kalsíums

Kalsíums is a chemical element with the symbol Ca and atomic number 20. It is a soft, gray alkaline earth metal that is highly reactive. In its pure form, it is rarely found in nature. Kalsíums is the fifth most abundant element in the Earth's crust.

The most common form of kalsíums is as kalsíum ions (Ca2+). These ions play a crucial role in biological systems. In humans, kalsíums is essential for strong bones and teeth, as it is a major component of their structure. It is also vital for muscle contraction, nerve impulse transmission, and blood clotting. A deficiency in kalsíums can lead to conditions like osteoporosis, where bones become brittle.

Kalsíums compounds are widespread. Calcium carbonate (CaCO3) is found in rocks like limestone and marble, and it is the primary component of seashells and eggshells. Calcium oxide (CaO), also known as quicklime, is produced by heating calcium carbonate and is used in construction and manufacturing. Calcium chloride (CaCl2) is often used as a de-icing agent on roads.

Kalsíums is obtained industrially through electrolysis of molten calcium chloride. Its various compounds have numerous applications in industries ranging from agriculture to medicine and food production.