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Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.
DC0667
Price: FREE
If you like to perform holiday demonstrations, this one’s for you! In this demonstration, a flask containing a clear solution is shaken, turning the solution into a pink valentine solution. Then, by allowing the solution to sit undisturbed, it will fade back to colorless. The cycle can be repeated many times.
1-800-452-1261
