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22975 Trimethyl borate, 99.9995+% (metals basis)

CAS Number
121-43-7
Synonyms

Stock No. Size Price ($) Quantity Availability
22975-18 50g 56.00
22975-30 250g 207.00
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Trimethyl borate, 99.9995+% (metals basis)

MDL
MFCD00008346
EINECS
204-468-9

Chemical Properties

Formula
C3H9BO3
Formula Weight
103.92
Form
Liquid
Melting point
-34°
Boiling Point
67-69°
Flash Point
-8°(17°F)
Density
0.915
Refractive Index
1.3610
Storage & Sensitivity
Moisture Sensitive. Store under Nitrogen. Ambient temperatures.
Solubility
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 the 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.

Literature References

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.

Liu, H. C.; Chen, H. B.; Lee, D. J.; Ku, R. J.; Tsau, F. Trimethyl Borate Regenerated from Spent Sodium Borohydride after Hydrogen Production. Ind. Eng. Chem. Res. 2010, 49 (20), 9864-9869.

GHS Hazard and Precautionary Statements

Hazard Statements: H225-H312

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

Precautionary Statements: P210-P280-P240-P241-P303+P361+P353-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. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,9712
Beilstein
1697939
Hazard Class
3
Packing Group
II
Harmonized Tariff Code
2920.90
TSCA
Yes
RTECS
ED5600000

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