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Ho
Holmium


Atomic no.:
67
Atom. weight: 164
Density: 8.795
Class:
Rare earth metal
Melting point: 1474°C
Boiling point: 2700°C
Colour: Array
   
Discoverer: Jaques Louis Soret und Marc Abraham Delafontaine
Place: Genf, Switzerland
Year: 1878

Discovered in 1878 by P.T. Cleve in Uppsala, Sweden, and independently in Geneva by M. Delafontaine and J-L Soret. Holmium is a member of the lanthanide group and whose properties closely resemble those of erbium and dysprosium. It has an abundance of 1.4 ppm in the earth's crust. It is soft and malleable and is slowly attacked by oxygen and water. It is soluble in acids. Applications for holmium are limited, but it is used as a flux concentrator in magnetic fields and also as a poison in nuclear reactors where it assists in keeping the chain reaction under control.

Source: ©Goodfellow.com

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Complete Rare Earth Set in ampoules under argon!

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smart-elements - Complete high pure Rare Earth Set in acrylic showcase!

Complete high pure Rare Earth Set in acrylic showcase!

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smart-elements - 3 beads of neodymium-, praseodymium- and Erbium glass -

3 beads of neodymium-, praseodymium- and Erbium glass -

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smart-elements - Holmium(III)-Oxide 99,99% - Ho2O3 - 10.0 grams

Holmium(III)-Oxide 99,99% - Ho2O3 - 10.0 grams

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smart-elements - Complete Rare Earth Set in ampoules under argon!

Complete Rare Earth Set in ampoules under argon!

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smart-elements - Pure Holmium Metal hemispheric ingot - 99.95% purity

Pure Holmium Metal hemispheric ingot - 99.95% purity

Amount: ~80 - 82 g
Purity :99,95%


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smart-elements - Acrylic Element cube - Holmium Ho - 50mm

Acrylic Element cube - Holmium Ho - 50mm

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smart-elements - Holmium Metal sublimed 99,99% purity in ampoule under argon!

Holmium Metal sublimed 99,99% purity in ampoule under argon!

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smart-elements - Holmium Metal sublimed dendritic pieces - 34.47 grams

Holmium Metal sublimed dendritic pieces - 34.47 grams

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smart-elements - Holmium Metal sublimed dendritic pieces - 45.85 grams

Holmium Metal sublimed dendritic pieces - 45.85 grams

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smart-elements - Holmium Metal sublimed dendritic pieces - 55.09 grams

Holmium Metal sublimed dendritic pieces - 55.09 grams

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smart-elements - Holmium Metal sublimed dendritic pieces - 100 grams

Holmium Metal sublimed dendritic pieces - 100 grams

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smart-elements - High purity Holmium Metal crystals sealed vial under Argon

High purity Holmium Metal crystals sealed vial under Argon

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smart-elements - Acrylic Element cube - Holmium Ho - 50mm

Acrylic Element cube - Holmium Ho - 50mm

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smart-elements - Acrylic Element cube - Holmium Ho - 50mm

Acrylic Element cube - Holmium Ho - 50mm

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smart-elements - Pure Holmium Metal rod - 99.9% purity Ø10mm x 70mm

Pure Holmium Metal rod - 99.9% purity Ø10mm x 70mm

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Purity :99.9%


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smart-elements - Acrylic Element cube - Holmium Ho - 50mm

Acrylic Element cube - Holmium Ho - 50mm

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smart-elements - Acrylic Element cube - Holmium Ho - 50mm

Acrylic Element cube - Holmium Ho - 50mm

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smart-elements - Pure Holmium Metal hemispheric ingot - 99.95% purity 80.64 g

Pure Holmium Metal hemispheric ingot - 99.95% purity 80.64 g

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smart-elements - Pure Holmium Metal hemispheric ingot - 99.95% purity 82.15 g

Pure Holmium Metal hemispheric ingot - 99.95% purity 82.15 g

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