cloridi
Cloridi refers to compounds containing chlorine as an anion, typically in the form of the chloride ion (Cl⁻). This ion is a single chlorine atom that has gained an electron, giving it a negative charge. Chloride is one of the most abundant ions in seawater and is essential for many biological processes. In human physiology, it plays a crucial role in maintaining fluid balance, nerve impulse transmission, and the production of stomach acid. Sodium chloride (NaCl), commonly known as table salt, is the most familiar example of a chloride compound. Other common chloride salts include potassium chloride (KCl) and calcium chloride (CaCl₂). These compounds are often soluble in water and can form electrolytes in solution. Industrially, chloride compounds are important in the production of various chemicals, including chlorine gas and hydrochloric acid. The presence of chloride ions in water can be an indicator of pollution, as it can originate from sources like sewage, industrial waste, or agricultural runoff. Environmental regulations often set limits on chloride concentrations in drinking water and surface waters due to its potential impact on aquatic life and infrastructure.