Chlorine trifluoride

92.44820

92.45

232-230-4

921841L3N0

0656

1749

COLORLESS GAS; LIQUID IS YELLOW-GREEN IN COLOR; SOLID IS WHITE|Colorless gas or a greenish-yellow liquid (below 53 degrees F) [Note: Shipped as a liquefied compressed gas].

2812901910

0

1.95010

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.

1,8 g/cm3

-76.34 °C

11.75 °C

violently hydrolyzed by H2O [MER06]

Chlorine trifluoride is stored and shippedin special steel cylinders. It is stored inmoisture-free, cool, and isolated areas sepa rated from other chemicals. The cylinders arekept upright, covered, and protected againstphysical damage.

1.4 atm

3.21

Nonflammable Gas Noncombustible Liquid, but contact with organic materials may result in SPONTANEOUS ignition.

SOMEWHAT SWEET, SUFFOCATING ODOR

Heat of fusion = 7.60 kJ/mol|Heat of formation = 164.5 kJ/mol @ 25 °C

A violent reaction occurs with water or ice generating acidic HF and chlorine, [Sidgwick, 1156(1950)]. The release of Chlorine Trifluoride to the atmosphere rapidly generates two toxic reaction products: HF and Chlorine Dioxide, [Lombardi, D.A. and M.D. Cheng 1996. "Modeling Accidental Releases of Chlorine Trifluoride to the Atmosphere," Paper No. 96-WP66B.02, presented at the 89th Annual Meeting of the Air and Waste Management Association, Nashville, Tennessee, June 23-26].

Oxidizing Agents, Strong

Strong Oxidizing Agent

CHLORINE TRIFLUORIDE is a low-boiling liquid (b.p. 12° C) which is irritating and toxic in the gaseous state. A highly reactive oxidant, it is spontaneously flammable and used as a rocket propellant. It is incompatible with fuels and nitro compounds. Interaction with water is violent and may be explosive, even with ice [Sidgwick, 1950, p. 1156]. It undergoes an immediate explosive reaction on contact with hydrocarbons or halocarbons even at -70° C [Brower, K. R., J. Fluorine Chem., 1986, 31, p. 333]. Solutions with carbon tetrachloride are capable of detonation, while solutions with nitroaryl compounds (TNT, hexanitrobiphenyl) or highly chlorinated compounds are extremely shock-sensitive. Violent, sometimes explosive reaction with hydrogen containing materials, e.g., acetic acid, ammonia, benzene, ether, coal gas, hydrogen, hydrogen sulfide, methane, or fluoroamino compounds. Ignition with fibrous materials (cotton, paper, wood). [Mellor, 1956, vol. 2, suppl. 1, p. 155]. Explosive gaseous products (chlorodifluoroamine) are formed with ammonium fluoride or ammonium hydrogen fluoride [Gardner, D. M. et al., Inorg., Chem., 1963, 2, p. 413]. Ignition occurs on contact with iodine, boron-containing materials (boron powder, tetraboron carbide, boron-aluminum), fibrous or finely divided refractory materials (asbestos, glass, wool, sand, tungsten carbide). Violent reactions occur with mineral acids (nitric acid, sulfuric acid), chromium trioxide, ruthenium metal, selenium tetrafluoride. [Bretherick, 5th ed., 1995, p. 1235]. Chlorine trifluoride is a hypergolic oxidizer and contact with a number of metals and their oxides (aluminum, antimony, arsenic, calcium, copper, iridium, iron, lithium, lead, magnesium, molybdenum, osmium, potassium, rhodium, sodium, selenium, silver, tellurium, tin, tungsten, zinc), nonmetals (phosphorus, silicon, sulfur), salts (mercury iodide, potassium iodide, silver, nitrate, potassium carbonate) will result in a violent reaction often followed by ignition [Mellor, 1956, vol. 2, suppl. 1, p. 155; Sidgwick, 1950, p. 1156].

13.00 eV

Nonflammable Gas Noncombustible Liquid, but contact with organic materials may result in SPONTANEOUS ignition.

The gas is heavier than air.

