High-purity Rare Earth Metal Series——High-purity Lanthanum Metal(La)

Basic Features:

Element Symbol	Atomic Number	Atomic Mass	Density (g/cm3)	Melting Point/℃	Boiling Point/℃
La	57	138.91	6.174	920	3464

 

Purity: 2N5~4N

Customizable Forms: block, columnar, sheet, powder, etc

Implementation Standards: GB/T 15677-2023or customization

Packaging Method: vacuum-packed, lined with plastic bags and packed in iron drums, protected by argon gas, 50kg per drum

Compositions:

Grade	RE	La/RE	The impurity content shall not exceed (ppm)									Standards
			RE	Si	Fe	Ca	Al	Cl-	C	O	W+Mo+Ti
La-4N	99.5	99.99	0.01	0.02	0.1	0.01	0.01	0.01	0.02	0.02	0.04	GB/T 15677-2023
La-3N	99.0	99.9	0.1	0.03	0.1	0.01	0.02	0.03	0.03	0.03	0.05
La-2N5	99.0	99.5	0.5	0.03	0.2	0.02	0.05	0.03	0.05	0.05	0.05

 

Product Application:

1. Non-ferrous metals fields: rare earth-iron alloys (containing 25% lanthanum) are manufactured for military fuses or civilian lighters.

2. Hydrogen storage material field: lanthanum-nickel alloys are used as the negative electrode of batteries, with high hydrogen absorption and release efficiency.

3. Electronic cathodes field: hexaboride lanthanum (LaB6) replaces radioactive thorium tungsten as a high-power electron emission source.

4. Optical coating field: high-purity lanthanum targets are used for laser lenses and CVD diamond film polishing, improving light transmittance.

5. Nuclear industry: foil/sheet materials capture neutrons to maintain the accuracy of reactor control.

6. Semiconductor reducing agent field: rare earth metals with large vapor pressure differences such as samarium and europium are prepared.

 

Technical advantages:

1. GDMS can detect over 70 impurity elements, with absolute purity of ≥ 99.99%.

2. The product has good consistency and high purity.