The topic of "dry water" is quite old. But if you expect an "instant powder" comparable to instant coffee or instant soups, etc., you are wrong. The enema solution from the glass turns out to be an illusion.
Dry water for all situations
The fact that water can also exist in a dry form sounds bizarre, but it has been known, at least in specialist circles, for over 40 years. The "water-icing sugar" could be used in many branches of industry in the future, researchers now report. Among other things, it should help to reduce energy costs.
NANOTECHNOLOGY09/23/2010
That's the finding of a study presented by Andrew Cooper and his team from the University of Liverpool recently at the 240th National Meeting of the American Chemical Society in Boston.
Powder for low electricity bills
For example, the powder can be used as a catalyst in the production of succinic acid from the reaction of hydrogen and maleic acid. Succinic acid is widely used in the manufacture of foods, medicines and cosmetics.
Normally, when making this acid, the ingredients need to be stirred. However, this is not necessary if dry water is added instead.
"Removing the need for scientists to stir such reactions in the future would mean a huge energy saving," said Ben Carter, a researcher on Cooper's team, in a press release. The powder has only recently been rediscovered.
Renaissance of an old product
So-called dry water has been around since 1968. It was invented by researchers at Degussa, which is now part of the Evonik Group. Dry water looks like fine sand or icing sugar and is used in the cosmetics industry, for example.
It is 95 percent water with the remaining 5 percent being quartz. Each particle of the powder consists of a tiny drop of water surrounded by a layer of quartz. This prevents the water molecules from coming into contact with each other again and the water becomes liquid.
The material was rediscovered in 2006 by a group of researchers led by Bernie Binks who were studying the structure of dry water. Since then, Cooper has also become interested in the substance and has found new uses for it.
The powder as a binder
Dry water might also be good for liquid storage, especially for emulsions. Emulsions are liquids made up of two or more components that do not dissolve in one another, for example the mixture of oil and water in mayonnaise.
In addition, dry water can bind gases very easily. This could, for example, bind greenhouse gases such as CO2.
In earlier studies, the scientists have already established that methane deposits on the seabed could be broken down more easily with dry water in order to use it as fuel. However, methane is a very strong greenhouse gas.
Peter Stenitzer, science.ORF.at