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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: Korotkovap on September 06, 2019, 03:48:39 PM

Title: Flame test
Post by: Korotkovap on September 06, 2019, 03:48:39 PM

Why sodium overwhelms potassium in flame test? I heard that atomic emission plays a key role but I don't understand this. As far as I know yellow color has less energy than purple, so in my mind potassium should overwhelm sodium.

Title: Re: Flame test
Post by: chenbeier on September 06, 2019, 04:06:00 PM

If you have seen a fire of burning wood or paper, which colour do the flame normally has? Wood contain sodium and potassium minerals.

Title: Re: Flame test
Post by: Korotkovap on September 08, 2019, 02:40:08 PM

Yes, and why do I see only yellow?

Title: Re: Flame test
Post by: AWK on September 08, 2019, 04:55:50 PM

https://www.youtube.com/watch?v=3ScNyl943C4

Title: Re: Flame test
Post by: chenbeier on September 09, 2019, 03:25:51 AM

Quote from: Korotkovap on September 08, 2019, 02:40:08 PM

Yes, and why do I see only yellow?

The yellow colour outshine the blue one.