- Halon 1211
- Freon 12 B 1
- R 12 B 1
Colorless gas. Almost odorless.
Mechanical vapor compression systems use fluorocarbons for refrigeration & air conditioning & account for majority of refrigeration capability in us. Fluorocarbons are used as refrigerants in home appliances, mobile air conditioning units, retail food refrigeration systems & chillers. Fluorocarbons.
Registry Numbers and Inventories.
Mutagen; Human Data
Swiss Giftliste 1
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
1720 (25 C)
Vapor density (air=1)
1.850 g/m3 (liquid density)
Solubility in water
4.7544x10-2 n/m @ 113.65 K
Partition coefficient, pKow
Heat of vaporization
Hazards and Protection.
Stoor in a cool location with good ventillation.
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.
Many of the fluorocarbons are good solvents of skin oil, so protective ointment should be used. Neoprene gloves, protective clothing, and eye protection minimize risk of topical contact. Degreasing effect on skin can be treated with lanolin ointment.
Wear positive pressure self-contained breathing apparatus (SCBA).
Attempt to stop leak if without undue personnel hazard.
Stable at normal temperatures and pressures.
Can react violently with strong reducing agents such as the very active metals and the active metals Can react with strong oxidizing agents or weaker oxidizing agents under extremes of temperature.
When heated to decomposition it emits very toxic fumes of hydrogen bromide, hydrogen chloride and hydrogen fluoride. Under certain conditions, fluorocarbon vapors may decompose on contact with flames or hot surfaces, creating the potential hazard of inhalation of toxic decomposition products.
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Do not use water on material itself. Use water spray to knock-down vapors.
May burn but does not ignite readily.
Containers may explode when heated. Ruptured cylinders may rocket.
All fluorocarbons will undergo thermal decomposition when exposed to flame or red-hot metal.
Headache, dizziness, and disorientation are common. Cerebral edema may be found on autopsy. Dichlorodifluoromethane was not teratogenic in rats and rabbits. <br>The reproductive effects of 1,1,1,2-tetrafluoroethane were studied in rats. No adverse effects on reproductive performance was noted or on the development, maturation or reproductive performance of up to two successive generations.
Nausea may develop. Ingestion of a small amount of trichlorofluoromethane resulted in necrosis and perforation of the stomach in one patient.
Pulmonary irritation, bronchial constriction, cough, dyspnea, and chest tightness may develop after inhalation. Chronic pulmonary hyperreactivity may occur. Adult respiratory distress syndrome has been reported following acute inhalational exposures. Pulmonary edema is an autopsy finding in fatal cases.
Dermal contact may result in defatting, irritation or contact dermatitis. Severe frostbite has been reported as an effect of freon exposure. Injection causes transient pain, erythema and edema.
EYES - Eye irritation occurs with ambient exposure. Frostbite of the lids may be severe. NOSE - Nasal irritation occurs with ambient exposure. THROAT - Irritation occurs. Frostbite of the lips, tongue, buccal mucosa and hard palate developed in a man after deliberate inhalation.
These substances may cause frostbite to the upper airway and gastrointestinal tract after ingestion. Administer oxygen and manage airway as clinically indicated. Emesis, activated charcoal, and gastric lavage are not recommended.
Provide a quiet calm atmosphere to prevent adrenaline surge if the patient is seen before the onset of cardiac arrhythmias. Minimize physical exertion.
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. If frostbite has occurred, refer to dermal treatment in the main body of this document for rewarming.
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility. Ophthamologic consultation should be obtained in any symptomatic patients.