Gadolinium Metal Gd CAS 7440-54-2 For Magnetic Refrigeration Additive

The metal gadolinium, with the element symbol Gd, is the 64th element in the periodic table and belongs to the rare earth metal. It has a silvery white color, soft texture and good ductility.
Gadolinium has attracted much attention because of its unique magnetic properties. At room temperature, gadolinium behaves as paramagnetic, but becomes ferromagnetic when cooled to low temperatures, a property that is widely used in the manufacture of permanent magnet materials to improve their properties. In addition, gadolinium is an important component in the production of nuclear magnetic resonance contrast agents, and plays an important role in medical diagnosis by improving the recognition rate of diseased tissue through its strong spin magnetic moment.

product details

Feature

Name: Gadolinium metal

Molecular formula: Gd

CAS: 7440-54-2

Molecular weight: 157.25

Description

Gadolinium an be made into various forms: Gadolinium Foil, Gadolinium block, Gadolinium sheet, Gadolinium powder. Gadolinium darkens in the humid air, and soluble in acid, insoluble in water. Gadolinium has the highest thermal neutron capture surface, which can be used as reactor control material and protection material. Ultra-low temperature near absolute zero can be obtained by magnetizing and cooling gadolinium salt.

Specification

Name		Gd_4N	Gd_3N	Gd_2N5
Molecular formula		Gd	Gd	Gd
CAS		7440-54-2	7440-54-2	7440-54-2
Total rare earth TREM	%	≥99.0	≥99.0	≥99.0
Gd/TREM	%	≥99.99	≥99.90	≥99.50
Total rare earth impurities	%	≤0.01	≤0.10	≤0.50
Fe	%	≤0.01	≤0.02	≤0.03
Si	%	≤0.005	≤0.01	≤0.01
C	%	≤0.01	≤0.02	≤0.03
Property		As-cast or crystalline, silver-gray luster
Application area		Preparation of magnetically cooled working medium, magneto-optical recording material, tube material for nuclear reactor, and non-ferrous metal alloy additives
Package		Anti-oxidation measures sealed packaging, flexible packaging according to customer needs

Packing: Under Argon atmosphere or vacuum packaging, 25kg or 50kg per bag, also provide small package: 100g, 500g, 1kg, 5kg and other small packaging.

Used

In the atomic energy industry, Gadolinium isotopes are used as control rods and neutron absorbers for LWR and fast breeder reactors. It is used to preparation of magnetic cooling working medium and magneto-optical recording material. The water-soluble paramagnetic complex is a kind of NMR developer in medical treatment.