Generally speaking, the nature of water in 0 ℃, will form ice called natural ice, usually by artificial refrigeration method made of ice, known as artificial ice or mechanism ice.
The physical properties of ice
A, ice is a transparent crystal structure of the six square crystal system;
B, pure water at normal atmospheric pressure, to 0 ℃ will freeze;
C, if the water contains impurities, pressure increases, water icing point will be reduced;
D, the melting point of the ice is the freezing points of water;
E, as the atmospheric pressure rises, the melting point of the ice also rises;
F, the melt heat of the ice is 331.6~335.7kj/kg, usually take 335 kj/kg.