Boron trichloride , 1.0MsolutioninMethylenechloride , 10294-34-5
CAS NO.：10294-34-5
Empirical Formula: BCl3
Molecular Weight: 117.17
MDL number: MFCD00011313
EINECS: 233-658-4
PRODUCT Properties
| Melting point: | −107 °C(lit.) |
| Boiling point: | 12.5 °C(lit.) |
| Density | 1.326 g/mL at 25 °C |
| vapor density | 4.05 (vs air) |
| vapor pressure | 29.72 psi ( 55 °C) |
| Flash point: | 84 °F |
| storage temp. | 2-8°C |
| solubility | Miscible with dichloromethane, ethanol, carbon tetrachloride, diethyl ether, dimethyl formamide, aromatic solvents, saturated and halogenated hydrocarbon. |
| form | Solution |
| color | White |
| Water Solubility | decomposes |
| Sensitive | Moisture Sensitive |
| Merck | 14,1348 |
| Exposure limits | ACGIH: TWA 50 ppm OSHA: TWA 25 ppm; STEL 125 ppm NIOSH: IDLH 2300 ppm |
| Stability: | Unstable. Incompatible with metals. Reacts violently with water. Reacts vigorously with aniline, phosphine, dinitrogen tetroxide. Fumes in moist air. |
| CAS DataBase Reference | 10294-34-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Borane, trichloro-(10294-34-5) |
| EPA Substance Registry System | Boron trichloride (10294-34-5) |
Description and Uses
Boron trichloride is a colorless, acid gas that fumes in the presence of moist air. It is packaged in steel cylinders as a liquid under its own vapor pressure of 19.1 psia (132 kPa, abs) at 70°F (21.1°C). It reacts with water or moist air to produce hydrochloric and boric acid.
Boron trichloride is a Lewis acid, forming stable addition compounds with such donors as ammonia and the amines and is used in the laboratory to promote reactions that liberate these donors. The compound is important industrially as a source of pure boron (reduction with hydrogen) for the electronics industry. It is also used for the preparation of boranes by reaction with metal hydrides.
Safety
| Symbol(GHS) |     GHS02,GHS05,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H225-H300-H311+H331-H314-H360FD-H370 |
| Precautionary statements | P201-P210-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| Hazard Codes | T+,T,N,F |
| Risk Statements | 14-26/28-36/37/38-40-67-65-62-51/53-48/20-34-11-50/53-26/27/28-63-39/23/24/25-24-21-10 |
| Safety Statements | 9-26-28-36/37/39-45-8-61-38-28A-16-1-60-33-23-7/9-62-36/37 |
| RIDADR | UN 3390 6.1/PG 1 |
| WGK Germany | 3 |
| RTECS | ED1925000 |
| F | 10-21 |
| Hazard Note | Very toxic |
| TSCA | Yes |
| DOT Classification | 2.3, Hazard Zone C (Gas poisonous by inhalation) |
| HazardClass | 2.3 |
| PackingGroup | II |
| HS Code | 28121049 |
| Hazardous Substances Data | 10294-34-5(Hazardous Substances Data) |
