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481483

Sigma-Aldrich

Sodium tetraethylborate

97%

Synonym(s):

Et4BNa

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About This Item

Linear Formula:
(C2H5)4BNa
CAS Number:
Molecular Weight:
150.05
MDL number:
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

97%

reaction suitability

core: boron
reagent type: catalyst

mp

140-142 °C (lit.)

SMILES string

[Na+].CC[B-](CC)(CC)CC

InChI

1S/C8H20B.Na/c1-5-9(6-2,7-3)8-4;/h5-8H2,1-4H3;/q-1;+1

InChI key

SZSBMTRYJRHYNI-UHFFFAOYSA-N

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General description

Sodium tetraethylborate (NaBEt4) is an air and moisture-sensitive pyrophoric organoboron compound. It is very reactive in the presence of certain organometallic species and is used as an ethyl transfer reagent.

Application

Sodium tetraethylborate can be used as a derivatizing agent in the GC-MS analyses of fenbutatin oxide and alkyl tin compounds.

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Pictograms

Flame

Signal Word

Danger

Hazard Statements

Hazard Classifications

Pyr. Sol. 1 - Water-react 2

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Jeffrey D Jeremiason et al.
Environmental science. Processes & impacts, 17(11), 1892-1903 (2015-10-01)
This study examined the kinetics of photoreduction of Hg(ii) and photodemethylation of methylmercury (MeHg(+)) attached to, or in the presence of, dissolved organic matter (DOM). Both Hg(ii) and MeHg(+) are principally bound to reduced sulfur groups associated with DOM in
Caitlyn Donadt et al.
Chemosphere, 262, 128059-128059 (2020-11-14)
Bioaccumulation of mercury in freshwater fish is a complex process driven by environmental and biological factors. In this study, we assessed mercury in fish from four tributaries to the Red Deer River, Alberta, Canada, which are characterized by high surface
Wenbin Cui et al.
Journal of agricultural and food chemistry, 65(44), 9569-9578 (2017-10-27)
Recent reports of elevated levels of methylmercury (MeHg) in rice revealed the possible occurrence of MeHg in infant rice cereals, leading to potential MeHg exposure through cereal consumption. Total mercury (THg) and MeHg levels in 119 infant cereal samples commonly
A Sabah et al.
Chemosphere, 144, 2497-2506 (2015-12-02)
The aim of this study was to investigate the fate and behaviour of butyltin pollutants, including monobutyltin (MBT), dibutylin (DBT), and tributyltin (TBT), in waste stabilisation ponds (WSP). The study was conducted as part of a baseline survey and included
Joseph S Denkenberger et al.
Ecotoxicology (London, England), 29(10), 1614-1626 (2020-01-12)
Mercury (Hg) concentrations and speciation were measured in nine tributaries to Lake Ontario as part of two independent field-sampling programs. Among the study tributaries, mean total Hg (THg) concentrations ranged from 0.9 to 2.6 ng/L; mean dissolved Hg (THgD) ranged from

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