Red cabbage contains a pigment molecule called flavin (an anthocyanin)
Red Cabbage Juice: A Homemade pH Indicator
WARNING do not drink any of the liquid.
I used 2 teaspoons (28g) for the sugar, baking soda, sanitizer, lemon juice. Make sure to stir until dissolved.
INTRODUCTION TO THE CABBAGE PH INDICATOR
Red cabbage contains a pigment molecule called flavin (an anthocyanin). This water-soluble pigment is also found in apple skin, plums, poppies, cornflowers, and grapes.
Red cabbage juice contains a natural pH indicator that changes colors according to the a acidity of the solution. This is very easy to make and exhibits a wide range of colors.
You can make it a couple different ways, one by chopping up the red cabbage into strips adding 2 cups of hot water and then blending it and then pouring into a coffee filter. This is give you a dark purple indicator like I used.
Or you can chop up the red cabbage into strips and pour hot water with the strips (NO Blending). This will give you a dark blue color indicator. Both work.
Very acidic solutions will turn anthocyanin a red color. Neutral solutions result in a purplish color. Basic solutions appear in greenish-yellow. Therefore, it is possible to determine the pH of a solution based on the color it turns the anthocyanin pigments in red cabbage juice.
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SHARE or THUMBS UP if you like this experiment. Thanks for watching.
i did this for my science fair
So an interesting pH indicator experiment. Big Thumbs up # 12
pH Indicator Experiment. That's a very the terrific video! Big Thumbs up # 10
This was so good!!! 🙂 keep one rocking!!!
Super cool LIKE 10
Muito bom. Like!
Also, are there any ways I can contact you in person? Because I will need some help with the experiment and some other calculations based off of this experiment. Please email me if you see this! My email: qq1326888741@gmail.com
Thank you!!
Hey man, I am going to make a video on this experiment recently, is it ok if I link this video to mine? BTW, I am going to post it on my other channel that I do with my friend, it is actually my IB Chemistry Internal Assessment. My other channel's link is:https://www.youtube.com/channel/UCM8Nwe3jb7rxWMP_LvmaOhA Thank you for taking your time reading this!!
Very nice
wow pretty cool! I left a HUGE like!
Great video! well done ! Thanks for sharing :Have a great week !!! (◠‿◠)
Big Like!
Another awesome educational video, great job!
so interesting, my friend, always enjoy watching, thumbs up
Fabulous job