hüdrokloriidhappega

hüdrokloriidhappega is Estonian for "with hydrochloric acid" and is used to indicate that hydrochloric acid (HCl) is present as a reagent or solvent in a chemical procedure, mixture, or prepared solution. In laboratory and industrial contexts the phrase accompanies instructions, recipe lists, and protocol steps to specify that reactions should be performed with HCl or that a sample has been acidified using hydrochloric acid.

Hydrochloric acid is a colorless, highly pungent strong mineral acid that forms an aqueous solution HCl(aq). Concentrated solutions are typically about 37% HCl by weight with a density around 1.18 g/mL. It is highly soluble in water, exothermic when diluted, and corrosive to most materials, especially metals. The acid releases hydrochloric acid fumes that can irritate the eyes, skin, and respiratory tract.

Common applications include pH adjustment and acidification in chemical synthesis, digestion of samples for analysis, metal cleaning and pickling, and use as a processing aid in some food and beverage operations where permitted. It is also used in laboratories for reactions that require strong acidic conditions and for protonation steps in organic synthesis.

Safety considerations include wearing eye protection, gloves, and a lab coat; working in a well-ventilated area or fume hood; and storing HCl in corrosion-resistant containers away from bases and strong oxidizers. HCl fumes are irritating, and contact with skin or eyes can cause burns. Hydrochloric acid should be stored sealed and clearly labeled to maintain safe handling.

Linguistically, the comitative suffix -ga in Estonian attaches to chemical nouns to form phrases such as hüdrokloriidhappega, meaning "with hydrochloric acid." In protocols it often appears with verbs like lahustada (to dissolve) or other action verbs that indicate using HCl.