A range of production processes frequently employ acid mixtures comprised of two or three acids; for example, nitric acids, sulfuric acids and hydrochloric acids. In order to use these acids safely ...

Acid number determination plays a central role in petroleum quality control. This method is used to estimate the amount of additive depletion, oxidation and acidic contamination in petroleum products.

The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...