Place of Origin: | China |
Brand Name: | OEM |
Certification: | CE/ISO9001 |
Minimum Order Quantity: | Negotiable |
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Price: | Negotiable |
Packaging Details: | 100g /vacuum bag |
Delivery Time: | 5-7 working days after receiving payment details |
Payment Terms: | T/T, Western Union, L/C |
Product Name: | Europium Sulphide Powder | Molecular Formula: | EuS |
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CAS: | 12020-65-4 | Color: | Black |
Molar Mass: | 184.03 G/mol | Melting Point: | 2,250 °C (4,080 °F; 2,520 K) |
High Light: | chemical powder,metal raw material |
CAS 12020-65-4 Europium Sulphide EuS use as laser window materials
Europium (II) sulfide is the inorganic compound with the chemical formulaEuS.
It is a black, air-stable powder.
Its Curie temperature (Tc) is 16.6 K. Below this temperature EuS behaves like a ferromagnetic compound, and above it exhibits simpleparamagntic properties.
EuS is stable up to 500 °C in air, when it begins to show signs of oxidation.
In an inert environment it decomposes at 1470 °C.
Specification of Europium Sulphide EuS
Main Component: EuS/TRES >99.95% |
|
Rare Earth Impurities Content (%) |
Non—RE Impurities Content (%) |
La <0.0001 |
Fe <0.0003 |
Ce <0.0001 |
Si <0.0025 |
Pr <0.0001 |
Al <0.0005 |
Nd <0.0001 |
Cu <0.0003 |
Y <0.0001 |
Pb <0.0003 |
Sm <0.0001 |
S <1.0 |
Gd <0.0001 |
C <0.003 |
Tb <0.0001 |
|
Dy <0.0001 |
|
Ho <0.0001 |
|
Er <0.0001 |
|
Tm <0.0001 |
|
Yb <0.0001 |
|
Lu <0.0001 |
|
EuS crystallizes in face-centered cubic (FCC) crystal lattice with the rock salt structure.
Both europium and sulfur have octahedral coordination geometry with a coordination number of six.
The Eu-S bond lengths are 2.41 Å.
Application of Europium Sulphide EuS
In the past few decades, a new interest has been exhibited in the synthesis of EuS, as well as its oxygen analog EuO, because of their potential use as laser window materials, insulating ferromagnets, ferromagnetic semiconductors, and magnetoresistant, optomagnetic, and luminescent materials.
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