Boron fluoride etherate
Boron trifluoride diethyl etherate
CAS: 109-63-7
Molecular Formula: C4H10BF3O
Boron fluoride etherate - Names and Identifiers
| Name | Boron trifluoride diethyl etherate |
| Synonyms | Boronfluoride3 bf3-ethercomplex Boron fluoride etherate Boron trifluoride etherate Boron fluoride monoetherate Boron trifluoride ethyl ether Boron fluoride diethyl etherate diethyl ether--boron trifluoride Boron trifluoride diethyl etherate Boron Trifluoride Ethyl Ether Complex Boron(III) fluoride ethylether complex Boron trifluoride diethyl ether complex 1'-oxybis[ethane]]-trifluoro[(beta-4)-boro 1'-oxybis[ethane]]-trifluoro[(beta-4)-boro |
| CAS | 109-63-7 |
| EINECS | 203-689-8 |
| InChI | InChI:1S/C4H10BF3O/c1-3-9(4-2)5(6,7)8/h3-4H2,1-2H3 |
| InChIKey | MZTVMRUDEFSYGQ-UHFFFAOYSA-N |
Boron fluoride etherate - Physico-chemical Properties
| Molecular Formula | C4H10BF3O |
| Molar Mass | 141.93 |
| Density | 1.15g/mL(lit.) |
| Melting Point | −58°C(lit.) |
| Boling Point | 126-129°C(lit.) |
| Flash Point | 118°F |
| Water Solubility | Reacts |
| Solubility | Miscible with ether and alcohol. |
| Vapor Presure | 4.2 mm Hg ( 20 °C) |
| Vapor Density | 4.9 (vs air) |
| Appearance | liquid |
| Specific Gravity | 1.126 (20/4℃) |
| Color | brown |
| Exposure Limit | ACGIH: TWA 0.1 ppm; Ceiling 0.7 ppm |
| Merck | 14,1350 |
| BRN | 3909607 |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Highly flammable. May form explosive peroxides in contact with air or oxygen. Reacts exothermically with water to form extremely flammable diethyl ether and toxic, corrosive boron trifluoride |
| Sensitive | 7: reacts slowly with moisture/water |
| Explosive Limit | 5.1-18.2%(V) |
| Refractive Index | n20/D 1.344(lit.) |
| Physical and Chemical Properties | Colorless fuming liquid. |
| Use | It can be used as a common analytical reagent, and can also be used as a catalyst for alkylation and condensation reactions in organic synthesis. |
Boron fluoride etherate - Risk and Safety
| Risk Codes | R10 - Flammable R14 - Reacts violently with water R20/22 - Harmful by inhalation and if swallowed. R35 - Causes severe burns R48/23 - R34 - Causes burns R14/15 - R23 - Toxic by inhalation R22 - Harmful if swallowed |
| Safety Description | S16 - Keep away from sources of ignition. S23 - Do not breathe vapour. 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.) S8 - Keep container dry. S28A - S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) |
| UN IDs | UN 2604 8/PG 1 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10 |
| TSCA | Yes |
| HS Code | 29319090 |
| Hazard Class | 8 |
| Packing Group | I |
Boron fluoride etherate - Upstream Downstream Industry
Boron fluoride etherate - Nature
Open Data Verified Data
Colorless fuming liquid. Immediately hydrolyzed in the presence of moisture in the air. When decomposed, highly toxic fluoride smoke is generated. Highly toxic.
Last Update：2024-01-02 23:10:35
Boron fluoride etherate - Preparation Method
Open Data Verified Data
sulfuric acid, fluorescent powder (calcium fluoride), boric acid co-heat to produce boron trifluoride gas, the latter and ether synthesis of boron trifluoride ether crude products, and then refined to the finished product. Waste sulfuric acid in the production process can be used to produce fertilizer.
Last Update：2022-01-01 10:16:16
Boron fluoride etherate - Use
Open Data Verified Data
used as catalysts for Organic Synthesis (catalysts for acetylation, alkylation, polymerization, dehydration and condensation reactions) and Analytical reagents. It is the basic raw material for the manufacture of boron and hydrogen high energy fuel and the extraction of isotope boron, and can also be used as a curing agent for epoxy resin.
Last Update：2022-01-01 10:16:15
Boron fluoride etherate - Safety
Open Data Verified Data
-
Highly toxic. The hydrogen fluoride gas used in the production is 20 times more harmful to the human body than sulfur dioxide. Hydrogen fluoride mainly causes bone damage, easy to cause spontaneous fracture, so that the human body often due to calcium deficiency caused by convulsions, spasms, severe cases can cause Dyspnea, paralysis and death; Followed by damage to the skin, cause itching, dermatitis, eczema, etc. The maximum allowable concentration of hydrogen fluoride in air is 1 mg/m3. Production equipment should be sealed to prevent running, run, drop, leakage and other phenomena. Good ventilation should be maintained at the production site, and the operator should wear protective equipment.
