1.0 2015-02-28 11:55:52 UTC 2025-11-19 03:00:13 UTC FDB030056 Dysprosium Dysprosium, also known as 66dy or disprosio, is a member of the class of compounds known as homogeneous lanthanide compounds. Homogeneous lanthanide compounds are inorganic compounds containing only metal atoms, with the largest atom being a lanthanide atom. Dysprosium can be found in red beetroot, romaine lettuce, and spinach, which makes dysprosium a potential biomarker for the consumption of these food products. Dysprosium was first identified in 1886 by Paul Émile Lecoq de Boisbaudran, but it was not isolated in pure form until the development of ion exchange techniques in the 1950s. Dysprosium has relatively few applications where it cannot be replaced by other chemical elements. It is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications, and as a component of Terfenol-D (a magnetostrictive material). Soluble dysprosium salts are mildly toxic, while the insoluble salts are considered non-toxic . Dy 162.5 163.92918 dysprosium dysprosium 7429-91-6 [Dy] InChI=1S/Dy KBQHZAAAGSGFKK-UHFFFAOYSA-N belongs to the class of inorganic compounds known as homogeneous lanthanide compounds. These are inorganic compounds containing only metal atoms, with the largest atom being a lanthanide atom. Homogeneous lanthanide compounds Inorganic compounds Homogeneous metal compounds Homogeneous lanthanide compounds Homogeneous lanthanide f-block element atom lanthanoid atom logp 0 ChemAxon iupac dysprosium ChemAxon average_mass 162.5 ChemAxon mono_mass 163.92918 ChemAxon smiles [Dy] ChemAxon formula Dy ChemAxon inchi InChI=1S/Dy ChemAxon inchikey KBQHZAAAGSGFKK-UHFFFAOYSA-N ChemAxon polar_surface_area 0 ChemAxon refractivity 0 ChemAxon polarizability 1.78 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 0 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Red beetroot Type 1 specific Beta vulgaris var. rubra 0.00006 0.00006 0.00006 mg/100 g Romaine lettuce Type 1 specific Lactuca sativa L. var. longifolia 0.0 0.0 0.0 mg/100 g Spinach Type 1 specific Spinacia oleracea 3562 0.000185 0.00023 0.00014 mg/100 g