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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 57.60
22975-30 250g 212.00
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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-H370

Highly flammable liquid and vapour. Harmful in contact with skin. Causes damage to organs.

Precautionary Statements: P210-P233-P240-P243-P260-P264b-P270-P280-P302+P352-P312-P314-P362-P372-P374-P380-P501c

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Keep container tightly closed. Ground/bond container and receiving equipment. Take precautionary measures against static discharge. Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. Call a POISON CENTER or doctor/physician if you feel unwell. Get medical advice/attention if you feel unwell. Take off contaminated clothing and wash before reuse. Explosion risk in case of fire. Fight fire with normal precautions from a reasonable distance. Evacuate area. Dispose of contents/ container to an approved waste disposal plant

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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