- plastic barrels plus wooden boxes, or sealed stainless steel cans. Store in a cool, dry, dark place. According to the provisions of the storage and transportation of toxic chemicals.
Last Update：2022-01-01 10:16:17
Boron fluoride etherate - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | boron trifluoride is an important Lewis acid catalyst in organic synthesis, alkylation, isomerization, etc.) play an important role. It is inconvenient to use when the trifluoride is turned into a gaseous state. In order to adapt to the activity requirements of different reactions, according to the characteristics of trifluorination, it is often combined with oxygen-containing or nitrogen-containing compounds with polarity to convert them into more stable complexes. For example, boron trifluoride ether complex is a kind of complex which is widely used in China. In addition, boron trifluoride can form complexes with thioethers, alkanes, anisoles, phenols, amines and many of their derivatives. |
| Application | boron trifluoride diethyl ether complex, commonly used as cationic polymerization catalyst, it is also a catalyst for the manufacture of cis-Polybutadiene Rubber and polyoxymethylene, or a high-energy boron-hydrogen fuel and a basic raw material for the extraction of the isotope boron. It is often used as a catalyst for chemical synthesis, and is also the basic raw material for the manufacture of boron hydrogen high-energy dyes and the extraction of the isotope boron 10. used as catalysts for synthetic rubber, resin and paint used as catalysts for alkylation and condensation reactions in organic synthesis (such as Polybutadiene Rubber, polyoxymethylene, coumarone, synthetic resin, etc.), is also used as a basic raw material for the production of boron and hydrogen high energy fuel or the extraction of isotope boron, and is also used as an epoxy resin curing agent. used as catalysts and Analytical reagents for acetylation, alkylation, polymerization, dehydration and condensation reactions in organic synthesis. It is the basic raw material for the manufacture of boron and hydrogen high energy fuel and the extraction of isotope boron, and can also be used as a curing agent for epoxy resin. used as catalysts for Organic Synthesis (catalysts for acetylation, alkylation, polymerization, dehydration and condensation reactions) and Analytical reagents. used as a common analytical reagent, can also be used as a catalyst for alkylation and condensation reactions in organic synthesis |
| synthesis method | fluorite boronic anhydride method, the chemical reaction formula is: the process is to mix the crushed boric acid and fluorite powder uniformly, boron trifluoride gas can be generated by heating with concentrated sulfuric acid. This is the earliest method of industrial maturity, and its cost is lower than the fluoroborate method. The boron trifluoride gas generated in this process contains more impurities, and the generated gas needs to be refined by sodium fluoride particles to remove hydrogen fluoride. In this method, the yield of concentrated sulfuric acid is low (65%), and when the mixture of fluorite concentrate and calcium borate is decomposed by fuming sulfuric acid, the temperature is 150 -180 ℃ and the excess of sulfuric acid is 50%, the yield of boron trifluoride can be greatly improved, so this process is our preferred production method. |
| toxicity | see boron trifluoride. |
| production method | boron trifluoride gas generated by co-heating of sulfuric acid, calcium fluoride (fluorite powder) and boric acid is reacted with diethyl ether, the obtained boron trifluoride-ether crude product was refined to a finished product. Raw material consumption quota: boric acid (≥ 98%) 560kg/t, calcium fluoride (≥ 90%)1150kg/t, fuming sulfuric acid (104.5%)4100kg/t, ether (≥ 99%)725kg/t. The boric acid is heated and reacted with fuming sulfuric acid and fluorite powder by absorption method to generate boron trifluoride gas, which is then absorbed with diethyl ether and subjected to vacuum distillation to obtain a finished product of diethyl trifluoride diethyl ether complex. 3H2SO4+2H33BO3+3CaF2 → 2BF3+3CaSO4+6H2OBF3 +(C2H5)2O →(C2H5)2O · BF3 |
| category | corrosive article |
| explosive hazard characteristics | ethers can form peroxides and react with lithium tetraaluminate to be explosive; oxidant |
| flammability hazard characteristics | flammable; Reaction with water or water vapor to produce toxic, corrosive, combustible gas |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Waterproof; Not stored for a long time |
| extinguishing agent | dry powder, carbon dioxide |
| autoignition temperature | 185°C DIN 51794 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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