Hydrogen Sulfide danger
12-Oct-94 08:50:46
Sb: Hydrogen Sulfide danger
Fm: Michael Sternberg 76147,42
To: Doug Mitchell 70621,702
H2S (AKA Hydrogen Sulfide) is deadly in concentrations as low as 700 ppm.
Olfactory paralysis and loss of detection commences around 100 pmm. Just
'cause you don't smell it doesn't mean it's not thee. I work in a plant that
handles in excess of 60 tons/day of H2S. That makes for a lot of ppm's in
anyone's book. Lead acetate tape is a useful indicator of H2S at low levels.
It could save your nose. I don't know of a simple, safe qualitative test for
arsenic.
I just have to upload the MSDS on chemicals typically encountered by
rockhound/geologist types. This is a good reminder for me, thanks!
Michael