Hydrophile-lipophile balance number

{
  "id": "MLC-T-OAG-001917",
  "term": "Hydrophile-lipophile balance number",
  "field": "Oil and gas",
  "definition": "A dimensionless value on a scale indicating the degree to which a surfactant is water-soluble (hydrophilic) or oil-soluble (lipophilic). The scale, developed by Griffin, ranges from 0 to 20, where lower numbers denote more lipophilic behavior and higher numbers signify more hydrophilic character. Surfactants with a hydrophile-lipophile balance number from 8 to 18 are good oil-in-water emulsifiers, while those from 3 to 6 are better water-in-oil emulsifiers.",
  "subject": "Enhanced Oil Recovery",
  "url": "https://mlchart.com/terminology/oil-and-gas/hydrophile-lipophile-balance-number/"
}