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The complex chemistry of making paper
Apr 4, 2023 · Performance-enhancing chemicals address the process chemistry side of manufacturing, ensuring that each stage runs smoothly. Defoamers and dispersants tackle practical issues such as foaming and clumping in the pulping vats, while cleaning and descaling treatments ensure water quality meets the required standards.
Explainer: The chemistry of farts | News | Chemistry World
Dec 21, 2016 · Consequently, De Lacy Costello and his colleagues have moved beyond the most common gases to studying volatile compounds released from faeces in very low concentrations. 6 Initially, they mimicked conditions in the large intestine by mixing faeces and nutrient medium in a container. They absorbed volatile chemicals onto plastic fibres above the mixture or pumped out through a tube, to be ...
Explainer: The science of alkyl nitrites aka poppers
Sep 16, 2021 · From the 1960s onwards, poppers became established as a recreational drug, with various alkyl nitrites produced, including isopropyl nitrite, isobutyl nitrite and butyl nitrite, to get around legal restrictions.The drug was widely used by clubbers for a brief time in the 1990s, but plays a continued role in gay subculture.
ChemSpider | Review | Chemistry World
Oct 2, 2009 · ChemSpider is a chemistry search engine, aggregating and indexing chemical structures and their associated information into a single searchable repository, and free at that.
Explainer: Why is mixing cleaning chemicals such a bad idea?
Apr 23, 2020 · Accidental poisonings in the US have risen dramatically during the Covid-19 lockdown. They are up 20% in the first three months of 2020 compared with last year, according to the Centers for Disease Control and Prevention (CDC). There were 45,550 calls related to exposure to disinfectant and cleaning agents, almost two-thirds of the incidents involving bleach and most of the others non-alcohol ...
One-electron covalent bond between two carbons pushes limits of …
Oct 4, 2024 · ‘The strategy … involves stretching the bond in the parent molecule and tuning the energies of the molecular orbitals,’ says Cate Anstöter, a research fellow at the University of Edinburgh who was not involved in the study.‘It’s a real …
Not just batteries: The chemistry of electric cars
The internal combustion engine is not dead, but it may be beginning to die. One of the few bold steps taken at the November 2021 Cop26 climate conference in Glasgow, UK, was a declaration on phasing out sales of petrol and diesel cars by 2040 in all markets and by 2035 in leading ones: many European countries have set earlier dates, with the UK opting for 2030.
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Mastering chemistry | Review | Chemistry World
Sep 28, 2010 · Mastering Chemistry is a web-based homework and tutorial system aimed at university students studying chemistry, and is accompanied with an interactive e-text, Chemistry, by Catherine Housecroft and Edwin Constable. Mastering Chemistry provides an easy to use platform for both undergraduate students and tutors.