Ice Point

The ice point, also known as the freezing point of water, is the temperature at which water naturally transitions between its liquid and solid states, which is 0°C (32°F) under standard atmospheric pressure. It serves as a fundamental reference in temperature measurement and calibration of thermometers. At this temperature, water begins to freeze, forming ice, and this process depends on pressure; at higher pressures, the freezing point can vary slightly. The ice point is important in scientific and industrial contexts for precise temperature calibration and understanding phase changes of water.