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Erbium is a chemical element; it has symbol Er and atomic number 68. A silvery-white [7] solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. It is a lanthanide, a rare-earth element, originally found in the gadolinite mine in Ytterby, Sweden, which is the source of the element's name.
Erbium (III) chloride is a violet compounds that can be formed by first heating erbium (III) oxide and ammonium chloride to produce the ammonium salt of the pentachloride ( [NH 4] 2 ErCl 5) then heating it in a vacuum at 350-400 °C. [9][10][11] It forms crystals of the AlCl3 type, with monoclinic crystals and the point group C 2/m. [12]
Naturally occurring erbium (68 Er) is composed of six stable isotopes, with 166 Er being the most abundant (33.503% natural abundance).Thirty-nine radioisotopes have been characterized with between 74 and 112 neutrons, or 142 to 180 nucleons, with the most stable being 169 Er with a half-life of 9.4 days, 172 Er with a half-life of 49.3 hours, 160 Er with a half-life of 28.58 hours, 165 Er ...
Erbium oxide nanoparticles also possess photoluminescence properties. Erbium oxide nanoparticles can be formed by applying ultrasound (20 kHz, 29 W·cm −2) in the presence of multiwall carbon nanotubes. The erbium oxide nanoparticles that have been produced using ultrasound are erbium carboxioxide, hexagonal and spherical geometry erbium oxide.
2 Physical properties. 3 Chemical properties. 4 Applications. 5 References. Toggle the table of contents. Erbium(III) nitrate. ... Erbium(III) nitrate is an inorganic ...
Terbium is a chemical element; it has the symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable and ductile. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas.
Erbium (III) chloride forms crystals of the AlCl3 type, with monoclinic crystals and the point group C 2/m. [2] Erbium (III) chloride hexahydrate also forms monoclinic crystals with the point group of P 2/ n (P 2/ c) - C42h. In this compound, erbium is octa-coordinated to form [Er (H2O)6Cl2]+ ions with the isolated Cl− completing the structure.
Erbium oxide. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references. Erbium (III) acetate is the acetate salt of erbium, with the proposed chemical formula of Er (CH 3 COO) 3. It can be used to synthesize some optical materials.