Corrosive; Attacks quartz if traces of moisture are present

27.50 kJ/mol

Critical temperature = 154.5 °C

2.3

1749

8-35

S17-S38

FO2800000

O

Fireproof. Separated from combustible substances, reducing agents and food and feedstuffs. Cool. Dry.

Stability Strong oxidizer. Incompatible with, and may ignite or react violently with, combustible materials, including most organic compounds. Decomposes in water. Incompatible with moisture.

P220, P244, P260, P264, P270, P271, P280, P284, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P310, P314, P320, P321, P363, P370+P376, P403, P403+P233, P405, P410+P403, P501

H270

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Incompatibilities: acids; ammonium fluoride; carbon tetrachloride; fluorinated polymers; fuels, hydrogen-containing materials; iodine; metals, or metal oxides, or metal salts or non-metals, or non-metal oxides; nitrocompounds; organic material; polychlorotrifluoroethylene; refractory material; water.|...ON CONTACT WITH ACID OR ACID FUMES EMITS HIGHLY TOXIC FUMES; WILL REACT WITH WATER OR STEAM TO PRODUCE MUCH HEAT AND TOXIC AND CORROSIVE FUMES; REACTS VIGOROUSLY WITH REDUCING MATERIALS.|While chlorine trifluoride was being passed through Kel-F Oil (chlorotrifluoroethylene polymer) for disposal the inadvertent introduction of moisture set up the exothermic water-plus-chlorine trifluoride reaction. Heat evolved initiated a violent reacton with Kel-F Oil. Chlorine trifluoride & chromic anhydride react violently with evolution of brown fumes. /It/ produces a violent reaction without flame in presence of arsenic trioxide, bismuth trioxide, lanthanum oxide, phosphorus pentoxide or stannic oxide. Combination of chlorine trifluoride & fuming nitric acid, potassium carbonate, potassium iodide, silver nitrate, 10% sodium hydroxide or sulfuric acid results in a violent reaction. Chlorine trifluoride is compatible with other oxidizers such as OF2 & ClO3F, but reacts violently with organics.|When...in contact with rubber a violent reaction occurs.|For more Hazardous Reactivities and Incompatibilities (Complete) data for CHLORINE TRIFLUORIDE (12 total), please visit the HSDB record page.

Farrar RL Jr, Barber EJ; Some considerations in the handling of fluorine and the chlorine fluorides; Report (K/ET-252) 46 pages (1979). This review of the safe handling of fluorine and the chlorine fluorides includes physical, chemical, and toxicological properties; choice of materials of construction and materials in contact with the active gases; safe practices in design and operation of experiments and processes; soda lime traps and caustic scrubbing for fluorine disposal; and explosive reactions and explosive situations.|Lee SG et al; Experimental Study on Flammability Limlt of a Chlorine Trifluoride/Dichlorosilane/Nitrogen Mixture; Journal of Loss Prevention in the Process Industries 5 (3): 192-5 (1992)

Special Hazards of Combustion Products: If released from container, fumes are toxic and irritating. Behavior in Fire: If released from container, can increase the intensity of fire. Containers may explode. (USCG, 1999)|Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire. Many reactions may cause fire or explosion. Risk of fire and explosion on contact with water or organic materials.|Reactive - 3rd degree

|Danger|H270 (100%): May cause or intensify fire; oxidizer [Danger Oxidizing gases]|P220, P244, P260, P264, P271, P273, P280, P284, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P320, P321, P363, P370+P376, P391, P403, P403+P233, P405, P410+P403, and P501|Aggregated GHS information provided by 116 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H270: May cause or intensify fire; oxidizer [Danger Oxidizing gases]|P220, P244, P260, P264, P270, P271, P280, P284, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P310, P314, P320, P321, P363, P370+P376, P403, P403+P233, P405, P410+P403, and P501

Excerpt from ERG Guide 124 [Gases - Toxic and/or Corrosive - Oxidizing]: As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 1749 datasheet. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 124 [Gases - Toxic and/or Corrosive - Oxidizing]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. Do not touch or walk through spilled material. Keep combustibles (wood, paper, oil, etc.) away from spilled material. Stop leak if you can do it without risk. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Do not direct water at spill or source of leak. If possible, turn leaking containers so that gas escapes rather than liquid. Prevent entry into waterways, sewers, basements or confined areas. Isolate area until gas has dispersed. Ventilate the area. (ERG, 2016)

