Assertion: wetting agent's group | /r/HasProperty | anionic
Facets:
Source sentences:
text: Depending on their ionization or charge, surfactants are commonly separated into four major groups: anionic, cationic, nonionic and amphoteric.
text: Surfactants are classified according to their chemical structure and, more specifically, their polar group: anionic, cationic, electroneutral and non-ionic (see figure 1).