Background: Alkyl ester quaternary ammonium compounds (ester quats) are used extensively in fabric rinse conditioners. It is important to document in the literature the outcome of historical ...

Two were discovered to negatively affect brain health. These chemicals are quaternary ammonium compounds (also called 'quats ...

Analysing over 1,800 chemicals, they pinpointed organophosphate flame retardants and quaternary ammonium compounds as harmful. These findings, which necessitate further investigation, highlight ...

Next in the chain come tertiary and quaternary industries, also known as the service industries. Tertiary and quaternary industries tend to be more important in more economically developed countries.

Climate change and the developments it spurs carry the narrative of the Quaternary, the most recent 2.6 million years of Earth's history. Glaciers advance from the Poles and then retreat ...