Potassium Carbonate From Banana Peels
Summary
TLDRIn this video, the creator demonstrates an affordable method to extract potassium carbonate from banana peels. They purchase cheap bananas, peel and dry them, then burn the peels to ash. After dissolving the ash in water and filtering, they obtain a basic potassium carbonate solution. Further purification steps yield a whiter product, resulting in 53 grams of relatively pure potassium carbonate from 954 grams of dried peels. The process showcases a DIY approach to chemical reagent extraction.
Takeaways
- đ The video is about extracting potassium carbonate from banana peels.
- đž Bananas were purchased at a very low price of 5 cents per pound.
- đŠ The bananas were frozen, baked, and eaten, with peels set aside for extraction.
- đ„ The peels were dried in an oven at 200°F, then crushed into a powder.
- đŹ A total of 954g of dried peels were obtained and subjected to heating and burning.
- â±ïž The banana peels were carbonized using a propane torch and left to burn overnight.
- đ The next morning, the ashes were transferred and weighed, yielding 156g.
- đ§ Approximately 500mL of water was used to dissolve the potassium carbonate from the ashes.
- đ The solution was filtered and the insoluble ash was rinsed away.
- đŹ The solution was evaporated to dryness, resulting in a dark-colored potassium carbonate.
- đ§Ș Further purification steps were taken to obtain 53g of relatively pure potassium carbonate.
- đ The banana peels were found to contain about 5.5% potassium carbonate by weight.
Q & A
What is the purpose of removing potassium salts from bananas?
-The purpose is to extract potassium carbonate, which is a useful reagent for various chemical reactions and can also be used to produce potassium hydroxide.
How much did the bananas cost per pound?
-The bananas cost 5 cents per pound.
What method was used to dry the banana peels?
-The banana peels were dried in batches in an oven set to around 200°F.
How much dried banana peels were obtained after drying?
-A total of 954 grams of dried banana peels were obtained.
How was the potassium carbonate extracted from the dried banana peels?
-The dried banana peels were heated and burnt to ash, then the ash was dissolved in water and filtered to extract the potassium carbonate.
What was the weight of the ash obtained after burning the banana peels?
-The ash weighed 156 grams.
How was the potassium carbonate solution filtered to remove insoluble ash?
-The solution was vacuum filtered to remove the remaining insoluble ash.
What was the pH of the potassium carbonate solution?
-The pH of the solution was quite basic, as expected for a potassium carbonate solution.
How was the potassium carbonate obtained after evaporating the solution?
-The potassium carbonate was obtained by evaporating the solution to dryness on a hot plate.
What was the final weight of the relatively pure potassium carbonate obtained?
-The final weight of the relatively pure potassium carbonate obtained was 53 grams.
What percentage of potassium carbonate is present in the banana peels by weight?
-The banana peels contain about 5.5% potassium carbonate by weight.
What is the potential use of potassium carbonate mentioned in the script?
-Potassium carbonate can be used for different reactions and can also be used to produce potassium hydroxide by thermal decomposition.
Outlines
đ Potassium Extraction from Banana Peels
The video begins with the host introducing a project to extract potassium carbonate from banana peels, a useful reagent. They mention purchasing bananas at a low cost and plan to freeze and eat the bananas while using the peels for the experiment. The peels are peeled off and dried in an oven at 200°F to remove moisture without burning. Once dried, they are crushed into a powder. The dried peels are then carbonized using a propane torch and left to burn overnight. The next day, the ashes are weighed and mixed with water to dissolve the potassium carbonate. After filtering and rinsing, the solution is evaporated to dryness, yielding a dark-colored potassium carbonate. To purify it, the substance is redissolved, filtered through activated charcoal, and re-evaporated to obtain a whiter potassium carbonate powder. The final yield is 53g from 954g of dried peels, indicating a 5.5% potassium carbonate content. The host expresses intent to use this potassium carbonate to produce potassium hydroxide in a future video.
