WAlkali metal halide
WBrine
WCaliche
WCarbide
WCerebos
WCounterion
WElectride
WEstropipate
WKorean brining salt
WLithium carbonate
WMethoxide
WPotash
WSalt lake
WSalt pan (geology)
WSalt tectonics
WSoap
WSodium ethyl xanthate
WSoil salinity
WXanthate