WChemical compound
WBase (chemistry)
WBinary phase
WBleach activator
WCharge-transfer band
WChromophore
WConcentrate
WDimer (chemistry)
WFuregrelate
WIonic compound
WMolecular solid
WQuaternary phase
WSolvent
WStabilizer (chemistry)
WTernary phase
WTriazole
WTriazolium salt