Alkaline substance refers to chemical compounds in which the basic hydroxide (OH-) ion is united with a metallic ion, such as sodium hydroxide (NaOH) or potassium hydroxide (KOH).
These substances impart alkalinity to water and are employed for neutralization of acids. Lime is the most commonly used alkaline material in wastewater treatment.
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Alkali (Alkali refers to an alkaline, or basic, chemical ...)
Chemical (A chemical substance is any material with a ...)