Â­. Â­Dry ice is frozen carbon dioxide. A block of dry ice has a surface temperature of -109.3 degrees Fahrenheit (-78.5 degrees C). Dry ice also has the very nice feature of sublimation -- as it breaks down, it turns directly into carbon dioxide gas rather than a liquid.
The time for a broken collarbone to fully heal depends on the severity of the injury. In children, complete healing may take as little as three to six weeks. In adults, six to 16 weeks or more are often necessary for a collarbone to heal solidly.
How long it takes a facial fracture to heal will depend on the type and extent of fracture and what other problems and treatment you had. Bruising and swelling usually takes 2 to 3 weeks to settle down.At this point, you will begin to look more normal. After this time the body will continue to heal itself inside.ow long it takes a facial fracture to heal will depend on the type and extent of fracture and what other problems and treatment you had. Bruising and swelling usually takes 2 to 3 weeks to settle down. At this point, you will begin to look more normal.