Lanthanum
Lanthanum (La, CAS: 7439-91-0) is a soft, silvery-white, malleable metal belonging to the lanthanide series. With a molecular weight of 138.91 g/mol, it is a highly reactive element known for its catalytic properties. It finds significant application in the production of catalytic converters, glass manufacturing, and as an alloying agent in various metals.
Catalysis
Lanthanum is a key component in catalytic converters, improving the efficiency of vehicle emissions control. It is also used in fluid catalytic cracking catalysts within the petroleum industry to enhance the conversion of crude oil into gasoline.
Glass Manufacturing
As an additive in optical glass, lanthanum oxide increases refractive index and decreases dispersion. This makes it valuable for producing lenses and other optical components requiring high performance.
Alloying Agent
Lanthanum improves the properties of certain alloys, particularly mischmetal, which is used in lighter flints and certain steel manufacturing processes. It enhances the ductility and workability of metals.
Hydrogen Storage
Lanthanum-based alloys, such as LaNi5, exhibit excellent hydrogen absorption and desorption characteristics, making them suitable for research and development in solid-state hydrogen storage technologies.
| Molecular weight | 138.91 |
|---|---|
| Empirical formula | La |
| Assay | 99.9% trace metals basis |
| Form | ingot (under oil) |
| Boiling point | 3464 °C(lit.) |
| Density | 6.19 g/mL at 25 °C(lit.) |
| Melting point | 920 °C(lit.) |
Hazard statements
- H260In contact with water releases flammable gases
Precautionary statements
- P223Do not allow contact with water
- P231Handle under inert gas
- P370In case of fire
- P422
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3208 4.3 / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 14/15 |
| Safety statements (S) | 43-Neverusewater. |
| Supplemental hazards | Reacts violently with water. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Resistivity | 54 μΩ-cm |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Lanthanum used for?
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Lanthanum is used in catalytic converters, for manufacturing high-refractive index optical glass, as an alloying agent in metals, and in hydrogen storage research.
What is the CAS number and chemical formula for Lanthanum?
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The CAS number for Lanthanum is 7439-91-0, and its chemical formula is La.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Lanthanum with an assay of 99.9% trace metals basis. This product is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How is Lanthanum safely handled?
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Lanthanum reacts violently with water (H260) and must be handled with extreme caution. Store under oil and avoid any contact with moisture. Appropriate personal protective equipment, including eyeshields, gloves, and a full-face particle respirator, is essential. Never use water for fire extinguishing; use dry sand or specialized powder.
How is Lanthanum packed, shipped, and exported?
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Lanthanum is supplied as an ingot under oil to prevent oxidation and reaction with moisture. TSS is a global supplier and exporter of fine chemicals, adhering to all necessary regulations for safe and compliant international shipment.
How can I request a quote or sample for Lanthanum?
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To request a quote or a sample of Lanthanum, please contact our sales team through the website or by phone. Our experts will assist you promptly.
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