv txo siab rau ob peb hnub. Nws kuj recrystallises los ntawm EtOH / diethyl ether (1: 2), EtOAc, dej los yog boiling MeOH / acetone (1: 3) los yog los ntawm kev ntxiv ib tug sib npaug ntim ntawm acetone thiab cia txias. Qhuav nws ntawm 100o hauv vacuo rau 12 hnub, thiab khaws cia tshaj P2O5. [Beilstein 4 IV 332.]

Tetraethylammonium bromide Kev Npaj Cov Khoom Siv Thiab Cov Khoom Raw

Cov khoom nyoos	Triethylamine-->Solvent
Cov khoom npaj	Tetraethylammonium tetrafluoroborate-->Tetraethylammonium hexafluorophosphate-->Methyl bromide-->tetraethylammonium hydridotetracarbonylferrate

Cim npe nrov: Tuam Tshoj tetraethylammonium bromide manufacturers, lwm tus neeg, Hoobkas

Tug: Benzyltriethylammonium Chloride

Tom ntej: Toluenesulfonamide

Koj Tseem Yuav Zoo Li

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