How to Make an Indicator Using Hibiscus Petals
Cut approximately 10 mature hibiscus flowers.
Remove the stigma, and detach the leaves, so as to have only the red petals remaining.
Put them in a container, and pour approximately 6ml of ethanol or surgical spirit; the latter works best.
Crush the petals using an appropriate implement, such as a mortar and pestle.Crush until all of the liquid has been extracted from the petals.
Filter the solution, and you have the reddish indicator ready.
View results in sunlight if possible.Check for these results:
- Acid--> towards highlighter red,
- Base--> towards dark green (almost black).
QuestionHow do I make an indicator using a local flower?wikiHow ContributorCommunity AnswerThe same basic way. Any brightly colored part of a plant can be used as an indicator.Thanks!
QuestionWhat type of natural base can I use to test for alkalinity?wikiHow ContributorCommunity AnswerAmmonia water, sold in 1/2-gallon jugs in the grocery store, is basic and will correctly test the indicator.Thanks!
QuestionWhich property of hibiscus enables it to act as a pH indicator?wikiHow ContributorCommunity AnswerHibiscus contains anthocyanin. This is a substance that determines a plant's color, i.e. red, pink, violet, etc.Thanks!
QuestionHow long does it take to make an indicator using hibiscus flowers?wikiHow ContributorCommunity AnswerDepending on your speed, it should take less than half an hour.Thanks!
QuestionWhat is an indicator when referring to using hibiscus petals?wikiHow ContributorCommunity AnswerAn indicator tells you whether the substance is an acid or base.Thanks!
QuestionAfter the juice is ready, what will happen if we add lemon juice to it?wikiHow ContributorCommunity AnswerIt will turn magenta (dark pink) or highlighter red, as mentioned above.Thanks!
Who invented or created this study? I really need it for my report. Thanks
How this China rose indicator prepared?
How can you prepare a China rose indicator?
Can we use other products other than ethay/surgical sprit?
What is the colour change of the indicator in NaOH and HCL?
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Date: 12.12.2018, 12:00 / Views: 45492