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Chemical Formula For Glass Components
The recipe for glazing is the wonder of ancient times. Its production is exquisite and cherished by the world. To understand the formation of glazing, one must first know the chemical formula and composition of it.
The general chemical formula of glazing is about\ (Na_2O · CaO · 6SiO_2\). In this formula,\ (Na_2O\) is the transformation of soda ash (sodium carbonate\ (Na_2CO_3\)) in firing. In the system of glazing, it can reduce the melting point of quartz sand, make firing easy, and increase the transparency and luster of glazing. \ (CaO\) is often calcined from limestone (calcium carbonate\ (CaCO_3\)), and its work is to increase the chemical stability and mechanical strength of the glass, so that the glass is durable and not easy to break. And\ (SiO_2\), that is, quartz sand, is the main structure of the glass, mostly taken from natural ores, its purity is better, giving the glass hard and transparent energy.
The composition of the glass is various elements, which complement each other.\ (Na_2O\) Although it can reduce the melting point and increase the luster, it is easy to make the glass deliquescent in excess;\ (CaO\) strengthens its quality, and if it is too much, it will cause the glass to be brittle and easy to break;\ (SiO_2\) is the main trunk, and if it is less, it will not form its shape. Therefore, when craftsmen make glazed glass, they must carefully control the proportion of various ingredients, and they must investigate every detail.
The craftsmen of ancient times, in the system of glazed glass, have been studying the physical properties for many years. Observe the changes in the heat, observe the differences in ingredients, and pass on the method with their hearts, generation after generation. Although I did not know at that time that the chemical method was as clear as later generations, with experience and wisdom, it can also become a beautiful glazed utensil, passed down through the ages, lamented by future generations.
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