DURING investigations into the nature of gases produced by the reaction of nitrous acid with soil humic acids and lignins, a product was obtained from lignin which showed anomalous behaviour. There ...

THE reaction of coal with permanganate has often been studied in the past for probing into the constitution of coal, or for the isolation of aromatic and heterocyclic poly-carboxylic acids with the ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

The intense colors shown in this photo are formed by the exothermic oxidation of ethanol with potassium permanganate in the presence of concentrated sulfuric acid. Murilo Sérgio da Silva Julião is a ...

The film explores the concept of solutions in chemistry, defining key terms such as solute and solvent. It illustrates how solute particles dissolve and disperse uniformly in a solvent, highlighting ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

BURNS of the vagina and cervix due to the use of potassium permanganate tablets as an abortifacient constitute a new and gradually increasing serious complication of early pregnancy in and around ...