Tuesday, September 27, 2011

The dry ice melt?

!±8± The dry ice melt?

A material can be directly from the solid phase to gas phase without becoming liquid, in a process called sublimation. The sublimation process is also quite often used in theatrical fog to produce. Under the right conditions, water is sublimated and below 0 ° C (32 ° F) there is a solid at atmospheric pressure. Even if you can not melt at lower temperatures, the ice goes directly into the atmosphere as a gas. This process can be easily observed on avery cold day, when the frost disappears from the outside of the window.

Dry ice is solid carbon dioxide from the atmosphere when the pressure solid at -109 ° F (-78.5 ° C). If you need to carry water-based frozen food, a block of dry ice do the trick, because instead of casting, you can go directly from solid to gas. When you put dry ice in hot water, it sublimates rapidly and the flow of gas, which means that small water droplets, creating a fog. This process is often used inTheater, because the gas is cold and carbon dioxide is heavier than air is flowing, the mist over the stage, instead of rising above it.

In a process similar to sandblasting, dry ice is also suitable for surface cleaning spray pellets to remove solid impurities and stripes in color. The pellets sublimate into a gas and will not be cleared to leave behind mounds of sand.

But the state of a substance, gases, liquids or solids to be dependent on temperature and pressure. CarbonCarbon dioxide does not dissolve like most materials at normal atmospheric pressure, but allows the liquid to form at high pressure. If you want to increase the pressure for about five times the normal atmospheric pressure, carbon dioxide is liquid at room temperature. Carbon dioxide is also used for fire extinguishers, liquid carbon dioxide under pressure holds, "snow" or spray for clothing, dry cleaning, in some procedures.

Bottom line, can form liquid dry ice, regular ice seems to melt, butunder normal conditions, at normal atmospheric pressure. It does not dissolve, because unless the atmospheric pressure is higher than five times the carbon dioxide sublimes, going directly from solid to gas. Because of this quality, if a package comes with a block of dry ice, and some will be unchanged, the block of dry ice is only small, but not melted.


The dry ice melt?

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Saturday, September 10, 2011

Bare ground - Bare Ground 2.5 Gallon Liquid Deicer

!±8±Bare ground - Bare Ground 2.5 Gallon Liquid Deicer

Brand : Bare Ground
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Post Date : Sep 10, 2011 16:21:11
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Why scrape snow and ice when you can easily spray on a liquid deicer solution? The Bare Ground liquid deicer solution/anti-icing solution makes it possible for you to shovel less snow and ice this winter. What other snow melt product can offer you less stress and strain? This means fewer sore muscles and less likelihood of heart strain. Bare Ground liquid snow melt solution is a unique environmentally friendly mix. Bare Ground liquid deicer solution-anti-icing solution is pet friendly and is safe to use around livestock. It will not harm plants, shrubs or grass when applied properly. Bare Ground liquid deicer solution/anti-icing solution is nearly odor free and has a light amber color. This is one snow melt product that won t stain driveways or walk ways. It won t stain rugs or tile grout either. Its low viscosity makes it easy to spray using the Bare Ground Deluxe Sprayer system. Bare Ground snow melt solution is the environmentally considerate alternative to harsh rock salt and granular ice melting pellets.

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