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In today's fast-paced technological landscape, plastics have become ubiquitous, serving a myriad of applications from packaging to electronics. One essential property that has garnered increasing attention is the control of static electricity. The accumulation of static charge in plastics can lead to a host of problems, including dust attraction, product malfunction, and even safety hazards like electrical shocks and fires. To address these issues, anti-static additives have emerged as critical components in the formulation of plastics.


The evolution of plastics and polymers has significantly transformed modern life, leading to widespread applications across various industries, from packaging to automotive components and medical devices. As a result, understanding the chemical composition of these materials, particularly the additives that enhance their performance, is of paramount importance. The Handbook for the Chemical Analysis of Plastic and Polymer Additives serves as an essential resource for scientists and engineers involved in the formulation, testing, and regulation of plastic materials.


1. Acid Addition For acidic water (pH < 7), acids such as sulfuric acid or hydrochloric acid can be added to increase the pH to acceptable levels. This method requires careful monitoring to avoid overshooting the neutral range.


One of the most common chemicals used in water treatment is chlorine. Chlorination began in the late 19th century and has since become a staple in public water treatment systems. Chlorine effectively kills a wide range of pathogens, including bacteria, viruses, and protozoa. It is typically added at the water source to disinfect the water before it enters the distribution system. Despite its effectiveness, the use of chlorine can create by-products, such as trihalomethanes (THMs), which have raised health concerns. Consequently, water treatment facilities are constantly seeking alternative disinfection methods or ways to limit chlorination by-products.


While polyacrylamide is widely used, safety considerations are crucial. The monomer, acrylamide, is classified as a potential neurotoxin and carcinogen, prompting regulatory scrutiny. It is vital to handle polyacrylamide products according to safety guidelines to minimize exposure to acrylamide fumes or dust, particularly in industrial settings.


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