When was it first realised that mercury used in the hat making industry was poisonous?

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When was it first realised that mercury used in the hat making industry was poisonous?

2007-01-15 03:00:47 · 4 answers · asked by Anonymous in Environment

4 answers

The element Mercury (in ionic or combined chemical forms) was recognized as a toxin since ancient times. Poison or not, it was allowed to be used in medicine and industry until relatively recent times.

The United States Public Health Service banned the use of mercury in the felt industry in 1941. Its use is still allowed in other areas.

2007-01-15 03:26:55 · answer #1 · answered by Richard 7 · 20⤊ 0⤋

When the " Mad Hater" visited his doctor.

2007-01-15 11:05:51 · answer #2 · answered by Anonymous · 0⤊ 1⤋

when people started dieing and falling seriously ill.

2007-01-15 19:05:32 · answer #3 · answered by Anonymous · 0⤊ 1⤋

when their workers became staggering wrecks ...

2007-01-15 11:26:24 · answer #4 · answered by Azureskies 3 · 0⤊ 1⤋