CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Chlorine trifluoride appears as a colorless gas or green liquid with a pungent odor. Boils at 53 °F. It reacts with water to form chlorine and hydrofluoric acid with release of heat. Contact with organic materials may result in spontaneous ignition. It is corrosive to metals and tissue. Prolonged exposure to low concentrations or short term exposure to high concentrations may result in adverse health effects. Under prolonged exposure to fire or intense heat the container may violently rupture and rocket. |
|---|---|
| Color/Form | COLORLESS GAS; LIQUID IS YELLOW-GREEN IN COLOR; SOLID IS WHITE |
| Odor | SOMEWHAT SWEET, SUFFOCATING ODOR |
| Boiling Point | 53 °F at 760 mmHg (USCG, 1999) |
| Melting Point | -105 °F (USCG, 1999) |
| Solubility | Reacts with water (NIOSH, 2023) |
| Density | 1.85 at 51.8 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Density | 3.21 (NIOSH, 2023) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 1.4 atm (NIOSH, 2023) |
| Stability/Shelf Life | .../Unstable/ in moist air... |
| Decomposition | In the vapor phase, chlorine trifluoride decomposes into a variety of substances, Cl2, ClF, ClOF, CLO2F, ClO2, & HF, depending upon the availability of water; of these chlorine, hydrogen fluoride & chlorine dioxide are probably of greatest toxicologic significance. |
| Viscosity | 0.448 mPa-s @ 290 deg K (liquid) |
| Corrosivity | Corrosive; Attacks quartz if traces of moisture are present |
| Heat of Vaporization | 27.50 kJ/mol |
| Surface Tension | 26.6 mN/m (=dyn/cm) @ 273 deg K |
| Ionization Potential | 13.00 eV |
| Other Experimental Properties | Heat of fusion = 7.60 kJ/mol |
| Chemical Classes | Toxic Gases & Vapors -> Oxidizers |
COMPUTED DESCRIPTORS
| Molecular Weight | 92.45 g/mol |
|---|---|
| XLogP3 | 2.5 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 0 |
| Exact Mass | 91.9640622 g/mol |
| Monoisotopic Mass | 91.9640622 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 4 |
| Formal Charge | 0 |
| Complexity | 8 |
| 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 |
PRODUCT INTRODUCTION
description
Chlorine trifluoride appears as a colorless gas or green liquid with a pungent odor. Boils at 53 °F. It reacts with water to form chlorine and hydrofluoric acid with release of heat. Contact with organic materials may result in spontaneous ignition. It is corrosive to metals and tissue. Prolonged exposure to low concentrations or short term exposure to high concentrations may result in adverse health effects. Under prolonged exposure to fire or intense heat the container may violently rupture and rocket.