Arsen [aʁˈzeːn] ist ein chemisches Element mit dem Elementsymbol As und der Ordnungszahl 33. Im Periodensystem der Elemente steht es in der 4. Periode und der 5. Hauptgruppe, bzw. 15. IUPAC-Gruppe oder Stickstoffgruppe. Arsen kommt selten gediegen vor, meistens in Form von Sulfiden. Es gehört zu den Halbmetallen, da es je nach Modifikation metallische oder nichtmetallische Eigenschaften zeigt.Umgangssprachlich wird auch das als Mordgift bekannte Arsenik meist einfach „Arsen“ genannt

Bakterien sind alles andere als harmlos! In dieser Folge geht es um Mini-Speere, Zellkanonen und DNA-Shooter und darum, wie Mikroorganismen echten „Krieg“ führen, um zu überleben.Von wiederverwendbaren Speerwerfern bis hin zu Selbstmord-Bomben mit genetischem Nutzen: Die Strategien sind brutal, komplex und wissenschaftlich faszinierend.Informationen zum PodcastRecherche und Skript: Anne Mayer, mit Unterstützung von Consensus AITon und Schnitt: Jens WalterDarf’s ein bisschen Chemie

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We didn't wake up one morning and decide to raise prices. We spent two and a half years trying not to. The story behind why we didn’t raise prices until now and what triggered it finally happening

How did growing up in coastal Sri Lanka inspire a career focused on the future of corrosion protection? In this episode of the HQP Highlight Series, Thilini Malsha Suduwella (PhD candidate in Prof. Janine Mauzeroll's lab at McGill University) joins to discuss her research investigating NHC coatings on steel and the electrodeposition of NHCs on carbon surfaces for corrosion protection. Hosted by Hetvi Shah (PhD candidate in Dr. Gang Zheng's lab at the University of Toronto), this conversatio...

We have all seen the heat of atmospheric reentry depicted a thousand times in movies and TV shows, but how do we actually protect spacecraft from that danger? Taylor and Andrew sit down with Nate Olson, an aerospace engineer at NASA's Johnson Space Center, to explore the history of thermal protection systems. Nate unpacks the science of surviving atmospheric entry from the simple blunt-body design that made reentry physically possible, to the ~300,000 honeycomb cells hand-caulked with Avcoat on

Is your air conditioner secretly doing chemistry while you’re inside pretending summer doesn’t exist? How does it turn hot air into cool air, and why does part of the AC blow out even more heat? In this episode, Melissa and Jam crack open the mysterious black box of air conditioning to explore refrigerants, phase changes, energy transfer, and the surprisingly clever science keeping your house livable. Plus: frozen AC coils, summer survival drinks, and the beginning of Hibiscus Girl Summer.Support

You’ve likely relied on a drug at one point or another, whether it be a prescribed medication or something over the counter. The upcoming miniseries of Chain Reaction explores the history, impact, and future of major drug classes, including antibiotics, birth control, antidepressants, and GLP-1s. Margot and Sam will chat with experts about the history and scientific breakthroughs behind these medicines and the ongoing research that could shape the next generation of drugs. Transcripts a...

In dieser Folge tauchen wir ein in die faszinierende Geschichte des Elements Germanium (Ge, Ordnungszahl 32) – einem silbergrauen Halbmetall, das die Elektronikrevolution des 20. Jahrhunderts mitbegründet hat und heute in Glasfasern, Wärmebildkameras und Quantencomputern steckt.Themen dieser Folge:Mendelejews legendäre Vorhersage von „Eka-Silizium" (1871) und die Entdeckung durch Clemens Winkler (1886)Chemische und physikalische Eigenschaften: Bandlücke, Diamantstruktur, IsotopeGermanium als

Dagens afsnit handler om grundstoffet fosfor/phosphor. Man støder på det hele tiden, og så alligevel ikke. Det findes nemlig ikke rent i naturen, men i kemiske forbindelser i gode ting som pis og sten (They're minerals!). Vi kommer ind på hvad fosfor bruges til, og hvad liv bruger det til… og vi kommer ind på hvad man måske skal bruge det mindre til: krigsforbrydelser og døde have. Så hold på skeletter og guano inden Briterne kommer og tager det, og lyt med til afsnittet om det periodiske sys...

