latest news: in International
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Chillventa 2018 – the Baked Alaska of refrigerants business debate
Changes in refrigerant gases have taken centre stage at the biennial Chillventa exhibition, running this week from 16th to 18th October in Nürnberg, Germany. The event has been likened to a ‘Baked Alaska’ – the weather has been stunningly warm and sunny outside as Bavaria enjoys another golden autumn, but the talk inside was decidedly […]
International Greenhouse/Ozone Gases -
Fluoride Exposure in Pregnancy Tied to ADHD Symptoms in Kids
Pregnant women with higher levels of fluoride in their urine may be more likely to have school-age children with certain symptoms of attention-deficit/hyperactivity disorder (ADHD), such as inattentiveness and cognitive problems, according to a new Canadian study led by researchers at the University of Toronto and York University. The findings are published in the journal […]
International -
We add it to drinking water for our teeth — but is fluoride hurting us?
Three new studies released today link fluoride exposure to ADHD and thyroid problems — and point to drinking water as the major source of exposure. Two studies — one from Canada and one Mexico — released today point to potential health problems from fluoride, which, in a majority of U.S. communities, is purposefully added to […]
International -
Electrodialysis for fluoride and nitrate removal from synthesized photovoltaic industry wastewater
Highlights Electrodialysis for the fluoride and nitrate removal from photovoltaic wastewater. Significant fluoride removals obtained in acidic or neutral medium after 6 min. Nitrate delays the fluoride removal from and makes the removal less effective. Abstract Fluoride and nitrate ions are the main pollutants in the photovoltaic cells manufacturing effluent. Their presence in the effluent […]
International Water Treatment -
BBC: In their element – Fluorine [and a discussion of Fluoridation]
Discovery – In Their Element – Fluorine – BBC Sounds Released On: 03 Sep 2018; Available for over a year Listen to 26 minute program at https://www.bbc.co.uk/sounds/play/w3csxhj7 Chemist Andrea Sella tells the story of how the feared element ended up giving us better teeth, mood and health. Many chemists have lost their lives trying to […]
International United Kingdom Chemical Industry -
Synthesis of the veterinary antibiotic florfenicol by a fast chemo-enzymatic route
Fluorinated structures make up more than 20 percent of modern drugs, but benign and fast fluorination schemes are scarce. In a study published in the European Journal of Organic Chemistry, scientists have now combined dynamic kinetic resolution and nucleophilic fluorination for the asymmetric synthesis of florfenicol, a veterinary antibiotic. After enzymatic resolution of the racemate, […]
International Pharmaceuticals -
European Organization for Caries Research Workshop: Methodology for determination of potentially available fluoride in toothpastes.
Abstract: Toothpastes are the most universally accepted form of fluoride delivery for caries prevention. To provide anti-caries benefits, they must be able to release fluoride during the time of tooth brushing or post brushing into the oral cavity. However, there is no standard accepted procedure to measure how much fluoride in a toothpaste may be […]
International Toothpaste -
Science: Electric car batteries souped-up with fluorinated electrolytes for longer-range driving [Report]
The success of electric car batteries depends on the miles that can be driven on a single charge, but the current crop of lithium-ion batteries are reaching their natural limit of how much charge can be packed into any given space, keeping drivers on a short tether. Now, researchers at the University of Maryland (UMD), […]
International Batteries -
Iron trifluoride could make better electric-car batteries
Adding oxygen and cobalt to the cathode prevents lithium from breaking chemical bonds Researchers at the University of Maryland, in conjunction with Brookhaven National Laboratory have developed a new battery cathode material that they say could triple the energy density of lithium-ion batteries. The new material is an engineered variety of iron trifluoride, a well-known […]
International Batteries -
New modified iron trifluoride intercalation-conversion cathode could triple energy density
A collaboration led by scientists at the University of Maryland (UMD), the US Department of Energy’s (DOE) Brookhaven National Laboratory, and the US Army Research Lab have developed and studied a new cathode material—a modified and engineered form of iron trifluoride (FeF3)—that could triple the energy density of lithium-ion battery electrodes. Their open-access paper is […]
International Batteries