Difference between revisions of "PH test strip"
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Revision as of 06:48, 5 December 2017
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A pH test strip, also called pH strip, pH test kit, strip paper, universal indicator test kit among other dozen names, is a type of testing material which, when immersed in a solution, displays smooth color changes over a pH value range from 0 to 14, to indicate the acidity or alkalinity of solutions.
Contents
General
pH strips come in various forms, the most common form involves a plastic case with a colored palette indicating the color of the indicator at different pH values. Some have three rolls of pH paper, each for different pH range (acidic, neutral, basic), while others have a series of dots on a paper strip, which display the pH level via various indicators.
Availability
pH test strips can be bought from most hardware stores, as swimming pool water pH test kits. They can also be bought online.
DIY pH strip
A simple ph test kit can be made by carefully adding bits of prepared universal indicator on a strip of paper and using a printed image of the indicator at various pH levels as reference.
See also
- Litmus
- pH indicator
- Universal indicator
- Anthocyanin for easy and cheap DIY test strips
