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

B20215 Trimethyl borate, 99%

Numéro CAS
121-43-7
Synonymes
Boric acid trimethyl ester
Methyl borate

Dimensions Prix ($) Quantité Disponibilité
250ml 22,80
1000ml 72,90
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Trimethyl borate, 99%

MDL
MFCD00008346
EINECS
204-468-9

Propriétés chimiques

Formule
C3H9BO3
Poids formulaire
103.92
Point de fusion
-34°
Point d'ébullition
67-69°
Point d'éclair
-8°(17°F)
Densité
0.915
Indice de réfraction
1.3610
Sensibilité
Moisture Sensitive
Solubilité
Miscible with tetrahydrofuran, ether, isoporpylamine, hexane and methanol.

Applications

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.

Notes

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.

Références bibliographiques

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.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H225-H312

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

Mentions de prudence: 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.

Autres références

Merck
14,9712
Beilstein
1697939
Classe de danger
3
Groupe d'emballage
II
Code tarifaire harmonisé
2920.90
TSCA
Yes
RTECS
ED5600000

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