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Previous by Date: Subject: Re: Compressed Gas Demo Date: Wed, 11 Aug 2010 17:29:58 +0000 Author: "Kohler, Chris E" |
Next by Date: Subject: Re: Old Formalin With Lots of Precipitate Date: Wed, 11 Aug 2010 12:46:50 -0500 Author: tanis.marquette**At_Symbol_Here**HEXION.COM |
Colleagues,
I wondered if you’ve run into this previously:
A physical plant person brought me a pint reagent bottle labeled 37% Formaldehyde this morning that he found while remodeling a workspace.
The
bottle is the original
It’s about =BE full, and appears to have been opened.
About 50% of the volume of the bottle is a white precipitate, with about =BC volume of clear liquid above.
The purchase date on the label is smudged, but it appears the bottle is at least 35 years old.
As I remember, aldehydes do undergo a slow polymerization reaction. I wouldn’t expect an aqueous solution to form peroxides.
Thoughts?
Dan
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