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443999

Sigma-Aldrich

Trimethylborat

purified by redistillation, ≥99.5%

Synonym(e):

Borsäure-trimethylester, Methylborat

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About This Item

Lineare Formel:
B(OCH3)3
CAS-Nummer:
121-43-7
Molekulargewicht:
103.91
Beilstein:
1697939
EG-Nummer:
204-468-9
MDL-Nummer:
MFCD00008346
UNSPSC-Code:
12352103
PubChem Substanz-ID:
24868093

Dampfdichte

3.59 (vs air)

Qualitätsniveau

200

Assay

≥99.5%

Form

liquid

Aufgereinigt durch

redistillation

Brechungsindex

n20/D 1.346 (lit.)

bp

68-69 °C (lit.)

mp (Schmelzpunkt)

−34 °C (lit.)

Dichte

0.932 g/mL at 20 °C (lit.)

SMILES String

COB(OC)OC

InChI

1S/C3H9BO3/c1-5-4(6-2)7-3/h1-3H3

InChIKey

WRECIMRULFAWHA-UHFFFAOYSA-N

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Verwandte Kategorien

Anwendung

Trimethyl borate can be used as:
  • A reagent in the preparation of various trialkylamine−boranes from corresponding trialkylamines using lithium hydride/aluminum chloride catalyst.
  • A source of boron in the synthesis of boron nitride (BN) nanotubes by thermal-heating chemical vapor deposition (TH-CVD) method.
  • An electrolytic additive for electrochemical applications.
  • A reagent along with lithium di-tert-butyl(2,2,6,6-tetramethylpiperidino)zincate (TMP-zincate) for the synthesis of 1-tert-butyl-3,4-dihydroisoquinoline from isoquinoline via ortho metalation reaction.

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Repr. 1B - STOT SE 1

Zielorgane

Eyes

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 1

Flammpunkt (°F)

12.2 °F - (own results)

Flammpunkt (°C)

-11 °C - (own results)

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

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Sigma-Aldrich

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Borsäureanhydrid

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Sigma-Aldrich

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Sigma-Aldrich

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Sigma-Aldrich

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Thermal-heating CVD synthesis of BN nanotubes from trimethyl borate and nitrogen gas.
Lin FH, et al.
Materials Chemistry and Physics, 107(1), 115-121 (2008)
A Colorado et al.
Journal of mass spectrometry : JMS, 31(4), 403-410 (1996-04-01)
Barbiturates are a class of drugs that are utilized as anesthetics and sleeping agents and are used for the treatment of anxiety, epilepsy and other psychiatric disorders. Because of their pyrimidine structures, barbiturates are highly basic compounds. The evaluation of
Steven C Habicht et al.
Analytical chemistry, 80(9), 3416-3421 (2008-03-28)
A mass spectrometric method has been developed for the identification of the carboxylic acid functional group in analytes evaporated and ionized by electrospray ionization (ESI). This method is based on gas-phase ion-molecule reactions of ammoniated ([M + NH4]+) and sodiated
Scott Gronert et al.
Journal of the American Society for Mass Spectrometry, 13(9), 1088-1098 (2002-09-27)
Using a quadrupole ion trap mass spectrometer, trimethyl borate was allowed to react with dihydrogen phosphate, deprotonated O-phosphoserine, and a set of hydrogen bonded complexes involving dihydrogen phosphate and neutral acids (phosphoric acid, acetic acid, serine, and O-phosphoserine). The reactions
Jayalakshmi Somuramasami et al.
Journal of the American Society for Mass Spectrometry, 22(6), 1040-1051 (2011-09-29)
Several lignin model compounds were examined to test whether gas-phase ion-molecule reactions of trimethylborate (TMB) in a FTICR can be used to differentiate the ortho-, meta-, and para-isomers of protonated aromatic compounds, such as those formed during degradation of lignin.
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