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@acsundergrad
We have just made some metallic silver from scrap, approx. 250g with a ~99,99% purity.
It was melted in a ceramic crucible with an oxygene/methane torch, under circa 1h. The silver was liquified under a layer of borax (it prevents the oxidation of the molten silver).
After all have melted we just dropped it in a bucket of water and took out this shiny lump of this beautiful metal.
Should I write it down of you know it? Chemistry is AWESOME!
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EVERY TIME DURING EXAM PERIODS
To those about to test, we salute you. Good luck on finals, everyone!
The Chemistry Society held a volleyball tournament fundraiser last week. We raised over $2,000 to help fund science programs at local high schools in Philadelphia. Fun!
Also, our professors are ridiculously competitive and surprisingly REALLY good at volleyball.
The Temple University Chemistry Society raising money with a volleyball tournament to support science education. Great job, guys!
Krypton was stumbled upon while searching for another noble gas. The stumblers (or stumblrs, imo), Sir William Ramsay and his assistant, Morris W. Travers (Scottish and English fellows, respectively) were looking for the noble gas lighter than Argon but instead first found the noble gas heavier than it.
Taking liquified air, they removed the main components and were left with some unknown substance. They looked at the spectra of it and found it to be something they’d not seen before. Because the substance had ‘remained hidden’ in the liquified air they named it Krypton, from the Greek kryptos, meaning ‘hidden’ (cf. ‘cryptic’).
Chemistry and Super Mario. Awesome
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Hydrogenation with shaking. This is a 1000cm3 hydrogenation vessel what works with shaking. The black color is caused by the 10% Pd/C hydrogenation catalyst.
If have eaten almost 10l of hydrogen, hope that it will result some rheosmin (raspberry odor ketone).
Great #realtimechem picture:
Word of the Day: Diffusion
“The mixing of gases as the result of random motion and frequent collisions.”
Source of Definition: Chemistry by Julia Burdge. McGraw-Hill. Copy Right, 2009.
Source of image: http://friedbiochem.weebly.com/uploads/1/0/2/1/10215347/585453388_orig.jpg
This was on the door to my chemistry lab.
A shopping list made by a truly hardcore chemist. Could you find all of these items? From: http://imgur.com/rRTt0dE
The product of a (finally succesful) epoxidation. The problem is, that a little meta-chloro-perbenzoic acid is still present.
But it looks nice(:
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Undergraduates at the Student Chapter Awards Ceremony in New Orleans. Want to see your student chapter? Go to: https://communities.acs.org/photoAlbums/1064
Preventing Battery Explosions
ACS Meeting News: Novel electrolytes could solve flammability problems that grounded Boeing Dreamliners
To address problems with smoldering lithium-ion batteries that grounded Boeing’s 787 Dreamliner airplanes, engineers added heat insulation to the batteries and designed the battery box so it will vent any hot gases outside the plane. These fixes won’t stop the batteries from bursting into flames but could mitigate damage if they do. Read Full Story
Undergrads sign up to be chemistry ambassadors with ACS’s Keith Lindblom (2nd from left) #acsnola
What can pecan pie teach us about food chemistry? A team of Cornell students hopes to convey a lesson in the role of metals and proteins in setting the gel in a practically perfect pecan pie filling in an interactive cooking demonstration during the American Chemical Society’s (ACS) spring...
Must get this watch!
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Chemical Careers: 1980 Employment Outlook
Chemical & Engineering News, October 22, 1979 [pdf]
Bacteria Can Become Addicted to Caffeine Some people may joke about living on caffeine, but scientists now have genetically engineered E. coli bacteria to do that — literally. Their report in the journal ACS Synthetic Biology describes bacteria being “addicted” to caffeine in a way that promises practical uses ranging from decontamination of wastewater to bioproduction of medications for asthma. Read more: http://www.laboratoryequipment.com/news/2013/03/bacteria-can-become-addicted-caffeine
