Make Red Cabbage Indicator
Method for making purple cabbage indicator
Where you want to make purple cabbage indicator, you need to prepare purple cabbage, water, container and filter.
Take an appropriate amount of purple cabbage first, and carefully chop the leaves. The degree of shredding is appropriate to facilitate subsequent operations.
Place the chopped purple cabbage in the container for the second time, and pour an appropriate amount of water. The amount of water is preferably to be able to immerse the broken leaves of purple cabbage.
Then, stir the contents of the container well to make the purple cabbage and water blend, let it stand for a while, and stir occasionally to promote the leaching of its ingredients.
When the time is enough, filter out the residue of purple cabbage with a filter screen, and the remaining liquid, that is, purple cabbage indicator.
This indicator can be used to test the acidity and alkalinity of the substance. In case of acidic substances or a certain color, in case of alkaline substances, it will be other colors to identify the nature of the substance.
