When heating with an alcohol lamp, the outer flame should be heated. The flame of the normally used alcohol lamp should be divided into three parts: the flame core, the inner flame and the outer flame. Theoretically, it is generally believed that the outer flame of the alcohol lamp has the highest temperature. The outer flame is in full contact with the outside atmosphere. It is the easiest to exchange energy with the environment during combustion and release the most heat, causing the temperature of the outer flame to be higher than the inner flame.
When heating with an alcohol lamp, should you use an outer flame or an inner flame?
When heating with an alcohol lamp, you can use test tubes, flasks, beakers, and evaporating dishes to heat liquids. When heating solids, drying can be used. Test tubes, evaporating dishes, etc. Some instruments such as gas bottles, measuring cylinders, funnels, etc. are not allowed to be heated with alcohol lamps.
Alcohol lamps are heating tools that use alcohol as fuel. They are widely used in laboratories, factories, medical treatments, scientific research, etc. Since they do not produce smoke during the combustion process, they can also be used to burn instruments. achieve the purpose of sterilization.
Be sure to use a burning match when lighting an alcohol lamp. Never use one alcohol lamp to light another alcohol lamp, otherwise the alcohol may spill out and cause a fire.