Trimethyl borate _CAS:121-43-7

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Trimethyl borate _CAS:121-43-7

Identification
Name		Trimethyl borate
Synonyms		Boric acid trimethyl ester Boron methoxide Methyl borate BORON TRIMETHOXIDE TRIMETHOXYBORANE TRIMETHYL BORATE-11B METHYL BORATE-11B trimethyl boronate

Molecular Structure

Molecular Formula		C₃H₉BO₃
Molecular Weight		103.91
CAS Registry Number		121-43-7
EINECS		204-468-9
Properties
Density		0.932
Boiling point		68-69 ºC
Melting point		-34 ºC
Refractive index		1.3562-1.3582
Flash point		-8 ºC
Water solubility		reacts
Safety Data
Hazard Symbols		F;Xn
Risk Codes		R11;R21
Safety Description		S16;S2;S23;S25
Transport Information		UN 2416
Toxicity		LD50 orally in rats: 6.14 ml/kg (Smyth)

Trimethyl borate Chemical properties:

Moisture-sensitive liquid, fumes in the air. The melting point is -29.3°C, the boiling point is 68-69°C, and it forms an azeotropic mixture with methanol. The azeotrope point is 55°C, the relative density (20/4) is 0.920, and the refractive index (nD25) is 1.3543 (1.3548). Very easy to burn, flash point -1℃. Miscible with ether, methanol, tetrahydrofuran, isopropylamine and hexane. It is stable in anhydrous state and decomposes into methanol and boric acid when it meets water.

Trimethyl borate uses:

1. Intermediate of potassium (sodium) borohydride. Vulcanizing agent, wood preservative, catalyst, gelling agent, heat stabilizer, hydrogen flame extinguishing agent, also used in cotton flame retardant treatment and preparation of activated silica, and as a reagent for gas chromatography analysis of carbohydrate derivatives.

2. Used as a doping source for semiconductors, and also for the preparation of high-purity boron.

3. This product is used as a solvent for paraffin, resin, and petroleum, as a catalyst for ketones. It is also used as a solvent, dehydrogenation agent, insecticide, and organic synthesis and semiconductor boron diffusor for electronic industry and other purposes.

4. Analyze derivative reagents and solvents by gas chromatography.

5. Catalyst for the manufacture of ketones. Semiconductor boron diffusion source.

Trimethyl borate production method:

It can be synthesized by a variety of methods, such as from pyridine-boron trifluoride complex, or from methanol, boron fluoride; methanol, boric acid; methyl orthosilicate, boron halide, etc.

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Trimethyl borate (CAS number 121-43-7) is a versatile chemical compound used in various applications such as organic synthesis, in the production of boron-containing polymers, and as a reagent in the manufacturing of pharmaceuticals and agrochemicals.

As a colorless, flammable liquid, Trimethyl borate is easily soluble in organic solvents such as ethanol, ether, and benzene. It has a sweet odor similar to that of diethyl ether, making it easy to identify.

In organic synthesis, Trimethyl borate serves as a methylating agent, where it introduces methyl groups into a variety of organic compounds. For example, it is used in the synthesis of pharmaceuticals such as anti-inflammatory drugs and antibiotics. In the production of boron-containing polymers, Trimethyl borate acts as a crosslinking agent, which helps to create a more robust polymer structure.

Trimethyl borate is also widely used as a reagent in the manufacturing of agrochemicals, such as pesticides and herbicides. Its unique chemical properties allow it to react with other chemicals to form more potent and effective agrochemicals.

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In summary, Trimethyl borate is a highly versatile chemical compound that is widely used in organic synthesis, the production of boron-containing polymers, and as a reagent in the manufacturing of pharmaceuticals and agrochemicals. At UIV Chem, we pride ourselves on offering high-quality Trimethyl borate products to meet the diverse needs of our customers.

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