CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Colorless liquid; [Merck Index] |
|---|---|
| Color/Form | Colorless liquid |
| Boiling Point | 95 °C |
| Melting Point | -93 °C |
| Flash Point | -33 °F (-36 dec C) (open cup) /table/ |
| Solubility | Soluble in alcohol, ether |
| Density | 0.70 g/cu cm at 23 °C |
| Vapor Pressure | 53.0 [mmHg] |
| Decomposition | When heated to decomposition or upon contact with air it emits toxic acrid smoke and irritating fumes. |
| Heat of Combustion | 20,000 BTU/LB |
| Refractive Index | Index of refraction: 1.3971 |
| Other Experimental Properties | Standard enthalpy of formation: -194.6 kJ/mol (liquid), -157.7 kJ/mol (gas); molar heat capacity: 241.2 J/mol K at 25 °C (liquid) |
| Chemical Classes | Metals -> Metalloid Compounds (Boron) |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H250:Pyrophoric liquids; Pyrorophoric solids H301:Acute toxicity,oral H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P231+P232:Handle under inert gas. Protect from moisture. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P370+P378:In case of fire: Use … for extinction. |
COMPUTED DESCRIPTORS
| Molecular Weight | 98.00 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 3 |
| Exact Mass | 98.1266806 g/mol |
| Monoisotopic Mass | 98.1266806 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| Complexity | 25.7 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |