Dry Ice Durban
Food in Durban

Dry Ice. Available 24/7/365. Deliveries can be arranged. Food Grade.

Dry ice is the solid form of carbon dioxide (CO 2 ), which is colourless, odourless, non-flammable and slightly acidic. Solid CO 2 forms a gas at atmospheric pressure, without an intermediate liquid, through a process called sublimation. Dry ice can be manufactured from gases with a high concentration of carbon dioxide. Such gases can be a by-product of another process, such as producing ammonia from nitrogen and natural gas, or large-scale fermentation. Secondly, the carbon dioxide-rich gas is pressurised and refrigerated until it liquefies. When this occurs, some liquid carbon dioxide vaporises, causing a rapid decrease in temperature of the remaining liquid. As a result, the extreme cold causes the liquid to solidify into a snow-like consistency. Finally, the snow-like, solid carbon dioxide is compressed into either small pellets or larger blocks of dry ice. Dry ice is typically produced in two standard shapes: blocks and cylindrical pellets. Blocks are commonly used in transport because these sublimate relatively slowly due to a low ratio of surface area to volume. This shape is suitable for use on a small scale, for example grocery stores and laboratories. As solid CO 2 sublimates, large quantities of dry ice may be placed into shipping containers; there is no need to take into account any volume of liquid accumulating. Dry ice a very effective coolant compared to water ice, since it is colder and leaves no moisture as it changes state. It plays an important role in preserving foods during transportation, thus preventing bacterial growth. Scientists all over the world are investigating replacing HCFC gases (hydrochlorofluorocarbons) as refrigerant with dry ice, especially in developing countries. The use of dry ice as a refrigerant will slow down the harmful effects of HCFCs to the ozone layer and help to reduce global warming. CO 2 gas is heavier than air and it can therefore accumulate in basements or other low-lying areas, which may cause suffocation. Keep vehicle windows open to ensure a draft, during the transportation of dry ice. Dry ice is much colder than water ice and may burn skin (similar to frostbite). Wear insulated gloves during handling and safety glasses or a face shield when cutting or chipping it. Dry ice stored in a household storage freezer or refrigerator, is unlikely to produce CO 2 gas in sufficient quantities to cause a health risk. Order the appropriate product which is suitable for the intended application, as it can be difficult and dangerous to cut. Store dry ice in a container which allows for some ventilation, otherwise excessive levels of CO 2 gas can build up pressure inside the container and may pose a danger for explosion. Buy dry ice blasting pellets online from our trusted dry ice e-shop. We have a range of dry ice blaster available for sale. We can also service and repair your blaster View Blasters. Dry Ice International has been recognised as the leader in dry ice manufacturing, distribution and dry ice blast cleaning in South Africa, as well as other parts of Africa since 1994.