Sodium chloride or silver iodide
is mixed with water for spraying the clouds.
Cloud seeding experiments with silver iodide
, resulting in "explosions" that release tremendous energies, indicate that weathermen may do more than predict weather in the future.
The work shall include releasing silver iodide
into the atmosphere from aircraft in order to enhance the amount of precipitation.
An almost daily occurrence in eastern and some northern areas, the rainfall was marked by a little help from man, in this case an exercise known as cloud seeding, a manmade process in which materials such as salts, silver iodide
or dry ice are discharged into clouds to prompt rainfall and modify the weather, a method that appears to be working given the right conditions in the United Arab Emirates.
This image explaining cloud seeding shows the chemical either silver iodide
or dry ice being dumped onto the cloud which then becomes a rain shower.
Particles from a fire work to some extent, but dry ice and silver iodide
Another, called silver iodide
, is used for developing photographs.
, dry ice, and ice nucleating proteins are high-temperature nucleators, while calcium, magnesium dust, and silt are low-temperature ones.
Cloud seeding is done by spreading either dry ice, or more commonly, silver iodide
aerosols into the upper part of clouds to try to stimulate the precipitation process and form rain.
The unexposed silver iodide
was washed off with sodium chloride.
Previous work by the authors has shown that silver impregnated activated carbon (SIAC) and silver chloride impregnated activated carbon (SIAC-Cl) are effective materials for removal and sequestration of iodide from water through the formation of a silver iodide
(AgI(s)) surface precipitate (i.
The concern is that silver iodide
- the catalyst used for the purpose - is considered hazardous and a toxic pollutant but scientists said that the quantities used are not large enough to have any effect on the environment, reports the China Daily.