Examples of 'difluoromethane' in a sentence
Meaning of "difluoromethane"
Difluoromethane is a colorless gas with a faint ether-like odor, often used as a refrigerant or propellant for aerosols
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- A dihalogenoalkane in which two of the four hydrogen atoms of methane are replaced by fluorine, used as a refrigerant.
How to use "difluoromethane" in a sentence
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difluoromethane
Mixtures containing only difluoromethane and pentafluoroethane.
Processes have been proposed for the production of difluoromethane.
Process for producing difluoromethane and difluorochloromethane.
Process for the manufacture of difluoromethane.
Difluoromethane is a synthetic compound containing carbon, fluorine and hydrogen atoms but no chlorine.
A process for producing difluoromethane comprising the steps of.
Process for the separation of hydrogen fluoride and of difluoromethane.
Any mixture proportion between the two gases difluoromethane and pentafluoroethane may be possible.
The present invention provides a process for producing difluoromethane.
Examples of an appropriate difluoromethane transfer reagent include chlorodifluoromethane, bromodifluoromethane, and the like.
Method of preparing alkaline difluoromethane sulfonates.
Certain prior methods involve fluorinating one or more chlorinated organic compounds to produce difluoromethane.
An azeotropic mixture consisting of difluoromethane and hydrogen fluoride.
This invention relates to a process for the production of difluoromethane.
Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure.
See also
Process for the preparation of difluoromethane.
As regards the difluoromethane and carbon dioxide binary system, the available data were used F.
Process for drying difluoromethane.
A blend was prepared in a 75 cc stainless steel cylinder consisting of pentafluoroethane and difluoromethane.
A process according to Claim 1 or Claim 2 wherein the appropriate difluoromethane transfer reagent is chlorodifluoromethane.
The air conditioner of claim 1, wherein a refrigerant in the refrigerant circuit is difluoromethane.
Generally, the reaction with an appropriate difluoromethane transfer reagent requires 30 minutes to 2 hours.
This invention relates to novel nonazeotropic compositions containing difluoromethane.
M7 Initiated by the Carriage of Difluoromethane as a substance of Class 2.
A process as claimed in claim 4 wherein the fluorocarbon is difluoromethane.
A difluoromethane productivity of 3.9 g / h at the condenser outlet was observed.
It finds a particularly advantageous application in the manufacture of difluoromethane from chlorodifluoromethane.
Difluoromethane refrigerant gas r32.
The hydrodechlorination of chlorofluorinated hydrocarbons has already been used for manufacturing difluoromethane from chlorodifluoromethane.
The yield of sodium difluoromethane sulfonate, therefore, amounted to 11 percent.
A step to fill the refrigerant circuit of the upgraded air conditioner with difluoromethane as a refrigerant.
We especially prefer to employ difluoromethane ( HFC 32 ) as the third component.
We have found, though, that a particularly useful third component is difluoromethane.
In Comparative Example 6 the performance of a composition comprising difluoromethane and pentafluoroethane was evaluated.
A refrigerant as claimed in claim 3, wherein component ( b ) is difluoromethane.
Less than 50 ppm of difluoromethane.
A refrigerant as claimed in claim 6 or claim 7, wherein component ( b ) is difluoromethane.
A composition of claim 6 wherein the weight ratio of difluoromethane to perfluoroethane is 11:89.
In the ninth aspect, the refrigerant in the refrigerant circuit ( 20 ) is difluoromethane.
Among the utilized bis ( fluoroxy ) perfluoroalkanes, bis ( fluoroxy ) difluoromethane ( BDM ) is particularly preferred.
Use according to claim 16, wherein the compression-type refrigerator utilizes a difluoromethane as the refrigerant.
Azeotrope-like compositions of difluoromethane.
A composition according to claim 18 in which the hydrofluorocarbon is difluoromethane or trifluoromethane.
The process of claims 1 or 2, wherein the organic is selected from chlorodifluoromethane and difluoromethane.
Compound ( common abbreviation or description ) Difluoromethane.
A non-azeotropic refrigerant composition as claimed in claim 13 wherein component ( C ) is a mixture of difluoromethane and pentafluoroethane.
Azeotropic mixture with approximately 23 % difluoromethane.
