How can salt (NaCl) ever possibly form sodium silicate in the process of salt glazing (pottery)? isn’t the bond in salt way to strong for something like that to happen?

Question

How can salt (NaCl) ever possibly form sodium silicate in the process of salt glazing (pottery)? isn’t the bond in salt way to strong for something like that to happen?

In: 2

Answer 1

Heat.
The heat breaks the bonds and allows new ones to form. Salt glazing requires around 900°C to work. Cone 6 -10 if I remember rightly. Throw in a reducing atmosphere and you have the ingredients to break those bonds and form new ones.