Chemical elements
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Element Holmium, Ho, Lanthanide





History of Holmium

Lanthanide Holmium was discovered by Swiss chemist Jacques-Louis Soret in 1878 - 1879 who, while he was working on erbia earth, noticed the aberrant spectrographic absorption bands of the then-unknown element and called it "Element X". In 1879 Swedish chemist Cleve extracted Soret's new substance, orange-coloured, which turned out to be "Element X" salts. Cleve had not added anything new about the element. However he named the holmia (after the Latin name for Cleve's home town, Stockholm).


Occurrence of Holmium

Lanthanide Holmium crustal abundance is 1.3x10-4 mass %, in sea water 2.2x10-7 mg/L. As other rare earth elements it is contained in many minerals, including gadolinite, monazite, bastnasite, euxenite and apatite.

Production of Holmium

Holmium is reduced from HoF3 by calcium

Neighbours



Chemical Elements

38Sr
87.6
Strontium
39Y
88.9
Yttrium
40Zr
91.2
Zirconium
66Dy
162.5
Dysprosium
67Ho
164.9
Holmium
68Er
167.3
Erbium
88Ra
226.0
Radium
89Ac
[227.0]
Actinium
104Rf
[257.0]
Rutherfordium

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