19 Patent: 3M - Minnesota Mining and Manufacturing Company (DIG) - Read it all the way to the AC. (patft.uspto.gov) posted 1 year ago by BrewSkiMAGA 1 year ago by BrewSkiMAGA +19 / -0 6 comments share 6 comments share save hide report block hide child comments Comments (6) sorted by: top new old worst You're viewing a single comment thread. View all comments, or full comment thread. ▲ 1 ▼ – BrewSkiMAGA [S] 1 point 1 year ago +1 / -0 "1. A process for preparing adrenochrome which comprises oxidizing adrenaline or a salt thereof with a persulfate in an aqueous medium at a pH in the range 4 to 8 in the presence of one or more water-soluble salts of bismuth. " permalink save report block reply
"1. A process for preparing adrenochrome which comprises oxidizing adrenaline or a salt thereof with a persulfate in an aqueous medium at a pH in the range 4 to 8 in the presence of one or more water-soluble salts of bismuth. "