Non-luminous flame
- when the air hole of the Bunsen Burner is open
- when the air hole is open, more oxygen can enter the burner; therefore, hotter flame will be produced."
- its color is transparent or blue
- Blue flames are its hottest flames
Luminous flame
- is produced when the air hole is closed
- if the air hole is closed, oxygen cannot enter the burner; therefore, least hotter because the combustion is not fully complete with least oxygen
- A luminous flame has an outer of orange color and an inner of blue.
- Luminous flames emits more light than non-luminous flames.
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