PHOSPHORUS PENTAFLUORIDE PF5
General Characteristics
Phosphorus Pentafluoride is a highly toxic, colourless, nonflammable, strongly fuming gas with an irritating odor. It reacts with water to form hydrogen fluoride and phosphoric acid. It is shipped as a liquefied gas in size 7X cylinder.
Physical Information
Molecular Weight
125.966
Flammability Limits in air
Nonflammable
Specific Gravity,
Gas @ 70&degF(21.1&degC),
1 atm(Air=1)
4.46
Density,
Gas @ 70&degF
(21.1&degC), 1 atm
0.322lb/ft^3 (5.18kg/m^3)
Specific Volume,
Gas @ 70&degF
(21.1&degC), 1 atm
3.10ft^3/lb (0.193m^3/kg)
Boiling Point @ 1 atm
-120.1&degF (-84.5&degC)
Melting Point @ 75.1 psia
(518 kPa)
-136.8&degF (-938&degC)
Critical Temperature
66.1&degF (19&degC)
Toxicity
TLV-TWA
2.5 mg/m^3