Luuk F P Giesen, Jeroen A Roest, Frederique M A Koopman, Martine M L Deckers, Helena Chon, Christian M Hackeng, Jurgen A Riedl, Michiel de Bruin, Brooke M Katzman, Warry van Gelder, Janne Cadamuro, Mads Nybo, Michael A Fouraux, Thijs C van Holten, Robert de Jonge. Performance, Safety, and Patient Experience of an Autonomous Robotic Phlebotomy Device: A Multicenter Trial. Clinical Chemistry, Volume 72, Issue 8, August 2026, Pages 845–856. https://doi.org/10.1093/clinchem/hvag029

Ingar Ziad Restan, Yong Yong Tew, Ole-Thomas Steiro, Ziwen Li, Hilde L Tjora, Jørund Langørgen, Torbjørn Omland, Paul Collinson, Rune Bjørneklett, Kjell Vikenes, Trude Steinsvik, Øyvind Skadberg, Øistein R Mjelva, Alf Inge Larsen, Vernon V S Bonarjee, Nicholas L Mills, Kristin M Aakre. Exploring Sex-Specific High-Sensitivity Cardiac Troponin Thresholds for Rule-Out of Non-ST-Elevation Myocardial Infarction. Clinical Chemistry, Volume 72, Issue 8, August 2026, Pages 868–879.

[00:00] - Intro[01:03] - Self Awareness [05:46] - Why I chose to join Pool Brain [08:47] - Addressing our industry's turnover problem [14:19] - Motivation when changing companies [17:57] - What I'll be doing at Pool Brain [20:48] - Closing ______________________________Connect with us!Game Changing Pool Business Software:Pool Brain®Realize your full potential.Watershape University®Water chemistry questions?Orenda®Questions? Comments? Or apply to sponsor the show:ruleyourpool@gmail.comFacebook:

In this podcast, we discuss the relatively new company, Indovinya and its position in the surfactants industry.Tekno Scienze Publisher is an academic publisher in Italy. It publishes 3 scientific journals: Chimica Oggi – Chemistry Today, Agro Food Industry Hi Tech, and Household and Personal Care Today. Always attentive to scientific innovation, the TKS Group organizes events including the International Oligonucleotides and Peptides Conference e il CFRT, symposium on continuous flow reactor

What ingredients are in your lash serum? And is it really worth the risk? Long, luscious lashes are a beauty goal for many, but do you really know what's happening when you use those popular eyelash serums? This week we are diving into an unlikely lash lengthener that was discovered while treating glaucoma. We are telling you everything you need to know about prostaglandin analogs. These ingredients not only stimulate lash growth but can also cause side effects like eye color darkening and

In this episode, we breakdown the controversy behind a collection of altered images in the online catalogue of one of the largest laboratory suppliers, and discuss the complexity behind chemical recycling of plastics with Frankie Macpherson and Phillip Broadwith. Multinational laboratory supplier Thermo Fisher Scientific has been criticized after hundreds of doctored images of validation Western blots were found on their online antibody reagent catalogue. We discuss the latest reactions from the

In this episode, we breakdown the controversy behind a collection of altered images in the online catalogue of one of the largest laboratory suppliers, and discuss the complexity behind chemical recycling of plastics with Frankie Macpherson and Phillip Broadwith. Multinational laboratory supplier Thermo Fisher Scientific has been criticized after hundreds of doctored images of validation Western blots were found on their online antibody reagent catalogue. We discuss the latest reactions from the

In this episode of Stereo Chemistry's sister podcast, Inflection Point, hosts David Anderson and Gina Vitale travel back in time to understand how we are capturing carbon at the source and removing existing CO2 from our atmosphere. They also bring in C&EN reporters Alex Scott and Fionna Samuels to explain how CO2-scrubbing technology from a 19th-century submarine is still basically used today and how making the ocean more basic might help us mitigate our emissions. C&EN's award-winning

Et lille sår kunne engang være en dødsdom. Men i 1930’erne finder den tyske læge Gerhard Domagk det første effektive kemiske våben mod bakterielle infektioner: sulfa-stofferne. Opdagelsen begynder i laboratoriet med et rødt farvestof og bliver pludselig personlig, da Domagk bruger medicinen til at redde sin egen datter.For den opdagelse vinder han Nobelprisen i 1939. Men den falder midt i en verden på vej mod krig, og nazisterne tvinger ham til at afslå den.Afsnittet er skrevet og tilrettelagt

Not electric or hydrogen. Electric and hydrogen. Building a transport system fit for every journey. Transport is one of the biggest challenges on the road to net zero. While electric vehicles dominate headlines, there are many sectors where batteries alone may not provide the answer. In this episode, Sara Sloman discusses how hydrogen can complement electrification, the importance of customer experience, infrastructure, policy and innovation, and why the clean transport transition will requi...