Archive for the 'Chemistry' Category

New Chemistry for Boron

Sunday, July 8th, 2012

In a vacuum-sealed flask on a lab bench in Germany sits an emerald-green crystal that will cause some jaws to drop. The crystal is the first stable compound containing a triple chemical bond between two boron atoms, a feat that had previously been limited to only two other non-metal elements – [...]

Flerovium and Livermorium Added to Periodic Table

Sunday, June 3rd, 2012

IUPAC has officially approved the name flerovium, with symbol Fl, for the element of atomic number 114 and the name livermorium, with symbol Lv, for the element of atomic number 116.  Priority for the discovery of these elements was assigned, in accordance with the agreed criteria, to the collaboration between the [...]

Interesting Chemical Synthesis Article

Tuesday, February 28th, 2012

O. Hai from the Institute for Theoretical Experiments and I. B. Hakkenshit from the Chemistry Department of Miskatonic University present a new method of synthesizing pseudoephedrine (e.g. Sudafed):
While in the past many stores were able to sell pseudoephedrine, new laws in the United States have restricted sales to pharmacies, with the medicine kept behind the [...]

A Diamond Bigger Than the Ritz

Friday, August 26th, 2011

“[A] diamond as big as the Ritz-Carlton Hotel” would be nothing compared to this:
Neutron stars form from the core of a collapsing star and, as the supernova dissipates, often rotate rapidly, creating a pulsar. In less than a million years, however, their strong magnetic fields act as a brake, slowing them [...]

Carbon-14’s Long Half-Life Explained

Monday, July 18th, 2011

Carbon-14 decays with a half-life of 5730 years, so it is often used to date objects up to about 50,000 years old (anything older would have negligible amounts of the stuff). But most other atoms that decay in the same way—by converting one of their neutrons into a proton—disappear in less than a day. [...]

Dinosaur Teeth May Help Reveal Whether They Were Endothermic

Friday, June 24th, 2011

A new method for determining temperature using isotopes is now being applied to dinosaurs, and promises to provide hard data that could advance the debate [over whether dinosaurs were endothermic or ecothermic]. This new method, called “clumped isotope thermometry,” is based on the tendency of a heavier isotope of carbon (13C) to preferentially bond with [...]

Cryptic Variation and Preadaptation

Wednesday, June 22nd, 2011

[P]rocesses, called cryptic variation and preadaptation, involve mutations that don’t affect an organism when they first occur, and are initially exempt from pressures of natural selection. As they gather, however, at some later date, they could combine to form the basis for complex, unpredictable new traits. In the new study, the ability of evolving, [...]

Elements 114 and 116 Added to the Periodic Table

Thursday, June 2nd, 2011

Elements 114 and 116 have been officially added to the periodic table[.] … The researchers forged the new heavy elements by slamming together the nuclei of lighter atoms at an accelerator at [the Joint Institute for Nuclear Research Dubna, Russia and the Lawrence Livermore National Laboratory in California].
They made element 116 by bombarding targets made [...]

Six New Isotopes of the Superheavy Elements Discovered

Monday, November 1st, 2010

A team of scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory has detected six isotopes, never seen before, of the superheavy elements 104 through 114. Starting with the creation of a new isotope of the yet-to-be-named element 114, the researchers observed successive emissions of alpha particles that [...]

Buckyballs in Space

Thursday, July 22nd, 2010

A team of astronomers has found  that in the dusty environment around a white dwarf star lying about 6500 light years from Earth, a few per cent of the carbon is in the form of buckyballs.  The astronomers used the Spitzer Space Telescope to detect  the distinctive infrared spectrum of buckyballs made of 60 and [...]