Polarized explorations part 2

Applause IconMar 20, 2018 • 11:24 AM UTC
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Mitali

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Hello everyone,
There are going to be tons of pics in this post so I better limit the words. I have foldscoped 3 compounds here – Citric acid , L-cysteine and Potassium dichromate.
Recrystallized Citric acid
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Just while I was foldscoping these citric acid crystals an orange caught my attention!
I thought Why not try locating citric acid in orange peels!This thought really excited me
Finally after some negotiations with mom she agreed to let me foldscope the orange if I promised to eat it first
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This is a section of the peel..some regions appear birefringent (probably because of citric acid) while some appear normal
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The orange pulp sowed these clusters of cell like structures which also appeared birefringent
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Thanks to the high melting points of cysteine and potassium dichromate I have a burnt thumb. lesson learnt – you cannot use a lighter to melt all compound.
I will try recrystallizing these with the help of a burner next time
until then, enjoy these pictures
Edit 1: Embedding Instagram posts seems to not have worked so updating the post with pictures.
Potassium Dichromate
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L-cysteinine showed hexagonal crystals!! It was a joy seeing such perfect hexagons
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~Have fun Foldscoping!
Mitali Patil
Second Year Undergrad
Ramnarain Ruia Autonomous College,Mumbai.

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