Skin: Wear appropriate personal protective clothing to prevent skin contact. Eyes: Wear appropriate eye protection to prevent eye contact. Wash skin: If the chemical is in liquid form, the worker should immediately wash the skin when it becomes contaminated. Remove: If chemical is in liquid form, work clothing that becomes wet or significantly contaminated should be removed and replaced. Change: No recommendation is made specifying the need for the worker to change clothing after the work shift. Provide: Eyewash fountains should be provided (when chemical is in liquid form) in areas where there is any possibility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection. Facilities for quickly drenching the body should be provided (when chemical is in liquid form) within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] (NIOSH, 2016)|Wear appropriate personal protective clothing to prevent skin contact.|Wear appropriate eye protection to prevent eye contact.|Eyewash fountains should be provided in areas where there is any possbility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection. /Liquid/|Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] /Liquid/|For more Personal Protective Equipment (PPE) (Complete) data for CHLORINE TRIFLUORIDE (10 total), please visit the HSDB record page.|(See protection codes)

Spontaneously combusts on contact with organic or silicacious matter.

Do not use water water. Violent reaction may result. Use appropriate extinguishing agents on nearby combustible fires. Use of dry chemical or carbon dioxide preferred.|If material involved in fire: Do not use water on material itself. Use dry chemical or carbon dioxide. Cool all affected containers with flooding quantities of water. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock-down vapors.|Wear chemical protective suit with self-contained breathing apparatus. Combat fires from safe distance or protected location. Extinguish with dry chemicals or carbon dioxide. DO NOT USE WATER OR FOAM ON ADJACENT FIRES.

This chemical will attack (react with)...fire fighter's ordinary protective clothing. ... Be very careful not to enter spill area or contact the chemical with the body or clothing.|If released from container, can increase the intensity of fire. Containers may explode.

1) Ventilate area of spill or leak. 2) If in gaseous form, stop flow of gas. If source of leak is cylinder & leak cannot be stopped in place, remove...to safe place in open air, & repair leak or allow cylinder to empty. 3) If in liquid form, evacuate persons not wearing protective equipment from spill area. Allow chlorine trifluoride to evaporate while providing all available ventilation.

SRP: Local exhaust ventilation should be applied wherever there is an incidence of point source emissions or dispersion of regulated contaminants in the work area. Ventilation control of the contaminant as close to its point of generation is both the most economical and safest method to minimize personnel exposure to airborne contaminants.|...SUBSTITUTION OF LESS IRRITATING SUBSTANCES...REDESIGN OF OPERATIONS...PREVENT CONTACT, PROVISION OF A PHYSICAL BARRIER AGAINST CONTACT, PROPER WASHING FACILITIES, WORK CLOTHING AND STORAGE FACILITIES, PROTECTIVE CLOTHING, AND BARRIER CREAMS. MEDICAL CONTROL...|Chlorine trifluoride should always be removed from the cylinder as a gas. Cylinders...should never be connected directly to apparatus containing a liquid absorbing medium. A trap should be inserted in the line between the cylinder & the reaction vessel adequate to contain the entire volume of liquid that might be drawn into the chlorine trifluoride line. ... Thorough flushing with an inert gas should precede any opening of apparatus that has contained chlorine trifluoride.|SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.|For more Preventive Measures (Complete) data for CHLORINE TRIFLUORIDE (11 total), please visit the HSDB record page.

If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY.|/GUIDE 124: GASES - TOXIC and/or CORROSIVE - OXIDIZING/ Fire or Explosion: 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.|/GUIDE 124: GASES - TOXIC and/or CORROSIVE - OXIDIZING/ Health: 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.|/GUIDE 124: GASES - TOXIC and/or CORROSIVE - OXIDIZING/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. Keep unauthorized personnel away. Stay upwind. Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks). Keep out of low areas. Ventilate closed spaces before entering.|For more DOT Emergency Guidelines (Complete) data for CHLORINE TRIFLUORIDE (9 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

/Chlorine trifluoride/ is a very strong irritant of the eyes, respiratory system, and mucous membrane.

