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|CAS No.:||75-10-5||EINECS No.::||200-839-4|
|UN NO.:||3252 2.1||Other Names:||1,1-Difluoromethane;Carbon Fluoride Hydride (CF2H2);carbonfluoridehydride;CH2F2;Difluormethan;difluoro-methan;EcoloAce32;F32|
|Appearance::||Colorless Liquefied Gas||Grade Standard:||Electron Grade Industrial Grade|
|Odor:||No Strange Stench||Flammability Range (in Air):||Non-flammable|
CAS 75-10-5 Refrigerant Gas HFC32 Difluoromethane R32 CH2F2
A colorless odorless gas. Insoluble in water and has a high thermal stability. Its vapors are heavier than air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. Contact with the unconfined liquid can cause frostbite. Used as a refrigerant.
Highly flammable. Insoluble in water. Easily ignited by heat, sparks or flames. Forms explosive mixtures with air.
Difluoromethane can react with some metals to form dangerous products. May react violently with aluminum. Incompatible with strong oxidizing and reducing agents. Also incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides.
Vapors may cause dizziness or asphyxiation without warning. Some may be irritating if inhaled at high concentrations. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating and/or toxic gases.
EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along ground. CAUTION: Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966) and Methane (UN1971) are lighter than air and will rise. Hydrogen and Deuterium fires are difficult to detect since they burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.) Vapors may travel to source of ignition and flash back. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.
1. Physical properties
|Packing||400kg/400L ,800kg/800L ,1000kg/1000L,950kg/926L|
|Storage and Transportation||Use, store and transport below 45C. Store in cool and well-ventilated areas. Keep away from fire, heat, sunlight and flammable substances. Handle carefully when loading and unloading to avoid damages to gas cylinders and accessories.|
2. Typical technical data
|Property of chloride :|
|Boiling Point, °C||-53.15|
|Critical Temperature, °C||78.25|
|Critical Pressure, Mpa||5.808|
|Specific Heat of Liquid, 30°C, [KJ/(kg•°C)]||2.35|
3.Quality standard :
|Quality standard :|
|Vapor Residue, PPm||≤100|
|Appearance||Colorless, No turbid|
|Odor||No Strange Stench|
|Refrigerant||Difluoromethane is a refrigerant that has zero ozone depletion potential|
|For air-conditioning.||Difluoromethane in a zeotropic (50%/50%) m/m mixture with pentafluoroethane (R-125) is known as R-410A, a common replacement for various chlorofluorocarbons (aka ) in new refrigerant systems, especially for air-conditioning.|