How the blue drinking glass is made - RuixinGlass
2017-04-01 10:19:54
How the blue drinking glass is made - RuixinGlass
Ordinary glass cup is made of quartz sand, soda ash and limestone. It is a mixture of silicates that are not fixed. People first made out of the glass is some of the poor transparency, with some color of the small glass. Its color is not people consciously added to, but the raw materials used impure, mixed into the results of impurities. Then the color of the glass is only used to do decorations, the request is not high, people just accidentally produced a color glass. But today we require the color of the glass has a very high scientific requirements, which only opened the glass after the secret, can be made out.
After research, it was found that if the ordinary glass ingredients by adding 0.4 ~ 0.7% of the coloring agent, you can make the glass with a color. Coloring agents are mostly metal oxides. We already know that each metal element has its own unique "spectral characteristics", so different metal oxides can show a different color.
If these oxides are added to the glass ingredients, the glass is colored. Such as adding chromium oxide (Cr2O3), the glass is green; adding manganese dioxide (MnO2), the glass was purple; adding cobalt oxide (Co2O3), the drinking glass was blue, steel workers and welding workers to protect the eyepiece is to use this Made of glass.
Blue drinking glass is in the production of raw materials by adding cobalt oxide (Co2O3), so do the cup is blue.