káliumhidrogénkarbonátot
Káliumhidrogén refers to chemical compounds containing the potassium cation (K+) and the hydrogen anion (H-). These compounds are often referred to as potassium hydrides. The most common and well-studied example is potassium hydride (KH). Potassium hydride is an ionic compound formed between potassium, a highly electropositive alkali metal, and hydrogen. It is a strong base and a powerful reducing agent. When reacting with water, potassium hydride produces potassium hydroxide and hydrogen gas, a highly exothermic reaction. Potassium hydride is typically prepared by the reaction of molten potassium with hydrogen gas at elevated temperatures. Its reactivity makes it useful in organic synthesis for deprotonation reactions and as a reducing agent in various chemical transformations. Other less common potassium hydrogen compounds might exist in specific complex chemical environments or as intermediates, but KH is the primary substance generally understood by this nomenclature. The handling of potassium hydride requires strict precautions due to its reactivity with air and moisture.