MShanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of Trimethyl Borate (CAS: 121-43-7) with high quality. We can provide COA, worldwide delivery, small and bulk quantities available. If you are interested in Trimethyl Borate, please send detailed information includes CAS number, product name, quantity to us. Please contact: alvin@ruifuchem.com
| Chemical Name | Trimethyl Borate |
| Synonyms | Boric Acid Trimethyl Ester; Methyl Borate; Trimethoxyborane; TMB |
| Stock Status | In Stock, Production Capacity 50 Tons per Month |
| CAS Number | 121-43-7 |
| CAT Number | RF-F14 |
| Molecular Formula | C3H9BO3 |
| Molecular Weight | 103.91 |
| Melting Point | -34℃(lit.) |
| Boiling Point | 68.0~69.0℃(lit.) |
| Flash Point | -8℃(17°F) |
| Solubility | Miscible with Tetrahydrofuran, Ether, Alcohol. Soluble in Benzene |
| Stability | Readily Flammable, Sensitive to Moisture |
| Hydrolytic Sensitivity | 7: Reacts Slowly With Moisture/Water |
| Hazard Codes | Xn,F,T |
| Risk Statements | 11-21-23/25-36/37/38-10-36-61-60 |
| Safety Statements | 16-27-36/37/39-45-25-23-2-26-53 |
| WGK Germany | 3 |
| TSCA | Yes |
| Hazard Class | 3 |
| Packing Group | II |
| HS Code | 2920900090 |
| Brand | Ruifu Chemical |
| Item | Specifications |
| Appearance | Colorless Transparent Liquid |
| Purity / Analysis Method | >99.5% (GC) |
| Melting Point | -34.0℃ |
| Density (20℃) | 0.931~0.937 |
| Refractive Index n20/D | 1.354~1.359 |
| Boric Acid | <0.50% |
| Water (K.F) | <0.50% |
| Heavy Metals (as Pb) | <50ppm |
| Iron (Fe) | <50ppm |
| Nickel (Ni) | <20ppm |
| Gallium (Ga) | <20ppm |
| ICP | Confirms Boron Components Confirmed |
| Total Impurities | <0.50% |
| Infrared Spectrum | Conforms to Structure |
| Test Standard | Enterprise Standard |
Package: Fluorinated Bottle, 25kg/Barrel, 200kg/Drum, or according to customer's requirement.
Storage Condition: Moisture sensitive. Store in sealed containers at cool, dry and well-ventilated place. Incompatible with oxidizing agents.
Trimethyl Borate (CAS: 121-43-7) is a member of the class of borate esters obtained by the formal condensation of three equivalents of methanol with boric acid, is a useful reagent in organic synthesis. It can be used as doping profile source of semiconductor. It can also be used in the production of high purity boron. Boron compounds, Lithium battery research reagents. It can also used as a flux. 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.
Air & Water Reactions: Highly flammable. Rapidly decomposes in water.
Fire Hazard: Highly flammable: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.