He is known for the Bancroft rule: a predominantly hydrophilic emulsifier stabilizes an oil-in-water emulsion, whereas a predominantly hydrophobic emulsifier stabilizes a water-in oil emulsion.
Korea under Japanese rule | Ja Rule | away goals rule | Cloistered rule | Ten Minute Rule | Taiwan under Japanese rule | Ann Rule | Anne Bancroft | Star Wars: Darth Bane: Rule of Two | The Rule of Four | Rule Britannia | Rule 5 draft | mob rule | Hubert Howe Bancroft | Home Rule League | Golden Rule | Forced labour under German rule during World War II | Effie Bancroft | District of Columbia home rule | Ann Bancroft | William Harris Rule | Rule of St. Augustine | Richard Bancroft | Let Love Rule | Hückel's rule | Designated Player Rule | Cameron Bancroft | Bancroft | Year and a day rule | Wizard's First Rule |