Iain Smellie
@iainsmellie.bsky.social
Teaching Fellow in organic chemistry at the University of St Andrews. Big fan of flower, fruit and vegetables as pH indicators #Gardenindicators and https://youtube.com/@gardenindicators?si=jweZCz6YqE1Qbgd
I got a nice #Gardenindicators gift this week from
@AlchemistAngus. A can of crushed pineapple! The anthocyanins in blackberry extract can be used to detect dissolved tin(II) ions in the pineapple juice. The anthocyanin/tin complexes give a lovely purple colour! #Chemsky
@AlchemistAngus. A can of crushed pineapple! The anthocyanins in blackberry extract can be used to detect dissolved tin(II) ions in the pineapple juice. The anthocyanin/tin complexes give a lovely purple colour! #Chemsky
March 7, 2025 at 10:14 AM
I got a nice #Gardenindicators gift this week from
@AlchemistAngus. A can of crushed pineapple! The anthocyanins in blackberry extract can be used to detect dissolved tin(II) ions in the pineapple juice. The anthocyanin/tin complexes give a lovely purple colour! #Chemsky
@AlchemistAngus. A can of crushed pineapple! The anthocyanins in blackberry extract can be used to detect dissolved tin(II) ions in the pineapple juice. The anthocyanin/tin complexes give a lovely purple colour! #Chemsky
A short video of the boiling methanol containing a small quantity of HCl and the geranium extract.
November 21, 2024 at 11:26 PM
A short video of the boiling methanol containing a small quantity of HCl and the geranium extract.
One of the things I learned about from #Gardenindicators on the old platform was the Shinoda test for plant flavonoids. Here are rutin and quercetin mixed in HCl and ethanol, then magnesium granules were added. These tests can be very colourful!
November 18, 2024 at 11:11 PM
One of the things I learned about from #Gardenindicators on the old platform was the Shinoda test for plant flavonoids. Here are rutin and quercetin mixed in HCl and ethanol, then magnesium granules were added. These tests can be very colourful!