Trimethyl borate/CAS: 121-43-7
Short Description:
Product Name: Trimethyl borate
CAS: 121-43-7
Type: ZA-Y
MF:C3H9BO3
MW:103.91
STRUCTURE:
Description:
Trimethyl borate appears as a water-white liquid. Denser than water. Vapors heavier than air. Used as a solvent and fungicide for fruit.
Specification:
| Item | Specification |
| Melting point | -34 °C (lit.) |
| Boiling point | 68-69 °C (lit.) |
| Density | 0.932 g/mL at 20 °C (lit.) |
| Vapor density | 3.59 (vs air) |
| Vapor pressure | 147.9-148 hPa ( 20 °C) |
| Fp | 8 °F |
| Refractive index | n20/D 1.358(lit.) |
| Storage temp. | Store at <= 20°C. |
| Solubility | Miscible with tetrahydrofuran, ether, isoporpylamine, hexane and methanol. |
| Form | Liquid |
| Color | Colorless |
Usage
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, Trimethyl borate 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 used as neutron detector gas in the presence of a scintillation counter; as a promoter of diborane reactions.
Trimethyl borate reacts with a Grignard reagent or organolithium compounds to yield dimethyl boronates, which upon subsequent aqueous acid treatment afford corresponding boronic acids. The resultant boronic acids or esters are useful intermediates in various cross-coupling reactions such as Suzuki coupling and Chan-Lam coupling. It is also used in the preparation of sodium borohydride.
Packaging and Shipping
180KG/Drum or as customer requirements.
Belongs to common goods and can deliver by ocean and air
Keep and storage
Shelf life:24 month from date of manufacture in original unopened packaging stored in a cool dry place out of direct sunlight, water.
Store in a cool, dry, and well ventilated warehouse. Stay away from sources of fire and heat. The storage temperature should not exceed 30 ℃. Keep the container sealed. It should be stored separately from oxidants, acids, etc., and avoid mixing storage.
