The melting point of purified water has been measured as 0.002519 ± 0.000002 °C, see Feistel, R.; Wagner, W. (2006). "A New Equation of State for H2O Ice Ih". Journal of Physical and Chemical Reference Data35 (2): 1021–1047. doi:10.1063/1.2183324. Bibcode: 2006JPCRD..35.1021F.
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The melting point of purified water has been measured as 0.002519 ± 0.000002 °C, see Feistel, R.; Wagner, W. (2006). "A New Equation of State for H2O Ice Ih". Journal of Physical and Chemical Reference Data35 (2): 1021–1047. doi:10.1063/1.2183324. Bibcode: 2006JPCRD..35.1021F.