* Intrinsic: The boiling point is an inherent property of a pure substance. It doesn't depend on the amount of substance present.

* Constant: Under a given pressure (usually standard atmospheric pressure), the boiling point of a pure substance is always the same.

* Identifiable: Each pure substance has a unique boiling point, allowing it to be identified and distinguished from other substances.

Example: Water always boils at 100°C (212°F) at standard atmospheric pressure, regardless of whether you're boiling a teaspoon or a gallon of it.

Important Note: While boiling point is a characteristic property, it can be influenced by factors like pressure. For example, water will boil at a lower temperature at higher altitudes where the atmospheric pressure is lower.