How Is Litmus Paper Made?

Answer

Industrially made litmus paper is made by infusing paper with lichens (algae). These lichen naturally react to acids and alkali. You can make your own litmus paper, using red cabbage. Chop the red cabbage with a sharp knife. Put it in a food processor and grind it. Add a small amount of water, and grind the cabbage for a short time more. Pour the blue liquid into a clean glass. Soak some clean blotter paper in the blue liquid. It is very important that the blotter paper is clean and free of an other substances. Let the paper dry out. Cut the resulting blue paper into squares of strips.
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Wood and Plant As the name implies, paper is the primary ingredient in litmus paper. The wood used to make the paper is treated with solvents to get rid of extraneous substances such
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