 Typical liquids include propane, ammonia, carbon dioxide or nitrogen.As a method of disinfecting water, bringing it to its boiling point at , is the oldest and most effective way since it does not affect the taste, it is effective despite contaminants or particles present in it, and is a single step process which eliminates most microbes responsible for causing intestine related diseases.The boiling point of water is at sea level and at normal barometric pressure.