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Congo Red Test Paper
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Congo Red test paper is used to test narrow-range acidic solutions. Congo Red Test Paper is used in acid washes for metal plating where pH values are very low (pH 1.0-3.0).
- Remove one Congo Red test paper from the vial, being careful not to touch the strip anywhere other than where you grasp it with your fingertips.
- Dip the strip into the solution to be tested for 1-2 seconds and remove.
- The Congo Red indicator remains blue below pH 3.0, then gradually turns to a brilliant red above pH 5.2.
What you get
1 vial containing 100 strips of Congo Red Test Paper
|Age Group||12+ Years|