# Question #1d40d

Pure water? No. At the pressure required for water to be able to boil at $0 \text{°C}$ it cannot exist as a liquid.
As you can see, there is no point on that line where the temperature is $0 \text{°C}$. At that temperature water can only be a solid or a gas at pressures low enough for boiling to possibly occur. Water can turn to a gas at $0 \text{°C}$, but not from a liquid so it is technically sublimation, not boiling.