Mindmap
Keywords
đĄPotassium Carbonate
đĄBanana Peels
đĄDehydration
đĄCarbonization
đĄAsh
đĄDissolving
đĄVacuum Filtration
đĄpH
đĄEvaporation
đĄImpurities
đĄActivated Charcoal
Highlights
Introduction to the process of extracting potassium carbonate from bananas
Bananas were purchased at an extremely low price of 5 cents per pound
The plan to freeze and bake the bananas for consumption
Banana peels are rich in potassium salts, specifically potassium carbonate
Peeling and drying the banana peels in batches at 200°F
954 G of dried banana peels were obtained after drying
Dried peels were crushed into a powder for the extraction process
Heating and burning the dried banana peels to ash using a propane torch
Ashes were left overnight to ensure complete burning
156 G of ash was obtained after burning
Dissolving the potassium carbonate in water and heating the mixture
Using a vacuum filter to remove insoluble ash from the solution
The solution was found to be quite basic, indicating the presence of potassium carbonate
Evaporation of the solution to obtain potassium carbonate
70 G of impure potassium carbonate was obtained initially
Further purification using activated charcoal to reduce colored impurities
Final yield of 53 G of relatively pure potassium carbonate
Potassium carbonate content in banana peels is approximately 5.5% by weight
Potassium carbonate can be used to produce potassium hydroxide
A separate video is planned to demonstrate the production of potassium hydroxide
Conclusion and farewell, indicating more projects to come
Transcripts
hey guys and welcome back to another
video and today we're going to be
removing some potassium salts from these
bananas specifically pottassium
carbonate which is very useful reagent I
found these bananas for 5 cents a pound
very very cheap so I picked up a whole
bunch of them and I'm going to just
freeze all the bananas and bake them and
eat them and stuff over time but all the
peels contain lots of pottassium salt so
we're going to go ahead peel all these
and then dry the skins and extract the
pottassium salts from them so first
we'll go ahead and peel all of these
bananas okay as you can see I finished
peeling all of the bananas and we have
this massive mound of banana peels here
so going to put them on a baking sheet
and dry them in batches until we have
all of these completely dried the oven
was set to around 200° F to dehydrate
the peels without burning them once
fully dry the peels were removed and
crushed into a powder in a blender in
total 954 G of the dried peels were
obtained to remove the pottassium
carbonate the dried banana peel must be
heated and burnt to an ash a large
propane torch was used to ignite the
banana peels in a steel pan while
stirring them with a long Steel Rod once
the banana peels were carbonized the
coals were left overnight to fully burn
the steel pan was placed on insulated
fire bricks to prevent the pan from
cooling down too much occasionally the
ashes were stirred to incorporate more
of the charcoal into the ignited
section the next morning the coals had
finished burning completely so the ashes
were transferred to a beaker and weighed
the ashes weighed 156 G to dissolve the
pottassium carbonate approximately 500 m
L of water was added the mixture was
ground in blender to ensure all the
potassium carbonate could dissolve and
then it was heated and stirred for
approximately 30 minutes next the
solution was vacuum filtered to remove
the remaining insoluble Ash the ash was
rins twice with water and then the
potassium carbonate solution was added
to a large Beaker the pH of the solution
showed it was quite basic as expected
the solution was transferred to a
crystallizing dish on a hot plate and
evaporated to dryness the potassium
carbonate obtained was a bit dark in
color indicating some likely impurities
the material was scraped from the dish
and weighed 70 G the impure potassium
carbonate was redissolved in 200 M of
water and
filtered some activated charcoal was
added to the solution to help reduce
colored impurities and then the solution
was filtered again after boiling off the
water the potassium carbonate obtained
was noticeably whiter this was once
again scraped off transferred to a
blender and Blended to a
powder in total 53 G of relatively pure
pottassium carbonate was obtained from
the 954 G of dried banana peels this
means that the banana peels contain
about 5.5% potassium carbonate by weight
potassium carbonate is a useful reagent
for different reactions and can also be
used to produce potassium hydroxide by
thermal decomposition to the oxide and
then rehydration which I plan to do in a
separate video I hope you enjoyed and
I'll see you in a future project okay
bye
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