Figure 1: Br/Cl and I/Cl for chondrites and planetary materials. Figure 3: CI-chondrite and Mg-normalized BSE abundances as a function of 50% T C. The limited variation in the Br/Cl and I/Cl ratio of ...

New research shows that using halogens -- a class of elements that include fluoride, bromine, chlorine and iodine -- in a dye-sensitized solar cell can increase conversion efficiency by 25 per cent.

I was looking at the periodic table of the elements the other day, as one does, when my eye fell upon the right-hand side of the chart. Right next to the noble gases at the extreme edge of the table ...

When it comes to energy-saving lightbulbs, LEDs and CFLs spring to mind. But what about halogen bulbs? They don't get much attention, partly because they've been around for a long time and they use a ...

As time wears on, it's becoming clear that the writing is on the wall when it comes to products and services that are destructive to the environment. It's taken a long time for governments to react, ...

This film discusses the halogens, specifically chlorine, bromine, and iodine, detailing their preparation from naturally occurring salts and their chemical properties. The film demonstrates various ...

Since its introduction in 2001, Mack Trucks’ Granite vocational model has changed little in outward appearance, even as numerous improvements have been applied under its hood, on its chassis, and ...

When the alkali metals react with the different halogens (Group 7 of the periodic table), the group of compounds formed are known as the alkali metals halides. Due to the fact that there are a number ...

Electronics companies have experienced some chemical reactions in the past two decades. Many will recall the European RoHS Directive (Restriction of Hazardous Substances), which came into force in ...

How many halogens, that is volatile elements such as chlorine and fluorine, are present on the Moon and how they are distributed provides vital insights into the origin and evolution of our celestial ...