water of crystallisation การใช้

It is an odorless, white, crystalline substance containing about 5 % water of crystallisation.
The first stage starting at about 220 癈, is the release of the four molecules of water of crystallisation.
Only four of the six water molecules in the formula are bound to the nickel, and the remaining two are water of crystallisation.
Heat is required to dissolve the salt in its own water of crystallisation and it is this heat that is released when crystallisation is initiated.
The replacement of the copper liner of conventional shaped charges first by gelled water, then by low melting point salts with high proportions of water of crystallisation and finally with thin-walled plastic containers of water, provided a simple means of generating jets of water of much higher velocity and with correspondingly enhanced penetrating power and disruptive capability than was possible using gun barrel technology.