Cadmium
Cd
48
112.41
1s22s22p63s23p63d104s24p64d10
5s2
Biological significance

➤ Cadmium has a strong toxic effect.

➤ It is not a trace element that is essential for the normal functioning of the body.

➤ It is mainly localized in the liver and kidneys.

➤ It acts as an inhibitor of thiol enzymes.

➤ Salts containing Cd normalize blood cholesterol levels, reduce the amount of vitamin C in organs and tissue structures.

➤ Affects phosphorus-calcium metabolism.

➤ The inhibitory effect of bile acids slows down the absorption of Cd into the walls of the gastrointestinal tract.

Excess in the body

➤ It affects vital organs such as the liver, kidneys, and lungs, and also damages bone tissue (osteoporosis).

➤ Causes inflammation of the mucous membranes of the respiratory tract (pharyngitis), nosebleeds. A slight increase in the amount of Cd in the body leads to hypoglycemia and osteomalacia. Cd compounds have a cumulative effect. The toxic effect of Cd is reduced in the presence of zinc acetate in food.

➤ The mixture of tobacco smoke contains a high concentration of Cd, 50% of which is absorbed in the structures of the lung sacs.

➤ It is characterized by teratogenic effects that slow down the synthesis of nucleic acids (DNA) in the fetus.

➤ It inhibits insulin metabolism, resulting in hyperglycemia.

Deficiency in the body

-

Drugs/dose

➤ CdTe-QDs 1-12 nm

➤ Cd(O₂CCH₃)₂(H₂O)₂ 1-10 µg/ml.

Conventional medicine

➤ Antiseptics with cadmium as one of their components are used in the treatment of infectious diseases and dermatological disorders.

Unconventional medicine

-

Toxic effect/antidote

➤ The development of uremia, pleuropulmonary shock, and bone disorders (osteoporosis).

➤ Increased risk of cancer.

➤ Antidote: Hemodialysis.

Ensuring the normal functioning of the respiratory process.

Interesting facts

➤ CdS is a mineral dye for orange, green, yellow, and blue.

➤ Cd is used to make control and emergency rods in nuclear reactors.

➤ The Weston cell (a galvanic cell with a constant emf of 1.018 V) uses Cd amalgam, CdSO4 crystals, and a solution of this salt.

Chemist Friedrich Stromeyer
on how he discovered Cadmium


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