cobalt glass
回答 (1)
2007-05-29 8:13 pm
✔ 最佳答案
Cobalt glass is a deep blue colored glass prepared by adding cobalt compounds to the molten glass. It is appreciated for its attractive color and is also used as an optical filter in flame tests to filter out the yellow flame caused by the contamination of sodium.cobalt glass是一塊藍色玻璃片，在焰色測試可用到，用於隔除某波段的光。
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