Today I Learned (TIL)

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You learn something new every day; what did you learn today? Submit interesting and specific facts about something that you just found out here.

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TIL metal or blood by itself doesn't have a smell. The "metallic" smell of blood is instead derived from Fe2+ (iron) ions in metal/blood which react with fatty acids in sweat, forming 1-octen-3-on... (cen.acs.org)

submitted 1 month ago by bOt@zerobytes.monster to c/todayilearned@zerobytes.monster

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The original post: /r/todayilearned by /u/zahrul3 on 2025-01-29 11:40:57.

Original Title: TIL metal or blood by itself doesn't have a smell. The "metallic" smell of blood is instead derived from Fe2+ (iron) ions in metal/blood which react with fatty acids in sweat, forming 1-octen-3-one, which gives the characteristic "metallic" smell of metals and blood.

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