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EINECS 200-871-9
CAS No. 75-45-6 Density 1.277 g/cm3
Solubility slightly soluble in water Melting Point -146 °C
Formula CHClF2 Boiling Point -40.8 °C
Molecular Weight 86.47 Flash Point
Transport Information UN 1018 Appearance Colourless gas
Safety 23-59 Risk Codes 40-59
Molecular Structure Molecular Structure of 75-45-6 (Methane,chlorodifluoro-) Hazard Symbols FlammableF

Algeon 22;Algofrene 22;Algofrene 6;Arcton 22;Arcton 4;CFC 22;Chlorodifluoromethane;Daiflon 22;Difluoromonochloromethane;Dymel 22;F 22 (halocarbon);FC 22;FC 22 (halocarbon);FKW 22;Flugene22;Forane 22;Freon 22;Frigen 22;Fron 22;HFA 22;Haltron 22;Isceon 22;Isotron 22;Khladon 22;Korfron 22;Propellant 22;Refrigerant R 22;Solkane 22;Ucon 22;


Difluorochloromethane Chemical Properties

Molecular Formula: CHClF2
Molecular Weight: 86.47
EINECS: 200-871-9 
Index of Refraction: 1.278
Density: 1.277 g/cm3
Melting point: -146 °C
Boiling Point: 155 °C
Water solubility: Slightly soluble
Appearance: Colourless gas
Structure of Difluorochloromethane (CAS NO.75-45-6):
IUPAC Name: Chloro(difluoro)methane
Product Category of Difluorochloromethane (CAS NO.75-45-6): refrigerants;Organics;Refrigerant

Difluorochloromethane Uses

 Difluorochloromethane (CAS NO.75-45-6) is mainly used as mainlyPropellant, fumigant, insecticide. It  was once commonly used as a propellant and in air conditioning applications.

Difluorochloromethane Production

 Difluorochloromethane (CAS NO.75-45-6) can be prepared from Chloroform : HCCl3 + 2HF → HCF2Cl + 2HCl .

Difluorochloromethane Toxicity Data With Reference


mmo-sat 33 pph/24H-C

    TOLED5    Toxicology Letters. 2 (1978),1.

mma-sat 33 pph/24H-C

    TOLED5    Toxicology Letters. 2 (1978),1.

ihl-rat LC50:35 pph/15M

    HUTODJ    Human Toxicology. 1 (1982),239.

ihl-mus LC50:28 pph/20M

    TXAPA9    Toxicology and Applied Pharmacology. 59 (1981),64.

ihl-dog LCLo:70 pph

    TXAPA9    Toxicology and Applied Pharmacology. 2 (1960),363.

Difluorochloromethane Consensus Reports

It is reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

Difluorochloromethane Safety Profile

Hazard Codes: FlammableF
Risk Statements: 40-59 
R40:Limited evidence of a carcinogenic effect. 
R59:Dangerous to the ozone layer.
Safety Statements: 23-59 
S23:Do not breathe vapour. 
S59:Refer to manufacturer / supplier for information on recovery / recycling.
Mildly toxic by inhalation. Experimental reproductive effects. Mutation data reported. An asphyxiant in high concentrations. At elevated pressures, 50% mixtures with air are combustible although ignition is difficult. When heated to decomposition it emits toxic fumes of F and Cl.

Difluorochloromethane Standards and Recommendations

OSHA PEL: TWA 1000 ppm
ACGIH TLV: TWA 1000 ppm; Not Classifiable as a Human Carcinogen
DFG MAK: 500 ppm (1800 mg/m3)
DOT Classification:  2.2; Label: Nonflammable Gas

Difluorochloromethane Specification

 Difluorochloromethane , its cas register number is 75-45-6. It also can be called Chlorodifluoromethane ; Fluorocarbon 22 ; Freon R-22 ; and Freon 22 . Difluorochloromethane (CAS NO.75-45-6) is shipped as a liquefied gas under its own vapor pressure, and is noncombustible. Difluorochloromethane can asphyxiate by the displacement of air. Contact with the liquid can cause frostbite.

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