Highlights of the Luminol Lab
3-nitrophthalhydrazide + sodium hydrosulfite --> luminol
Adding the 3-nitrophthalhydrazide to 10% NaOH!
Some people's solutions were yellow - the last two had the sodium hydrosulfite added. The very last was also acidified.
Intriguing Brain Benders - Questions for Thought
2. What does the acid in the reaction accomplish, after adding the sodium hydrosulfite?