| General Characteristics |
Boron Trifluoride is a colorless, corrosive, nonflammable toxic high pressure gas with a pungent, suffocating odor. It forms dense fumes in humid air. It is irritating to the mucous membranes. It is soluble in water where it decomposes to form fluoroboric acids. It hydrolyses in moist air. Boron Trifluoride is shipped as a high pressure compressed gas. |
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| Physical Properties |
| Molecular Weight 67.81 |
Flammability Limits in air Nonflammable |
Specific Gravity,
Gas @ 70°F(21.1°C), 1 atm(Air=1) |
2.37 |
Density,
Gas @ 70°F(21.1°C), 1 atm |
0.179lbs/ft^3 (2.87g/l) |
Specific Volume,
Gas @ 70°F(21.1°C), 1 atm |
5.5 ft^3/lb (343.6ml/g) |
| Boiling Point @ 1 atm |
-147.8°F (-99.8°C) |
| Melting Point @ 1 atm |
-198.4°F (-128.0°C) |
| Critical Temperature |
-10.0°F (-12.3°C) |
| Toxicity |
| PEL / TLV |
1 ppm |
| LC50 |
387 ppm |
| IDLH |
100ppm |
