i distilled pyridine and also cover with aluminum foil and placed in -30C but it changes color after sometime. Why 4-vinyl pyridine changes color ?

when i distilled the pyridine its color is completely transparent. I am using 4-vinyl pyridine under nitrogen flow. But after sometime it changes the color. i know its photo sensitive thats why i...

26 July 2018 7,896 0 View