Dispersants Illustration (IMAGE) Woods Hole Oceanographic Institution Caption Dispersants contain detergents, not unlike those people use to wash dishes, which help break oil into small droplets that can become diluted in the ocean. They also contain an organic solvent that helps the detergents (also known as surfactants) mix with both the oil and water. The solvent is not as effective on oil that has been oxidized by sunlight, so dispersants are less effective on oil that has floated on the sea surface for a few days, especially during sunny weather. Credit Natalie Renier, Woods Hole Oceanographic Institution Usage Restrictions with proper credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.