Difluoromethane

  • R 32
  • Methyl fluoride

Colorless gas with slight ethereal odor

Gaseous

  • 2.16 kg · m-3
  • 1.1 g · cm -3

-136 ° C

-51.7 ° C

Poorly in water ( 3.65 g · l-1 at 20 ° C)

Risk

675 (relative to 100 years)

-452.3 KJ / mol

Template: Infobox chemical / molecular formula search available

Difluoromethane is a gaseous, organic chemical compound from the group of fluorinated hydrocarbons ( HFCs).

Properties

Difluoromethane is a highly flammable gas which forms explosive mixtures with air. The explosion range is between 13.5 vol% as the lower explosive limit ( LEL) and 27.5 vol% as the upper explosive limit ( UEL). It is heavier than air and 3.65 g / l poorly soluble in water.

Use

CH2F2 place as a refrigerant use.

Environment

Difluoromethane is a greenhouse gas 675 times more potent than CO2. However, in contrast to the chlorofluorocarbon substances it is not ozone depleting. In the Kyoto Protocol, it is named as " hydrogen-containing fluorocarbon " whose emissions must be reduced.

CAS registry number PubChem Vapor pressure Dangerous Substances Directive (67/548/EEC) Fluorine Haloalkane Flammability limit CRC Handbook of Chemistry and Physics Digital Object Identifier Dibromomethane Integrated Authority File
174692
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