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Comparisons
Comparisons of platforms, processes, and sourcing options.
ArticleChemAbout Editorial Team12 min read
Can Potassium Ferrate Replace Chlorine and PAC? Mechanism, Cost and Regulatory Status of a Dual-Function Oxidant
Potassium ferrate is marketed as a single chemical that does what chlorine and PAC do in two steps - oxidize, then coagulate. This article explains the redox mechanism behind that dual function, why stable solid ferrate is expensive to manufacture, how its regulatory status for drinking water is evaluated product-by-product (including China's GB/T 17218 permit regime), and why it hasn't replaced chlorine and PAC at most plants. Peer-reviewed sources throughout.
ArticleChemAbout Editorial Team11 min read
HATU, HBTU and T3P: How Three Peptide Coupling Reagents Actually Differ — Mechanism, Epimerization, and Handling
HATU, HBTU and T3P dominate peptide and pharma amide-bond formation, but they differ in reactivity, epimerization, workup and — critically — regulatory status. Grounded in the El-Faham & Albericio review and the ACS GCIPR safety assessment, this article sets out how the three reagents actually differ, why HATU couples cleaner than HBTU, and why T3P is a CWC Schedule 2 controlled chemical while HATU and HBTU are not.