Free shipping on orders over $199       imaget3joa.png

Order early for pre-holiday delivery. Flinn (or Educational Innovations) 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. 

Your Safer Source for Science
All-In-One Science Solution
Your Safer Source for Science
;
Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax
Email [email protected]
Item #: AP1687 

Price: $14.95

In Stock.

The Hydrion One-Drop pH Indicator Kit provides the simplest and most convenient method of pH estimation. The kit includes one sample tube with cap, a bottle of indicator solution and a laminated color chart.

See more product details

Product Details

The indicator solution method provides the simplest and most convenient method of pH estimation—simply add a few drops of this concentrated indicator solution to the desired solution, compare with the provided color chart, and you have a pH reading! The indicator color changes are vivid—from deep red in acid solutions through green in neutral solutions to blue violet in basic solutions. The indicator will indicate pH values from 1 to 11 with a different color for each pH unit. Kit includes one sample tube with cap, 24-mL bottle of indicator solution and laminated color chart, packaged in a sturdy plastic case.