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Re: Organic Chemisty class
From: SB (anonymous@obgyn.net)
Fri, 28 Feb 2003 23:05:02 -0600 (CST)
Thanks a lot Katya! You have been very helpful.
At Fri, 28 Feb 2003, Katya wrote:
>
>Dear SB,
>
>Yes, working in the hood would actually help because the density of
>vapors from the reaction you are running will be greater than that of
>neighboring reactions. The hood will suck most of those vapors up -
>especially valuable is you spill something. Thus, working in the hood,
>you are eliminating the primary exposure threat.
>
>Also, since most students will not be working in hoods, you will be
>further away from them, and concentration of chemicals from a point
>source is inversely proportional to the distance in the third power
>because molecules can diffuse in any direction, and most will diffuse
>away from you.
>
>Hmmm... let me write an equation, that will make more sense:
>
>[concentration where you are] = [initial concentration]/(distance)^3
>
>Another thing you want to be very careful with is the mercury
>thermometers if you use any. Ask your TA to show you safe handling
>technique. They tend to be fragile. I had a student who cut himself
>with a broken mercury thermometer, thus injecting some mercury into his
>bloodstream. No big deal for an adult as long as exposure is minimal,
>but a very different situation for a pregnant woman.
>
>Best wishes and I think you'll be fine as long as you are open with your
>TA/staff and careful.
>
>:)
>
>--
>Katya
>
>At Fri, 28 Feb 2003, SB wrote:
>>
>>Thanks Katya and Julie. I wasn't sure if I would get the answers on
>>this forum so I am really glad you replied. Would experimenting under
>>hood benefit since other students in the class will be performing the
>>same experiment?
>
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