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The phrase "cabbage indicator" refers to the use of red cabbage juice to indicate the pH of a solution. For red cabbage contains the pigment molecule ka flavin, which is an anthocyanin. In fact, anthocyanin also is responsible for the reds of certain tree leaves such as sassafras [Sassafras albidum] and sourwood [Oxydendrum arboreum]. Anthocyanin has the advantage of being a water soluble pigment. Its color varies depending upon the acidity/neutrality/alkalinity of the solution in which it's found. For example, the anthocyanin pigments in red cabbage juice turn red in acidic, purplish in neutral, and greenish-yellow in basic solutions.
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∙ 15y ago
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What does red cabbage indicator smell like?
The red-cabbage indicator smells like cabbage, nothing else...
What fruit and vegetable can you use as a pH indicator?
cabbage juice is a natural pH indicator
Why is the universal indicator more useful than the red cabbage?
The universal indicator is better than the red cabbage indicator because the universal indicator has a wider range of pH that it can explain why a substance is acidic or basic. The red cabbage indicator only tests the substance if it is an acid or a base. Also, the universal indicators are made carefully and it is manufactured in a precise manner so the results are very reliable. Red cabbage indicators will vary in concentration which could cause errors to occur in determining the pH of a substance.
What makes a good pH indicator?
Red Cabbage extract
Why does cabbage indicator change color when you exhale into it?
Because of the carbon dioxide that is donated to it!
What does red cabbage indicator smell like?
The red-cabbage indicator smells like cabbage, nothing else...
Cabbage juice is a?
...indicator. (Or, the juice of a cabbage. :) )
Is red cabbage an artificial indicator?
No, it is natural, coming from "red cabbage".
What does red cabbage indicator do that other indicators don't?
Nothing, but red cabbage is a simple pH indicator at home (red in acidic solutions).
What is a good homemade indicator?
Red Cabbage
What fruit and vegetable can you use as a pH indicator?
cabbage juice is a natural pH indicator
What is a natural pigment that can act as an indicator?
red cabbage is the natural pigment that can act as an indicator.
What is the name of the method used to separate the cabbage water indicator from the pieces of red cabbage?
Filtration
Is cabbage juice an acid base or neutral?
it is an indicator.
When making red cabbage indicator why do you grind the cabbage rather than stir it?
It is important to release a liquid.
What vegetable is used to make an indicator?
Red Cabbage and Beetroot can be used but what else?
What are artificial indicator?
An artificial indicator is one that is chemically made and you cannot create from Natural Resources e.g. cabbage juice
