Name | Boron trifluoride methanol complex |
Synonyms | trifluoro-methoxy-boron Boron trifluoride methanol complex Boron trifluoride-methanol in methanol |
CAS | 2802-68-8 |
EINECS | 220-543-9 |
Molecular Formula | CH4BF3O |
Molar Mass | 99.8480696 |
Density | 1,222 g/cm3 |
Melting Point | -20 °C |
Boling Point | 58-60°C 4mm |
Flash Point | 68°C |
Water Solubility | HYDROLYSIS |
Vapor Presure | 11.6hPa at 20℃ |
Appearance | clear liquid |
Color | Colorless to Light orange to Yellow |
Exposure Limit | ACGIH: TWA 2.5 mg/m3; Ceiling 1 ppmOSHA: Ceiling 1 ppm(3 mg/m3)NIOSH: IDLH 25 ppm; Ceiling 1 ppm(3 mg/m3) |
Merck | 14,1349 |
BRN | 3693581 |
Storage Condition | Store below +30°C. |
Sensitive | Moisture Sensitive |
Refractive Index | 1.34 |
Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R34 - Causes burns R48/23 - R20/22 - Harmful by inhalation and if swallowed. R39/23/24/25 - R35 - Causes severe burns R26 - Very Toxic by inhalation R24/25 - R11 - Highly Flammable R14 - Reacts violently with water |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S23 - Do not breathe vapour. S28 - After contact with skin, wash immediately with plenty of soap-suds. S16 - Keep away from sources of ignition. |
UN IDs | 2924 |
WGK Germany | 1 |
TSCA | Yes |
HS Code | 29420000 |
Hazard Class | 8 |
Packing Group | II |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | boron trifluoride methyl alcohol complex is an adduct formed by boron trifluoride and methanol, which is often made into boron trifluoride methanol solution. Boron trifluoride has a colorless gas that is asphyxiating and stimulates the odor, and produces white smoke in the atmosphere. Boron trifluoride dissolves in cold water and concentrated sulfuric acid, and reacts with water to form monohydrate or dihydrate. Boron trifluoride is one of the most powerful Lewis acids and can be combined with hydrogen fluoride, ammonia, ethers, alcohols, amines, phosphines and the like to form adducts. |
trait | colorless to light orange to yellow transparent liquid |
Use | boron trifluoride-methanol complexes are used as reagents in organic chemistry because Lewis acids are widely used reagents for the preparation of methyl carboxylates. It is known to be a versatile building block for several other boron compounds. TCI America offers ungraded products that are generally suitable for general industrial use or research purposes, but are generally not suitable for human consumption or therapeutic use. The boromethyl trifluoride complex serves as an esterification reagent for acids and also for the selective cleavage of triacyl ethers. The boron trifluoride-methanol complex solution can be used for deprotection of The acetylated amine of the cyanine dye to form a product with free amino groups. It can be used to convert the sulfur-containing phosphoramidate to the corresponding methyl phosphate. |
storage | temperature: 0-10°C Storage in inert gas WHAT TO AVOID: air, moisture (decomposition), heating |