Permissible Exposure Limit: Table Z-1 Ceiling value: 0.1 ppm (0.4 mg/cu m).

Recommended Exposure Limit: Ceiling Value: 0.1 ppm (0.4 mg/cu m).

Evacuate danger area! Consult an expert! Personal protection: complete protective clothing SPECIFICALLY RECOMMENDED AS EFFECTIVE AGAINST Chlorine trifluoride, including self-contained breathing apparatus. Ventilation. Turn off gas at source if possible. NEVER direct water jet on liquid.

Fireproof. Separated from combustible substances, reducing agents and food and feedstuffs. Cool. Dry.

A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

The substance is corrosive to the eyes, skin and respiratory tract. Inhalation may cause lung oedema. The effects may be delayed. Medical observation is indicated.

NO contact with flammables. NO contact with water.

AVOID ALL CONTACT!

Use ventilation, local exhaust or breathing protection.

Protective gloves. Protective clothing.

Wear face shield or eye protection in combination with breathing protection.

| 4 - Materials that, under emergency conditions, can be lethal.| 0 - Materials that will not burn under typical fire conditions, including intrinsically noncombustible materials such as concrete, stone, and sand.| 3 - Materials that in themselves are capable of detonation or explosive decomposition or explosive reaction but that require a strong initiating source or must be heated under confinement before initiation.|OX - Oxidizer: Materials that possess oxidizing properties.

LC50 Mouse inhalation 178 ppm/1 hr

Persons with impaired pulmonary function may be at increased risk from exposure.

The hazard of exposure to chlorine trifluoride in atmosphere is at least as great as that of chlorine.

F2, HF, ClF, and Cl2

Inhalation causes extreme irritation of respiratory tract; pulmonary edema may result. Vapors are very irritating to eyes and skin; liquid causes severe burns. (USCG, 1999)

Eye: If this chemical contacts the eyes, immediately wash the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately. Contact lenses should not be worn when working with this chemical. Skin: If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly. Breathing: If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If breathing has stopped, perform mouth-to-mouth resuscitation. Keep the affected person warm and at rest. Get medical attention as soon as possible. Swallow: If this chemical in liquid form has been swallowed, get medical attention immediately. (NIOSH, 2016)|(See procedures)

Fresh air, rest. Half-upright position. Refer for medical attention.

First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Fluoride is protoplasmic poison that binds with calcium, inhibits enzyme systems, and activates glycolic and proteolytic mechanisms. Management consists of symptomatic and supportive care, plus the administration of calcium and the treatment of hyperkalemia. Hemodialysis may be useful in severe cases. Prognosis is largely dictated by the clinical course over the first several hours. Survival beyond 4 hours is generally associated with a favorable outcome. /Fluoride/

Liquid chlorine trifluoride causes deep penetrating burns on contact with body. The effect may be delayed & progressive, as in the case of burns by hydrogen fluoride.

chlorine trifluoride

The substance can be absorbed into the body by inhalation.|inhalation, ingestion (liquid), skin and/or eye contact

Eye, skin burns (liquid or high vapor concentration); resp irritation; In Animals: lacrimation (discharge of tears), corneal ulcer; pulmonary edema

Burning sensation. Cough. Sore throat. Laboured breathing. Shortness of breath.

Redness. Serious skin burns. Pain. Blisters.

Redness. Pain. Severe deep burns. Loss of vision.

Skin, eyes, respiratory system

Most of the product is used in nuclear fuel processing

CP, 99.0% pure grade

Chlorine fluoride (ClF3): ACTIVE|As of 1993, Air Products and Chemicals, Inc was the only US producer

INVESTIGATION WAS MADE TO DETERMINE USE OF ABSORPTION SPECTROSCOPY TO ANALYZE TOXIC GASES & VAPORS ASSOCIATED WITH ROCKET PROPELLANTS USED BY AIR FORCE.

Fire Hazards -> Reactive - 3rd degree