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.
Broken collarbone-broken clavicle. The collarbone, called the clavicle by doctors, is an S shaped bone that connects the shoulder to the breastplate (called the sternum). The clavicle is very near the skin, and it can be seen and felt very easily in most people.nstead, the bone is allowed to heal on its own, and your doctor will be able to suggest ways in which you can ease the pain and discomfort. This will usually include wearing a sling or a figure of eight bandage for one to two weeks, applying ice packs to the area of the break, and taking mild pain pills.