Perchloryl fluoride

  • Chlorine oxyfluoride
Formula
ClO3F
Structure
Description
Colorless gas. Characteristic sweet odor.
Uses
In organic synthesis to introduce fluorine atoms into organic molecule, as oxidizing agent, as insulator for high voltage systems.

Registry Numbers and Inventories.
CAS
7616-94-6
EC (EINECS/ELINCS)
231-526-0
RTECS
SD1925000
RTECS class
Other
UN (DOT)
3083
Merck
12,7297
Beilstein/Gmelin
26039 (G)
Swiss Giftliste 1
G-2708
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
ClFO3
Formula mass
102.45
Melting point, °C
-147.8
Boiling point, °C
-47
Vapor pressure, mmHg
8944 (25 C)
Vapor density (air=1)
3.64
Critical temperature
95.2
Density
1.434 (liquid)g/cm3 (20 C)
Solubility in water
0.06 g / 100 ml
Dipole moment
1.63 D
Heat of fusion
2.8 kJ/mol
Heat of vaporization
19.3 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Stability
No data.

Fire.
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Fire potential
Substance does not burn but will support combustion.
Hazards
Vapors from liquefied gas are initially heavier than air and spread along ground. These are strong oxidizers and will react vigorously or explosivelywith many materials including fuels. May ignite combustibles (wood, paper, oil, clothing, etc.). Some will react violently with air, moist air and/or water. Containers may explode when heated. Ruptured cylinders may rocket.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
2
 
 
Reactivity
3
 

Health.
Exposure limit(s)
OSHA PEL: TWA 3 ppm (13.5 mg/m3) NIOSH REL: TWA 3 ppm (14 mg/m3) ST 6 ppm (28 mg/m3) NIOSH IDLH: 100 ppm
Poison_Class
2
Exposure effects
   Ingestion
Nausea and vomiting may occur.
   Inhalation
Dyspnea and tachypnea may occur.
   Skin
Central cyanosis unresponsive to oxygen therapy is classic.
   Eyes
Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.

First aid
 
   Ingestion
Emesis: ipecac-induced vomiting is not recommended because of the potential for cns depression and seizures. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents. Consider after ingestion of a potentially life-threatening amount of poison if it can be performed soon after ingestion (generally within 1 hour). Oxygen - administer oxygen to all cyanotic or symptomatic patients. Methemoglobinemia: administer 1 to 2 mg/kg of 1% methylene blue slowly iv in symptomatic patients. Additional doses may be required. Shock and cardiac arrest - treat routinely. Adjunctive therapy - exchange transfusions and hyperbaric oxygen may be useful in severe cases.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Effects may be delayed.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. In case of contact with liquefied gas, thaw frosted parts with lukewarm water. Effects may be delayed.
   Eyes
Immediately flush with running water for at least 20 minutes. Effects may be delayed.

Transport.
UN number
3083
Response guide
Hazard class
2.3
PRTC
T
Std. Transport #
4920356