BEWARE OF WET CHEMICAL BOTTLES!!!
mtang at stanford.edu
Fri May 11 16:30:43 PDT 2007
Sigh.... It looks I will have to make good on a threat... Reports are
that this morning was OK. But this afternoon, THREE sulfuric acid
bottles were found dripping with acid on the outsides of the bottles.
Two victims, oops, I mean, "labmembers" were chosen by a nonlabmember
third party to be informed that they will be helping with bottle washing
Stop endangering our staff. STOP IT!! Be careful with your chemical
Mary Tang wrote:
> Dear wet bench users --
> The Stockroom staff has brought to our attention the fact that
> sometimes, when they remove the empty bottles from the chemicals
> passthrough, they are wet -- on the OUTSIDE of the bottles.
> Sometimes, the liquid feels thick and viscous. Sometimes, the liquid
> smells very sharp.... This is completely unacceptable.
> It appears that some people are becoming careless in using chemicals.
> This careless behavior is endangering others -- not only our staff,
> but anyone who may be using the chemicals carts or chemicals pass
> through which may also become contaminated by the wet bottles.
> We only know too well that it is hard to find who is doing this -- and
> often the culprit doesn't even realize what he/she is doing.
> So please, please, PLEASE make sure to pour chemicals slowly and
> carefully to avoid splashing. If you do manage to drip chemical on
> the outside of the bottle, take it to wbgaas, where there is a large
> sink. Place it on the holey deck and spray it down with the DI hand
> sprayer. Use pH paper, if you like, to ensure the bottle is
> thoroughly rinsed. Make sure you screw the bottle cap firmly back
> onto the bottle, even on empty bottles --but especially on with
> chemicals. Make sure to place the bottle back in the correct
> location. If you have any questions, please ask a staff member.
> Remember that this is a shared facility -- everything you do has the
> potential to affect other lab and staff members.
> So that was my plea for sanity.... Now, here's the threat... The
> next time our stockroom staff is exposed to chemicals on the outside
> of bottle, I will randomly select two people from the labmembers who
> have enabled any wet bench using that chemical during the previous 24
> hours -- who will help our stockroom staff run the bottle washer to
> clean empty bottles. Yes, I will even qualify them to use the bottle
> wash on Coral....
> Thanks for your attention --
Mary X. Tang, Ph.D.
Stanford Nanofabrication Facility
CIS Room 136, Mail Code 4070
Stanford, CA 94305
mtang at stanford.edu
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