Chemistry

Every moment of every day, chemistry plays a part in all we experience. This branch of the Helium network humbly attempts to illuminate the vast array of chemical knowledge, making it accessible to all. Let our site inform, inspire, and awe you with chemical wonders.
By: Maya Vokes-Didier
Ferrates are environmentally friendly treatment ions that effectively treat a wide range of contaminants in water and wastewater. A need for an adequate supply of clean water is an issue faced by communities all over the world, particularly in semi-arid and arid places, where...
By: Elton Gahr
When one thinks of the Nobel Prize generally, the mind goes to the great discoveries such as the double helix of DNA, x-rays, the decoding of the human genome and others dramatic discoveries. In many ways though, the most important discoveries are not in those...
By: Elton Gahr
The basic optical microscope is an invaluable tool, and one which has principles which were discovered hundreds of years ago and have advanced remarkably little. By bending light, objects can be made to appear larger, or smaller. As you near the atomic level issues begin...
By: Shawn Wells
Cyclic voltammetry is a type of potentiodynamic electrochemical measurement, a technique used to measure potential at an electrode in an electrochemical cell. Cyclic voltammetry is based on a linear potential waveform where potential is changed as a linear function of time. The potential range of...
By: Jessica Williford MSHS, CEHT
Photoacoustic Spectroscopy (PAS) is a type of Spectroscopy that uses light or other energy for "photo" and sound for “acoustic.” Spectroscopy, by itself, deals with emitting and absorbing light, matter and energy. PAS translates optical energy to mechanical energy through wavelengths during excitation...
How a chemical bond occurs
By: michael88
We all want to have a relaxed life, and so do atoms. Atoms, when alone, are high in energy and are unstable. To be in a more stable state, atoms form bonds. How does it form bonds? There are three kinds of bonds and they...
The chemistry of ocean acidification
By: Nigel Holmes
Scientists tell us that the oceans are becoming more acidic as a result of increasing levels of atmospheric carbon dioxide (written as CO2.) But how does what’s in the air affect the oceans, and why should CO2 make them acidic? To answer these...
By: Lenna Gonya
The common plastic water or soda bottle is one of the most common uses for the polymer resin, polyethylene terephthalate, or PET. Products made from this material are recyclable, however, beginning in 2012, Pepsi will go one step further and produce a bottle that is...
Factors that affect the solubility of carbon dioxide in oceans
By: Nigel Holmes
In 2005 The Royal Society published a report titled “Ocean acidification due to increasing atmospheric carbon dioxide”. This bleak analysis described how increasing levels of carbon dioxide in the atmosphere are altering the makeup of the oceans. Driving this change is the process of...
By: James Harvey
Most people have probably never even heard of isocyanates, but they use them every day, whether they realize it or not. Isocyanates are composed of a family of highly reactive, low molecular weight chemicals. They are used in such things as flexible and rigid foam...

 

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