Polymeric polyols are prevalent in the production of polyurethanes and other specialized polymers. The hydroxyl number (OH#) measures the concentration of hydroxyl groups within the polyol. The ...

The method of determining the hydroxyl number in polyols and oxo alcohols specified in DIN EN ISO 4629-2 derives its theory from the catalytic acetylation of the hydroxyl group. Once the intermediate ...

According to a study published in Water Research in April 2020, superoxide produces hydroxyl radicals in lake water. Hydroxyl radicals break down poorly biodegradable organic matter such as humic ...

The hydroxyl radical is the reactive oxygen species most cytotoxic to cells. A bioplastic-based hydroxyl radical scavenger that is more efficient than glutathione and vitamin C has been found to be ...

Polyurethanes, formed through the reaction of raw polyols with isocyanates, are one of the most widely used types of plastics today. By varying the starting materials, a diverse range of plastics can ...

A new analysis of maps of the near and far sides of the moon shows that there are multiple sources of water and hydroxyl in the sunlit rocks and soils, including water-rich rocks excavated by meteor ...