Nickel tetracarbonyl. A highly toxic, but very useful organonickel compound. Nickel tetracarbonyl is produced industrially during the purification of nickel metal. It is synthesised by passing carbon monoxide gas over impure nickel at 130˚C to selectively remove pure nickel. The gas is then heated up to 250˚C where it will decompose back into nickel metal and carbon monoxide. As with most nickel salts, nickel tetracarbonyl is very toxic, with its LD50 being around 3ppm for a 30 minute exposure.
as a celebration of my recent return to the worlds of chemistry and academia, let’s share a moment of appreciating how interesting looking molecular orbitals are. (in case you are vaguely curious as to what they are, each one is a depiction of where the electrons orbit around in a molecule.)
Structures of solid oxygen under high pressure: At 1.9 TPa, oxygen polymerizes and assumes a square spiral-like structure, which is semi-conducting (top). With increasing pressure, the polymer exhibits metallic properties (zig-zag chain-like phase, mid). Then, the structure changes into a metallic layer phase (bottom). The coloured areas represent the charge density in one layer of the structure. (Credit: © Jian Sun)
Hey chemists! Tired of your word processor vomiting red squiggles all over your papers and lab reports? Check out this custom chemistry dictionary — it’s compatible with Microsoft Office and OpenOffice, and contains over 100,000 entries. (If you’re interested, there’s also a biology/medical dictionary available.)
Hello! Welcome to my web log. If you want, you should say hi!
Some of my interests (list has not been updated in years):
And some other stuff.
Things I've saved for later.