Page-22 of Chemistry Current Affairs, GK & News

Toxic Sindoor classified as Cosmetic

Vermilion or Cinnabar or China Red is Mercuric sulfide or HgS. Like most mercury compounds it is considered toxic. Vermilion is now produced by reacting mercury with molten sulfur. Recently, the Drug Technical Advisory Board has decided to regulate the sale and quality of sindoor. It is being brought under Schedule S of the Drugs ..

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Potential use of Radon in Earthquake Predictions

Recently, it was published in the media that Dipak Ghosh, emeritus UGC fellow, who had embedded a solid-state nuclear track detector 70cm underground beside the Faculty Club at Jadavpur University, recorded abnormal fluctuations in radon gas emission from below. This was followed by Earthquakes in Sikkim and other parts of India. Its worth note that ..

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Laser Enrichment Process

What is Laser Enrichment Process? In one of our science modules we have studied about the Uranium Enrichment Process by Centrifuges. The fundamental principle behind the Uranium Enrichment by centrifuges is that U-235 weighs slightly less than U-238. This difference in weight is used to separate them. First Uranium is made to react with hydrofluoric ..

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Potential of Gold in treatment of Cancer

At present, one isotope gold Au-198, (half-life 2.7 days) is used in some cancer treatments and for treating other diseases. Recently, an international team, led by University of Western Australia and Griffith University, has described how using two imaging techniques can allow scientists to see where gold complexes used in potential chemotherapeutic treatments end up ..

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Oxygen in Orion constellation

Recently, the European Space Agency’s Herschel telescope has found the first confirmed evidence of oxygen molecules in space. The Oxygen molecules have been found in the star forming region of the Orion constellation. Oxygen gas was discovered in the 1770s, but it’s taken us more than 230 years to finally say with certainty that this ..

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