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Key Documents

693510

Sigma-Aldrich

Gadolinium-silicon-germanium alloy

Gd5Si2Ge2, ≥99% trace metals basis

Synonym(s):

Gadolinium germanium silicide

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About This Item

Linear Formula:
Gd5Ge2Si2
CAS Number:
Molecular Weight:
987.70
MDL number:
UNSPSC Code:
11101711
PubChem Substance ID:
NACRES:
NA.23

Assay

≥99% trace metals basis

form

powder and chunks

composition

Gadolinium, 79.5 wt. %
Germanium, 14.8 wt. %
Silicon, 5.7 wt. %

mp

1675 °C

density

5.7 g/mL at 25 °C

SMILES string

[Si].[Ge].[Gd]

InChI

1S/Gd.Ge.Si

InChI key

LVKVKSQVTJLPDE-UHFFFAOYSA-N

Application

This material is used for research in the area of magnetic refrigeration. Alloy with a giant magnetocaloric effect.

Physical properties

Curie Temperature: ~270 K

Legal Information

Sold under license to US Patents 5,887,449 and 5,743,095 for use in magnetic refrigeration.

Pictograms

Flame

Signal Word

Warning

Hazard Statements

Hazard Classifications

Water-react 3

Storage Class Code

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Articles

Today, near-room-temperature refrigeration is almost entirely based on a vapor-compression refrigeration cycle.

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