why is a cobalt glass used when observing the color of the flames of potassium??

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2006-11-15 01:23:54 · 2 answers · asked by anast_ycrh 2 in Science & Mathematics ➔ Chemistry

The flames can damage your eyesight when viewed with the naked eye (because they are so bright), so cobalt is used to protect your eyes.

2006-11-15 01:27:28 · answer #1 · answered by gt6985 2 · 0⤊ 0⤋

so you can see it. if you try it without the glass the majority of the color is from Na which is on everything

2006-11-15 04:34:03 · answer #2 · answered by shiara_blade 6 · 0⤊ 0⤋