➤ It is found in the body mainly in the intercellular fluid.

➤ Regulates water-salt metabolism, osmotic pressure, activates amylase, participates in the functioning of cells, tissues and organs, transmission of nerve impulses, digestion, gastric juice formation, and promotes the excretion of metabolic products.

➤ Causes allergic reactions, xerosis, trichorrhexis, acute respiratory failure, hyperchloridemia, abdominal cramps, pharyngeal reflex, gastrointestinal disorders, cephalgia, loss of consciousness, weakness, arterial hypertension, hyperthermia, toxic pulmonary hydropertrophy.

➤ Hypochloridemia manifests itself in frailty, muscle hypotension, somnolence, memory impairment, xerostomia, ageversion, food refusal, dermatosis, alopecia, and tooth loss.

➤ HCl - 8.2-8.4% - the solution is used for anacid and hypocidal gastritis.

➤ NaCl (sodium chloride) - 0.9% - isotonic solution, simpler blood substitute 4-10% - hypertonic solution, for hypertonic dressings.

➤For disinfecting surgical equipment and surfaces in hospitals and medical offices.

➤ Use of chlorine-containing solutions in the treatment of hydrops.

➤ Used for the treatment of rheumatoid arthritis, discoid and systemic lymphatic leprosy.

➤ The use of chlorine water for the treatment of dermatoses: acne and eczema.

➤ Chlorine gas vapors irritate the respiratory system and cause asphyxiation, which can be fatal.

➤ Chloramine causes redness of the mucous membranes of the respiratory tract and eyes.

➤ Hydrogen chloride irritates the respiratory tract and epidermis around the eyeballs, causing spasms.

➤ Antidote: sodium thiosulfate, sodium bicarbonate, oxygen therapy.

➤ In the fifth century BC. Herodotus wrote about the rocky salt NaCl.

➤ Liquid chlorine is one of the strongest insulators.

➤ The isotope ³⁶Cl is the longest-lived - 310 thousand years.

➤ Cl₂ does not react with concentrated H₂SO₄.

➤ Cl₂ forms the crystalloid 8Cl₂ * 46H₂O.