Tech Serve Solutions

Molybdenum

CAS 7439-98-7MoCatalysis & Inorganic

Molybdenum (CAS: 7439-98-7, Formula: Mo, MW: 95.94 g/mol) is a lustrous, silvery-white, hard metal. It is valued for its high melting point, excellent electrical conductivity, and resistance to corrosion. Molybdenum finds critical applications in high-temperature alloys, catalysts, lubricants, and as a precursor in advanced materials science, including thermoelectric applications.

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Molybdenum (Mo) — chemical element, CAS 7439-98-7; Chemistry, fine chemical supplied by Tech Serve Solutions
Alternative EnergyChemical SynthesisMaterials ScienceMetal and Ceramic ScienceMetalsMolybdenumThermoelectric Materials
01 /Applications

Catalysis

Molybdenum compounds are widely used as catalysts in petrochemical processes, such as hydrodesulfurization. Its ability to facilitate specific chemical reactions makes it indispensable in refining and chemical synthesis.

Alloys and Superalloys

Added to steel, molybdenum significantly increases hardness, toughness, and resistance to corrosion and wear. This makes it vital for high-strength alloys used in aerospace, automotive, and industrial machinery.

Thermoelectric Materials

Molybdenum and its compounds are investigated and utilized as precursors for thermoelectric materials, which convert heat energy into electrical energy and vice versa, finding use in waste heat recovery and solid-state cooling.

Lubricants

Molybdenum disulfide (MoS2) is an excellent solid lubricant, especially under extreme pressure and high temperatures where traditional liquid lubricants fail. It is used in greases and dry-film coatings.

02 /Properties
Molecular weight95.94
Empirical formulaMo
Assay99.9% trace metals basis
Formpowder
Boiling point4612 °C(lit.)
Density10.3 g/mL at 25 °C(lit.)
Particle size<150 μm
Melting point2617 °C(lit.)
Impurities tested5% Tungsten
03 /Safety & handling

Precautionary statements

  • P210Keep away from heat, sparks and open flames. No smoking
Protective equipmentEyeshields, 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 3089 4.1/PG 2
Water hazard class (WGK, DE)nwg

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
7439-98-7
MDL number
MFCD00003465
PubChem substance
24856166
05 /Additional specifications
Resistivity5.0 μΩ-cm, 20°C
Thickness0.1 mm
06 /Quality & supply

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.

07 /Frequently asked questions

What is Molybdenum used for?

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Molybdenum is used in high-temperature alloys, as a catalyst in petrochemical processing, as a solid lubricant (molybdenum disulfide), and as a precursor for thermoelectric materials.

What is the CAS number and formula for Molybdenum?

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The CAS number for Molybdenum is 7439-98-7, and its chemical formula is Mo.

What grade and purity does Tech Serve Solutions supply for Molybdenum?

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Tech Serve Solutions supplies Molybdenum with an assay of 99.9% (trace metals basis), with 5% Tungsten as an impurity. We do not represent this product as USP, BP, or EP grade.

How should Molybdenum be handled safely?

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Handle Molybdenum with appropriate personal protective equipment, including eyeshields, gloves, and a full-face particle respirator (N100 US / P3 EN143). Refer to the safety data sheet for comprehensive handling instructions.

Is Molybdenum shipped internationally by TSS?

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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Molybdenum.

How can I request a quote or sample of Molybdenum?

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Please contact our sales team directly via our website or phone to request a quote or sample of Molybdenum.

Need Molybdenum in a specific grade or volume?