2006-12-02 16:57:32 · 4 answers · asked by koolbreeze 1 in Science & Mathematics ➔ Other - Science
Colored glasses are obtained by adding certain metallic oxides to the molten glass. For eg. Ferric oxide-Brown, Chromic oxide-Green, MnO2-Purple, and Cobalt oxide-blue color in glass.
2006-12-02 17:01:33 · answer #1 · answered by Genius 2 · 0⤊ 0⤋
By addition of certain metals in the melt, which impart colors to the cooled glass.
2006-12-02 17:00:31 · answer #2 · answered by Scythian1950 7 · 0⤊ 0⤋
While the glass components are molten, they add substances like gold for red glass, cobalt for blue and etc.
2006-12-02 16:59:43 · answer #3 · answered by Tony T 4 · 0⤊ 0⤋
chemicals are added to the glass.
Lead can make glass yellow (althout it will make it dangerous)
Copper can be added to make it blue
I think magnesium makes glass red
i don't know any others.
2006-12-02 16:59:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