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481483

Sigma-Aldrich

Sodium tetraethylborate

97%

Synonym(s):

Et4BNa

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₪676.00
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₪1,364.00

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1 G
₪676.00
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About This Item

Linear Formula:
(C2H5)4BNa
CAS Number:
15523-24-7
Molecular Weight:
150.05
MDL number:
MFCD00061547
UNSPSC Code:
12161600
PubChem Substance ID:
24871760
NACRES:
NA.22

₪676.00

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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[1] and alkyl tin compounds.[2]

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Product No.
Description
Pricing

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H250,H261

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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Certificates of Analysis (COA)

Lot/Batch Number
STBL4809
STBL4810
STBL3890
STBL3889
STBL3469

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Andrés Rodríguez-Cea et al.
Environmental science and pollution research international, 23(5), 4876-4885 (2015-11-08)
The degradation of butyltin compounds in surface water samples under different storage conditions has been studied. A triple spike solution, containing monobutyltin (MBT), dibutyltin (DBT) and tributyltin (TBT) labelled with a different tin isotope, was added to the sample to
Xiaonan Ji et al.
Environmental science and pollution research international, 26(17), 17707-17718 (2019-04-28)
Methylmercury (MeHg) in sediment is difficult to be determined due to its low concentration and binding compounds like sulfide and organic matter. Moreover, wet sediment samples have been suggested to behave differently from certified reference materials in MeHg analysis. Optimal
M Leermakers et al.
Analytical and bioanalytical chemistry, 381(6), 1272-1280 (2005-02-16)
Monobutyltin (MBuT), dibutyltin (DBuT), and tributyltin (TBuT) mixtures have been separated and quantified by gas chromatography with pulsed flame-photometric detection (GC-PFPD). The compounds were first derivatized with NaBEt4, then extracted with hexane and injected into the GC in splitless mode.
Stig Valdersnes et al.
Journal of AOAC International, 102(1), 278-285 (2018-12-31)
Organotin compounds are anthropogenic metal species with multiple uses as pesticides, preservatives, antifouling agents, biocides, and catalysts. Butyltins are the main organotin compounds found in biota, and the highest levels are found in marine foodstuffs. In this paper, we present
Andrea Santa-Rios et al.
Analytical chemistry, 92(5), 3605-3612 (2020-02-15)
There is interest in measuring total mercury (THg) and methylmercury (MeHg) in dried blood spots (DBS) though more research is required to evaluate mercury (Hg) speciation in DBS and to validate the agreement between blood sources (venous vs capillary) and
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    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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