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Dry Ice and Its Uses
Dry ice removes almost twice as much heat per pound as water ice. It changes directly from a solid to a gas without becoming a liquid, thus, eliminating clean-up.
These features make dry ice especially useful in food preparation, packaging, and transport. By preventing heat build-up, it protects against salmonella growth. It prevents moisture build-up in mixing and water weight loss of product during shipment. In addition, its inert carbon dioxide gas is an excellent preservative and inhibits the growth of many forms of bacteria.
Dry Ice can be used in a variety of ways, including:
- Flash freezing
- Pharmaceutical packing
- Absorbing ammonia
- Refrigeration leaks, and
- Creating fog for the entertainment industry.
- Food Preservation
- Shipping Medical Items
- Freezes Water Pipes For Emergency Plumbing Repairs
- Cooling (-109º F) – Solids, Sliced, Or Pellets
- Hunting, Camping, Fishing, And Insect Control
- Shrink Metal Parts, Lift Floor Tiles, Etc.
The Philadelphia Dry Ice online store is now live. Buy one of four insulated shipping boxes, filled with up to 70 lbs of dry ice, shipped directly to your door.
What Is Dry Ice?
Dry ice is frozen carbon dioxide (CO2) and is much denser and colder than traditional ice. While water freezes at 32º F (0 degrees C), dry ice is -109.3º F (-78.5º C).
In addition, dry ice doesn’t melt – it sublimates. Sublimation is the process of going directly from a solid to a gas. Dry ice bypasses the liquid form, giving it its name “dry” ice.
The first step in making dry ice is to turn the carbon dioxide gas into a liquid. This is done by compressing the CO2 and removing any excess heat. The CO2 will liquefy at a pressure of approximately 870 pounds per square inch. Next, the pressure is reduced over the liquid carbon dioxide by sending it through an expansion valve. Part of the liquid sublimates, causing the remainder to freeze into snow flakes. The dry ice snow is then compacted together under a large press to form blocks. Dry ice is much heavier than traditional ice, weighing about the same as standard bricks.
Three Primary Types of Dry Ice
Cut Dry Ice Blocks
Dry ice blocks (also called slices) serve as excellent refrigeration for food processing and transportation applications.
Dry Ice Pellets
Dry Ice Pellets are especially useful in food processing and lab applications where small nuggets can be tightly packed around items of various shapes.
Pellets are also commonly used by the pharmaceutical and healthcare industries.
Dry Ice Blasting Pellets
Dry Ice Blasting Pellets are for commercial applications but have a variety of uses. Thinner in diameter than regular pellets, blasting pellets are used to clean industrial equipment in an environmentally sustainable manner.
DRY ICE WARNING!
Please Read Before Using
Extreme Cold (-109º F) May Cause Severe Cold Burns. Handle With Gloves. Avoid Contact With Skin And Eyes. Do Not Confine In Tightly Closed Containers. Do Not Enter Confined Areas Such As Walk-In Boxes Where Using Dry Ice Until Adequately Ventilated. Do Not Put In Drinks. Do Not Eat. Keep Out Of Reach Of Children And Animals.