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the product in aqueous solution characterized by the fact that, at temperatures ranging from - 8 degrees centigrade or so, in the presence of air, it absorbs the gas constituting the air itself.in particular, nitrogen and oxygen.
the product in aqueous solution characterized by the fact that, at temperatures ranging from - 8 degrees centigrade or so, in the presence of air, it absorbs the gas constituting the air itself.in particular, nitrogen and oxygen.
The aqueous solution forming the subject-matter of this patent application is characterized in that it consists basically of 1000 parts of water in which are dissolved from 5 to 1000 parts of carbolic acid diamide and from 5 to 50 parts of liquid soap free of base. This solution, in the presence of air, at an ambient temperature varying between approximately -8 degree C and approximately +8 degree C, absorbs the constituent gases of the air itself, in particular nitrogen and oxygen. If this solution, in a suitable container, is placed in a refrigerator operating at the abovementioned temperatures, it will help to keep perishable substances kept in the container, especially substances intended for food use.
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