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Transfer buffer with methanol spill

chemicals

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#1 Artemis2007

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Posted 10 October 2016 - 01:13 PM

So I foolishly spilled a small amount (maybe 100-200 ml?) of transfer buffer with 20% methanol on a cloth chair. I absorbed as much as possible with paper towels. Is the chair safe to use? Can I treat it with anything to mitigate whatever methanol is still present?



#2 bob1

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Posted 10 October 2016 - 01:47 PM

Depending on the transfer buffer, but there are usually no hazardous reagents in transfer buffer, other than a little SDS. Methanol is not absorbed through skin, but might dry the skin out a little if poured over the skin at high concentration (e.g. 50% or more). The liquid will also evaporate and leave no residue other than the glycine and tris in the chair.

 

Long story short: there is no problem.



#3 El Crazy Xabi

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Posted 10 October 2016 - 02:32 PM

bob1, methanol does permeate the skin. Indeed, repeated contact exposure, e.g. industrial environments, result in similar health impact as ingestion or vapour inhalation.

There is even a paper from 1931 about it

http://pubs.acs.org/...021/ie50260a019

 

Not a big deal in this case, but care should be taken if you use it very often



#4 bob1

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Posted 11 October 2016 - 08:26 AM

Well, you learn something new (or old in this case)...Looks like the absorption rate is fairly low and typically measured using 100% methanol. Interesting, some good procrastination material here.



#5 Artemis2007

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Posted 11 October 2016 - 12:47 PM

Methanol is labeled hazardous, that's why I was concerned. I ended up stashing the chair in an unused fume hood for the time being. 



#6 mdfenko

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Posted 14 October 2016 - 04:09 AM

yes, methanol can be hazardous but it will evaporate rather rapidly. you have nothing to fear when the chair is dry.


talent does what it can
genius does what it must
i do what i get paid to do





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