The boiling point of water varies in different atmospheric pressure environments, and at standard atmospheric pressure, "the boiling point of water is 100 degrees Celsius". The lower the atmospheric pressure, the lower the boiling point, and the higher the atmospheric pressure, the higher the boiling point. When water as a liquid evaporates, it produces vapor. When the vapor pressure and the outside pressure is equal, this time the vapor pressure has reached a kind of saturation state. At this point the water will boil, the temperature at which the water boils is the boiling point of water.

Examples of boiling points of other liquids:

1. Liquid sodium chloride (table salt): 1465.

2. Linseed oil: 287.

3. Cooking oil: about 250.

4. Liquid naphthalene: 218.

5. Kerosene: 150.

6. toluene: 110.6.

7. water: 99.974.

8. alcohol: 78.2.