Difluorochloromethane

Not classified.

H280 Contains gas under pressure; may explode if heated

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Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.

ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .

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

Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a doctor or Poison Control Center immediately.

Inhalation at greater than 10% concentration in air may cause narcosis. Liquid may cause frostbite. (USCG, 1999)

Victims of freon inhalation require management for hypoxic, CNS anesthetic, & cardiac symptoms. Patients must be removed from the exposure environment, & high flow supplemental oxygen should be utilized. The respiratory system should be evaluated for injury, aspiration, or pulmonary edema & treated appropriately. CNS findings should be treated supportively. A calm environment with no physical exertion is imperative to avoid increasing endogenous adrenegic levels. Exogenous adrenergic drugs must not be used to avoid inducing sensitized myocardial dysrhythmias. Atropine is ineffective in treating bradyarrhythmias. For ventricular dysrhythmias, diphenylhydantoin & countershock may be effective. Cryogenic dermal injuries should be treated by water bath rewarming at 40-42 deg C until vasodilatory flush has returned. Elevation of the limb & standard frostbite management with late surgical debridement should be utilized. Ocular exposure requires irrigation & slit lamp evaluation for injury. Freons

If material involved in fire: 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.

Special Hazards of Combustion Products: Decomposition gases are toxic and irritating. (USCG, 1999)

In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water.

Ventilation.

Ventilation.

Collect and arrange disposal. Keep the chemical in suitable and closed containers for disposal. Remove all sources of ignition. Use spark-proof tools and explosion-proof equipment. Adhered or collected material should be promptly disposed of, in accordance with appropriate laws and regulations.

NO open flames. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Fireproof. Cool. Ventilation along the floor.Store in a cool, well-ventilated area of low fire risk and out of direct sunlight. Protect cylinder and its fittings from physical damage. Storage in subsurface locations should be avoided. Close valve tightly after use and when empty.

TLV: 1000 ppm as TWA; A4 (not classifiable as a human carcinogen).MAK: 1800 mg/m3, 500 ppm; peak limitation category: II(8); pregnancy risk group: C.EU-OEL: 3600 mg/m3, 1000 ppm as TWA

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Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.

Wear safety goggles.

Cold-insulating gloves.

Use ventilation, local exhaust or breathing protection.

no data available

Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive gases including hydrogen chloride (see ICSC 0163), phosgene (see ICSC 0007), hydrogen fluoride (See ICSC 0283) and carbonyl fluoride (See ICSC 0633). Attacks magnesium and its alloys.

The product is stable.

Not flammable.The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.CHLORODIFLUOROMETHANE is incompatible with the following: Alkalis, alkaline earth metals (e.g., powdered aluminum, sodium, potassium, zinc) (NIOSH, 2016).

no data available

In a dichlorodifluoromethane system, frictional wear exposed fresh metal surfaces on an aluminum compressor impellor, causing an exothermic reaction which melted much of the impellor. Later tests showed similar results ... with ... chlorodifluoromethane .

Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive gases including hydrogen chloride, phosgene, hydrogen fluoride and carbonyl fluoride.

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Evaluation: There is inadequate evidence in humans for the carcinogenicity of chlorodifluoromethane. There is limited evidence in experimental animals for the carcinogenicity of chlorodifluoromethane. Overall evaluation: Chlorodifluoromethane is not classifiable as to its carcinogenicity in humans (Group 3).

no data available

Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the cardiovascular system and central nervous system. This may result in cardiac disorders and central nervous system depression. Exposure could cause lowering of consciousness. See Notes.

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On loss of containment this substance can cause suffocation by lowering the oxygen content of the air in confined areas.

AEROBIC: Chlorodifluoromethane, present at 1.69 mg/L, reached 0% of its theoretical BOD in 4 weeks using an activated sludge inoculum at 2 mg/L in the Japanese MITI test(1). The maximum oxidation rate measured for chlorodifluoromethane in aerobic soil microcosms incubated with methane and air to simulate the gas composition in landfill soil covers was 0.343 mg/g soil-hour(2).

An estimated BCF of 2.4 was calculated in fish for chlorodifluoromethane(SRC), using a log Kow of 1.08(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

The Koc of chlorodifluoromethane is estimated as 8.6(SRC), using a log Kow of 1.08(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that chlorodifluoromethane is expected to have very high mobility in soil. However, since chlorodifluoromethane is a gas(4) under ambient conditions, most of the chemical released on soil will volatilize rapidly, effectively reducing the potential for leaching into groundwater(SRC).

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The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

ADR/RID: UN1018 (For reference only, please check.)

IMDG: UN1018 (For reference only, please check.)

IATA: UN1018 (For reference only, please check.)

ADR/RID: CHLORODIFLUOROMETHANE (REFRIGERANT GAS R 22) (For reference only, please check.)

IMDG: CHLORODIFLUOROMETHANE (REFRIGERANT GAS R 22) (For reference only, please check.)

IATA: CHLORODIFLUOROMETHANE (REFRIGERANT GAS R 22) (For reference only, please check.)

ADR/RID: 2.2 (For reference only, please check.)

IMDG: 2.2 (For reference only, please check.)

IATA: 2.2 (For reference only, please check.)

ADR/RID: (For reference only, please check.)

IMDG: (For reference only, please check.)

IATA: (For reference only, please check.)

ADR/RID: No

IMDG: No

IATA: No

no data available

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High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.Check oxygen content before entering the area.The odour warning when the exposure limit value is exceeded is insufficient.Do NOT use in the vicinity of a fire or a hot surface, or during welding.Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.