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Iodine and Povidone - A Chemistry Lesson
Over the years, we have seen many mentions of povidone-iodine. This video is the first time I have ever come across a proper explanation as to why povidone-iodine is chosen!
It then continues with its aim of extracting pure iodine from povidone-iodine.
The video could be very boring if you are
Wool Blend Jumpers
I had a nasty day long asthma flare today, which is unusual at this time. In winter I normally have daily short, sharp attacks, very unpleasant but responsive to salamol.
This attack unusually took an hour coming on, so we did all the normal things, air purifiers on, clear the bins etc. Then it was