alkalines
Alkalines, or alkalis, are bases that dissolve in water to form alkaline (basic) solutions with a pH greater than 7. In chemistry, alkalis are a subset of bases that are soluble in water; many bases, by contrast, are insoluble and not considered alkalis. When dissolved, alkalis release hydroxide ions (OH−) that raise the solution’s pH and enable neutralization of acids.
Common alkalis include sodium hydroxide (NaOH), potassium hydroxide (KOH), calcium hydroxide (Ca(OH)2), and ammonium hydroxide (NH4OH).
Alkalinity in water chemistry refers to the capacity of water to neutralize added acid and is primarily
Safety and handling: many alkalis are caustic and corrosive, capable of causing chemical burns on skin and