Free Shipping on Orders over $199*
FREESHIPJAN BUTTON.png

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.  

FLINN
Your Safer Source for Science
PAVO
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]

Acid–Base Indicator Strips

By: The Flinn Staff

Acid Base Indicator Strips
Acid Base Indicator Strips
Item #: AP7744 

Price: $4.49

In Stock [251 pcs available]. To view alternative items others have purchased, please see "Suggested Products" below.

Using the Acid–Base Indicator Strips is the simplest way to determine the pH of a solution. Litmus blue will turn red in the presence of acid while litmus red will turn blue in the presence of base.

See more product details

Product Details

Using acid–base indicator strips is the simplest way to determine the pH of a solution. Litmus blue will turn red in the presence of acid while litmus red will turn blue in the presence of base. Includes a ChemFax activity instructing students how to test the pH of common household solutions. Contains 100 strips of litmus blue and litmus red.

Specifications

Materials Included in Kit: 
Litmus blue test papers, vial
Litmus red test papers, vial