➤ Dispersive lasers emit wavelengths of 2.36 microns and are effective in the treatment of glaucoma and skin malignancies.

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➤ It is important for the production of radiopaque contrast agents.

➤ ¹⁸⁶Dy (Dysprosium) - is used to treat certain types of carcinoma, especially Kaposi's sarcoma and some types of bone melanoma.

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➤ Irritation of the respiratory tract and external skin caused by contact with the powder.

➤ In excessive quantities, vapors are produced that cause irritation of the mucous membranes and respiratory system.

➤ There is no specific antidote.

➤ The heaviest isotope of ¹⁶⁴ Dy in the natural mixture is 28.18%, and the lightest ¹⁵⁶Dy is a very rare 0.0524%.