Element 50 in our International Year of the Periodic Table series is antimony. Used in antiquity as eyeliner and mascara, today antimony finds uses in fire retardants, car batteries and bullets. Antimony is one of the elements known since ancient times. Antimony sulfide (stibnite) was ground into a powder called kohl which could then be used …
Element 50 in our International Year of the Periodic Table series is tin. Tin was formerly used in the statuettes awarded at the Oscars, and is used to make window glass. It’s also found in eponymous tin cans. The Oscar statuettes have been made from bronze with a gold-plating since the 2016 awards. However, prior …
Element 49 in our International Year of the Periodic Table series is indium. Indium makes the touch screens in our electronic devices possible, and is also found in emergency sprinklers and Formula 1 cars. If you’re reading this on a phone or tablet with a touchscreen, the device you’re using contains indium in the form …
Element 49 in our International Year of the Periodic Table series is indium. Indium makes the touch screens in our electronic devices possible, and is also found in emergency sprinklers and Formula 1 cars. If you’re reading this on a phone or tablet with a touchscreen, the device you’re using contains indium in the form …
Element 48 in our International Year of the Periodic Table series is cadmium. Cadmium’s main use is in batteries, and it has previously seen use in paints – however, its toxicity means that many countries are looking to remove it from consumer products. In 2009, over 80% of the world’s cadmium output was used in …
Sunscreen protects our skin from the sun, but there’s also evidence that some of the lotion’s ingredients may damage coral reefs. The latest edition of Periodic Graphics looks at the responsible compounds and efforts to combat the problem. Click through to the Chemical and Engineering News site to view the full graphic. https://www.compoundchem.com/2019/07/21/sunscreen-reefs/
Tribologists use the iconic image of Egyptians lubricating the logs used to move the large stones and stone carvings. To rival that — archaeologists studying Stonehenge discovered that these ancient people may have used pig lard to lubricate sleds used to move the massive stones. Tribologists may need to think about ancient practices more. Stonehenge_from_north,_August_2010.jpg …
Element 47 in our International Year of the Periodic Table series is silver. Silver compounds are key for film photography, and this element also pops up in your clothing: conductive gloves and some antibacterial socks contain it. For those of us old enough to remember the days when phones with physical keys dominated, touch-screen phones …
Element 46 in our International Year of the Periodic Table series is palladium. Another element that finds uses in the catalytic converters in our cars, palladium can also be used for hydrogen fuel storage and, more rarely, for making flutes. Like the previous element in our series, rhodium, palladium is used in the catalytic converters …
Super duplex stainless steel (SDSS) has excellent mechanical properties and corrosion resistance. However, currently, there are few researches conducted on its fretting wear performance. This paper studies the influence of different heat treatment temperatures and medium environment on the fretting wear performance of SAF 2507 SDSS. Results show that the combined effect of the sigma …
