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.
Price: $40.61
In Stock.
This item can only be shipped to schools, museums and science centers
Materials Included in Kit:
Hydrogen peroxide, 30%, 350 mL
Potassium iodide, 33.2 g
Filter paper, qualitative, 9 cm, 7
*Purchase Alert: This kit contains material that may need special disposal or handling. Please call Flinn if you have any questions about the disposal or hazards of this material.
MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.