Grayson
Conspiracy Cafe
- Messages
- 1,117
1841 The term ‘porphyrin comes from the Greek word, porphyus, meaning reddish-purple. It was first thought that the reddish color of blood was from iron. One early scientist performed an experiment to prove that this was not the case. He washed dried blood with concentrated sulfuric acid to free the iron. He then treated it with alcohol and the resulting iron free residue took on a reddish purple color though it contained no iron compound
Source: History of Porphyria
I didn't read too much of this, nor check its veracity. I simply googled it.