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A chemical property of an aqueous system that implies that there are more hydroxyl ions (OH) in the system, or a potential to produce more hydroxyl ions, than there are hydrogen ions (H+), or potential to produce hydrogen ions.

Antonyms: acidity

Alternate Form: PfPm

See: alkalinealkalinity testbuffered mudcalcium carbonatecalcium hydroxidecarbon dioxidecarbonate ioncaustic potashcaustic sodaformaldehydelime mudneutralizationpHpH testphenolphthaleinsaltsiderite