difluoroethane
The answer is, liquid nitrogen ISN'T used in beer cans. Nitrogen GAS is. And the reason nitrogen gas is used in beer cans is to emulate draft beer such as one would get out of a keg(as opposed to cask) beer.
If you mean by a disk, Get a duster, the tiniest bit of Washing up liquid and just wipe the shiny side. Using the dry side of the duster wipe excess dampness off. (Duster as in the yellow cloth mostly common coloured).
Duster is called "धूलपट" in Sanskrit.
Spray cans carry a load of compressed gas that presses the liquid out through a small hole, aerosolizing it.
a man named duster
duster = Staubtuch duster = Staublappen duster = Staubwedel to dust = abstauben, Staub wischen, entstauben to dust (cookery) = bestreuen, to dust (botany) = bestäuben
the duster came out in 1970.
Duster - album - was created in 1967.
Blood Duster was created in 2007.
Dacia Duster was created in 2010.
Duster Bennett died in 1976.
Duster Bennett was born in 1946.