Substituting nitrogen atoms for aromatic carbon atoms at specific locations within the molecular skeleton of a possible therapeutic agent can have significant effects on molecular properties critical for biological activity, such as hydrogen bonding, polarity, metabolic stability, target specificity and…
A practical overview on how to use location factors, and some tips on when to use — or not use — them Often in the early stages of project development in the chemical process industries (CPI), the development team is…
Adhering to API 682 guidelines will create safe, efficient and effective mechanical-seal supports in pumping systems In the 1980s, mechanical seals became the most frequently used sealing technology in petroleum refineries and chemical plants. The American Petroleum Institute (API; Washington,…
Researchers at Eidgenössische Technische Hochschule Zürich (ETH Zurich; Switzerland; www.ethz.ch) and Nanyang Technological University Singapore (NTU; www.ntu.edu.sg) developed a process to utilize industrial chicken feathers for making proton-conductive membranes that can be used in fuel cells, protonic transistors and water-splitting…
In traditional beer brewing, the progress of the fermentation process is typically checked manually, by inserting a hydrometer (beer spindle) that measures the density, from which the extract content of the wort can be derived — a procedure that not…
NC-520XP hearing-protection headsets (photo) are designed for use in demanding environments. They incorporate Dual Bluetooth, which enables the connection of two Bluetooth devices simultaneously (such as a smartphone or radio), enabling hands-free communication. This also allows users to listen to…
Selecting an effective system for controlling air pollution can help to achieve balance between environmental stewardship and industrial productivity Air pollution is an ongoing worldwide concern that impacts people and ecosystems across the globe. The emission of pollutants like particulate…
Leather Tanning Trumpler GmbH & Co. KG (Worms, Germany; www.trumpler.com) and Archroma (Pratteln, Switzerland; www.archroma.com) have developed a new leather-production process that can be used to produce high-performance leather in a more eco-friendly and cost-efficient way. The new process, DyTan,…
Within rubber production facilities, density is an important process parameter that correlates with the degree of cross-linking or the hardness of the elastomer used. The determination of the density is therefore of great importance for the development of recipes and…
Now in its 27th year, the Green Chemistry Challenge Awards recognize and promote chemical technologies that reduce hazards to people and the environment by incorporating the principles of green chemistry into chemical design, manufacture and use. The program is sponsored…