13637-63-3

Basic information

• Product Name: CHLORINE PENTAFLUORIDE
• Synonyms: CHLORINE PENTAFLUORIDE;chlorinefluoride(clf5);ClF5;Chlorine pentafluoride 99%;Chlorinepentafluoride99%;KNSWNNXPAWSACI-UHFFFAOYSA-N
• CAS NO: 13637-63-3
• Molecular Formula: ClF₅
• Molecular Weight: 130.45
• EINECS: 237-123-6
• Mol File: 13637-63-3.mol
• Article Data: 5

Chemical Properties

• Melting Point: -103°C
• Boiling Point: -13,1°C
• Flash Point: °C
• Appearance: /colorless gas
• Density: 1.774 (estimate)
• CAS DataBase Reference: CHLORINE PENTAFLUORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: CHLORINE PENTAFLUORIDE(13637-63-3)
• EPA Substance Registry System: CHLORINE PENTAFLUORIDE(13637-63-3)

Safety Data

• Hazard Codes: O
• Safety Statements: 17-36/37/39
• RIDADR: 2548
• HazardClass: 2.3
• Hazardous Substances Data: 13637-63-3(Hazardous Substances Data)

Usage

Description

Chlorine pentafluoride, also known as ClF5, is a colorless gas with a sweet odor. It is toxic by inhalation and acts as an irritant to skin, eyes, and mucus membranes. Chlorine pentafluoride is heavier than air and can be corrosive. Under prolonged exposure to fire or intense heat, the containers may violently rupture or rocket. It is used as an oxidizer in propellants.
Chemical Properties:
Colorless gas
Critical temperature: 142.6°C
Enthalpy of vaporization: 22.21 kJ/mol
Specific conductivity: 1.25×10?? ohm·cm?1 [KIR78]

Uses

Chlorine pentafluoride does not have any significant commercial application. However, it is used as a fluorinating and oxidizing agent in various industrial processes.
Used in Chemical Industry:
Chlorine pentafluoride is used as a fluorinating agent for the production of certain chemicals, taking advantage of its ability to introduce fluorine atoms into compounds.
Used in Propellant Industry:
Chlorine pentafluoride is used as an oxidizing agent in the production of propellants, where its ability to support combustion and enhance the performance of rocket fuels is utilized.

Air & Water Reactions

Reacts with water or moisture in the air to produce corrosive hydrofluoric acid and toxic chloride gas. Interaction with ice at -100°C, or with water vapor above 0°C is extremely vigorous (Christe, K.O. Inorg. Chem. 1972 11, 1220).

Reactivity Profile

CHLORINE PENTAFLUORIDE is a strong oxidizing agent. Nonflammable, but likely to react vigorously on contact with combustible materials. Reacts violently with lithium, calcium. Emits highly toxic fluoride and chloride fumes when heated to decomposition. Extremely vigorous reaction with water, steam, even ice [Pilipovich D. et al., Inorg. Chem., 1967, 6, p. 1918]. Very vigorous reaction with anhydrous nitric acid even at -100° C [Christie, K. O., Inorg. Chem. 1992, 11, p. 1220].

Health Hazard

TOXIC; may be fatal if inhaled or absorbed through skin. Fire will produce irritating, corrosive and/or toxic gases. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Runoff from fire control may cause pollution.

Health Hazard

Chlorine pentafluoride is a highly toxic gas.It is a severe irritant to the eyes, skin,and mucous membranes. Exposure can causelacrimation, corneal damage, skin burn, andlung damage. Other symptoms are nausea,vomiting, and dyspnea. The liquid is highlycorrosive to skin, causing painful burns.LC50 value, inhalation (rats): 122 ppm/h.

Fire Hazard

Substance does not burn but will support combustion. Vapors from liquefied gas are initially heavier than air and spread along ground. These are strong oxidizers and will react vigorously or explosively with many materials including fuels. May ignite combustibles (wood, paper, oil, clothing, etc.). Some will react violently with air, moist air and/or water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.

Safety Profile

Poison by inhalation. A corrosive material. Vigorous reaction in contact with water or anhydrous nitric acid. Violent reaction on contact with metals. When heated to decomposition it emits very toxic fumes of Cland F-. See also CHLORINE, FLUORINE, FLUORIDES, and CHLORINE TRIFLUORIDE.

InChI:InChI=1/ClF5/c2-1(3,4,5)6

Upstream product

• 85662-38-0 ClF₆⁽¹⁺⁾*BF₄^(1-)=ClF₆BF₄ 
• 86527-33-5 ClF₆⁽¹⁺⁾*AsF₆^(1-)=(ClF₆)(AsF₆) 
• 18909-69-8 caesium tetrafluoroborate 
• 13773-81-4 krypton difluoride 
• 7790-91-2 chlorine trifluoride 
• 7782-41-4 fluorine 
• 13400-13-0 cesium fluoride 
• 13693-05-5 platinum hexafluoride 
• 19195-69-8 K⁽¹⁺⁾*ClF₄^(1-)=KClF₄ 
• 7782-50-5 chlorine 

Downstream Products

• 86527-33-5 ClF₆⁽¹⁺⁾*AsF₆^(1-)=(ClF₆)(AsF₆) 
• 41646-46-2 ClF₄⁽¹⁺⁾*AsF₆^(1-)=ClF₄AsF₆ 
• 18424-16-3 cesium hexafluoroarsenate 
• 7783-81-5 uranium hexafluoride 
• 13637-83-7 chloryl fluoride 
• 7664-39-3 hydrogen fluoride 
• 7790-91-2 chlorine trifluoride 
• 7782-41-4 fluorine 
• 7790-89-8 chlorine monofluoride 
• 7782-50-5 chlorine 
• 13637-83-7 FClO₂ 
• 10022-50-1 nitrylfluoride 
• 7789-26-6 fluorine nitrate 
• 10049-04-4 chlorine dioxide 

Related news

On the interaction of CHLORINE PENTAFLUORIDE (cas 13637-63-3) with water09/10/2019

The interaction of ClF5 with water in anhydrous hydrogen fluoride solutions was investigated by means of Raman spectroscopy. The reaction between ClF5 and H2O yields only one product (ClO2F) regardless of the temperature of the process, quantity and concentration of chemicals. ClOF3 also did not...detailed

Low temperature synthesis of CHLORINE PENTAFLUORIDE (cas 13637-63-3) using dioxygen difluoride09/06/2019

Chlorine pentafluoride has been prepared successfully in high purity by the fluorination of ClF3 at −78°C with dioxygen difluoride. The yield of ClF5 by this method is quantitative. The procedure illustrates the general utility of O2F2 in high valent fluoride synthesis.detailed

Relevant articles and documents

Synthesis and properties of ClF6BF4

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Equilibrium studies of chlorine pentafluoride

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The chemistry of platinum hexafluoride. II. Reactions with chlorine trifluoride, bromine pentafluoride, and tetrafluorohydrazine

Platinum hexafluoride reacts with chlorine trifluoride to give chlorine pentafluoride and the solid ClF3PtF5. The infrared spectrum indicates that ClF3PtF5 exists in the ionic form ClF2+PtF6-. Platinum hexafluoride reacts with bromine pentafluoride to give fluorine and a black viscous liquid, but no higher bromine fluorides are formed. Tetrafluorohydrazine and platinum hexafluoride react to give nitrogen trifluoride and PtF4-5.