A surfactant in which the hydrophile is positively charged.  Examples; quaternary ammonium salts.   (see RFF 750.10.01 - SURFACTANTS).

A surfactant in which the hydrophile is negatively charged.  Examples; sulfonates and sulfates.   (see RFF 750.10.01 - SURFACTANTS).

An oil that readily forms a stable emulsion or colloidal suspension in water.

The penetration of substances into the bulk of a solid or liquid.

The amount, in weight %, of titratable surfactant in a solution or formulation.  Almost every product has an active specification.

The surface retention of solid, liquid or gas molecules, atoms or ions by a solid or liquid.

An amine where some or all of the alkyl groups attached to the nitrogen contain hydroxyl functionality.  For example; triethanolamine (TEA), monisopropanolamine (MIPA).

The product of a reaction between an olefin, such as 1-dodecene or Tetramer-M, and an aromatic hydrocarbon, such as benzene, toluene or diphenyl oxide.

A surfactant in which the hydrophile has both positive and negative charges.  Examples; betaines and amine oxides.   (see RFF 750.10.01 - SURFACTANTS)

An additive used to suppress the foaming characteristics of a formulation in service.