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121-43-7 - Trimethyl borate, 99% - Boric acid trimethyl ester - Methyl borate - B20215 - Alfa Aesar

B20215 Trimethyl borate, 99%

Codice CAS
121-43-7
Sinonimi
Boric acid trimethyl ester
Methyl borate

Dimensioni Prezzo ($) Quantità Disponibilità
250ml 22,66
1000ml 65,61
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Trimethyl borate, 99%

MDL
MFCD00008346
EINECS
204-468-9

Proprietà chimiche

Formula
C3H9BO3
Peso formula
103.92
Punto di fusione
-34°
Punto di ebollizione
67-69°
Punto di infiammabilità
-8°(17°F)
Densità
0.915
Indice di rifrazione
1.3610
Sensibilità
Moisture Sensitive
Solubilità
Miscible with tetrahydrofuran, ether, isoporpylamine, hexane and methanol.

Applicazioni

Trimethyl borate is a useful reagent in organic synthesis. It is involved in the production of resins, waxes and paints and acts as a methylation agent. As a boron source, it is used to prepare flame retardants, anti-oxidants and corrosion inhibitors. It reacts with Grignard reagents followed by hydrolysis to prepare boronic acid. It is also used as a precursor of borate esters, which finds application in Suzuki coupling reaction. It is an intermediate in the preparation of sodium borohydride.

Note

Moisture sensitive. Keep container tightly closed in a dry and well-ventilated place. Incompatible with oxidizing agents. It decomposes slowly in the presence of moisture and rapidly in water.

Letteratura

For an example of the low temperature reaction with Grignard reagents to give boronic acids., see: Org. Synth. Coll., 4, 68 (1963).

Bao, Z.; Zhang, W.; Cui, X.; Xu, J. Design, Optimization and Control of Extractive Distillation for the Separation of Trimethyl Borate-Methanol. Ind. Eng. Chem. Res. 2014, 53 (38), 14802-14814.

Chang, C. C.; Lee, K. Y.; Lee, H. Y.; Su, Y. H.; Her, L. J. Trimethyl borate and triphenyl borate as electrolyte additives for LiFePO4 cathode with enhanced high temperature performance. J. Power Sources 2012, 217, 524-529.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H225-H312

Highly flammable liquid and vapour. Harmful in contact with skin.

Dichiarazioni precauzionali: P210-P280-P240-P241-P233-P303+P361+P353-P312-P363-P403+P235-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Wear protective gloves/protective clothing/eye protection/face protection. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting/ equipment. Keep container tightly closed. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. Call a POISON CENTER or doctor/physician if you feel unwell. Wash contaminated clothing before reuse. Store in a well-ventilated place. Keep cool. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,9712
Beilstein
1697939
Classe di rischio
3
Gruppo di imballaggio
II
Codice tariffe armonizzato
2920.90
TSCA
Yes
RTECS
ED5600000

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