1) The pyrophoric residue in the syringe should be neutralized by rinsing with water, an alcohol or acetone.
2) I never use plastic syringes as I would never trust the plastic to not be dissolved by the reagent or melt if a fire did occur. I always use glass syringes.
Just my sequestered $0.02 worth.
Professor of Chemistry
Oklahoma City University
Sent: Thursday, March 07, 2013 8:53 AM
I have a question from our Chem dept about nButyl Lithium &
syringes after I forwarded them the CEN blog on safer syringes. http://cenblog.org/the-safety-zone/2013/02/engineering-safer-syringes/
The lab's SOP calls for not reusing their syringes & only filling them 50%. I asked them to write in more clearly that they are to dispose in sharps container.
The questions I'm hoping any of you with similar hazards can help with:
1. Is there enough residual material in the syringe that it could be hazardous?
2. Should there be a sharps container stored in the fume hood for the exclusive use of these syringes (avoiding incompatible material that may be left in the syringe)
3. If not a sharps container, what/how does your labs dispose of these syringes?
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