Students can test solutions for acid or base determination. Easy-to-use red litmus paper turns blue for bases and blue litmus turns red for acids. Neutral pH paper will turn red if dipped into an acidic solution (pH below 7) or blue if dipped into an alkaline solution (pH above 7). 100 strips of each. Not for measuring the pH of natural waters, such as streams, rivers and lakes.
Features
- A simple way to determine without a doubt if a solution is acidic or basic, with a two other tests to confirm your findings
- No external reagents or chemicals needed for accurate testing of solutions
- Comes with 2 portable vials, each filled with easy to use, pre-cut strips
- No color chart needed to determine findings; these tests are designed for determining if the pH is above or below a certain level NOT giving a precise pH value
- Proudly made in America
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