Birdwatch Note Rating
2023-08-21 08:52:53 UTC - HELPFUL
Rated by Participant: 049E9E249CF132BD220934A2301413303C9F83D5CC0D861A6488BB5A903CCA42
Participant Details
Original Note:
Oxygen, water vapor, and various acids react with the copper and cause it to tarnish. This oxidation, combined with other chemical reactions, results in its natural bright reddish orange color to gradually turn into a deep chocolate brown color known as patina. https://www.thesprucecrafts.com/copper-color-grading-768388#:~:text=Oxygen%2C%20water%20vapor%2C%20and%20various,brown%20color%20known%20as%20patina.
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