Molybdenum Trioxide

Molybdenum trioxide is used for producing molybdenum metal and other molybdenum products. It also can be used for petrol catalyst and efficient flame retardant.
CAS NO.: 1313-27-5
Packing: Net 25kg bag or 1mt bag

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Model:
Mo 66.6%
Brand:
W&Q

1. Molecular Formula: MoO₃

2. CAS NO.: 1313-27-5

3. Moleculare Weight:143.94

4 . Property: Molybdenum trioxide is colorless to white or yellow-white odorless powder.

5. Specification:Mo66.6%

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6. Packing: net 25kg bags/1000kg bags

Molybdenum Trioxide

USAGE

Application Sector	Primary Function & Uses
Catalyst & Chemical Industry	Essential catalyst in petroleum refining (e.g., hydrodesulfurization) and chemical synthesis. Used as a reducing agent for specific chemicals like hydrogen peroxide .
Metallurgy & Material Production	Primary source material for producing metallic molybdenum, various molybdenum alloys, and other molybdenum compounds .
Analytical Chemistry	Used in colorimetric analysis to detect and measure substances like glucose, proteins, and heavy metals (e.g., lead, bismuth).
Electronics & Functional Materials	Key material for electrochromic devices (smart windows), gas sensors, and photocatalysts. Acts as a functional layer in solid-state batteries .
Traditional Manufacturing	Additive in glass, ceramics, and pigments to enhance color, thermal properties, and chemical resistance . Also used as a solid lubricant .

Industrial Metallurgy

Acts as a superior source of molybdenum for steel alloys, with molybdenum recovery yields exceeding 96% in production, offering a cost-effective alternative to ferromolybdenum.
Chemical Production & Catalysis

Serves as the essential starting material for producing most molybdenum chemicals, metal molybdenum, and various catalysts used in the petrochemical industry.
Scientific Research
(Nano/Material Science)

It exhibits valuable properties like outstanding photocatalytic activity for degrading pollutants, high sensitivity as a gas sensor, and utility in advanced electronics.

Industrial Metallurgy

Acts as a superior source of molybdenum for steel alloys, with molybdenum recovery yields exceeding 96% in production, offering a cost-effective alternative to ferromolybdenum.
Chemical Production & Catalysis

Serves as the essential starting material for producing most molybdenum chemicals, metal molybdenum, and various catalysts used in the petrochemical industry.
Scientific Research
(Nano/Material Science)

It exhibits valuable properties like outstanding photocatalytic activity for degrading pollutants, high sensitivity as a gas sensor, and utility in advanced electronics.

FAQs

What is molybdenum trioxide?

Molybdenum trioxide (MoO₃), also known as molybdic oxide or molybdenum(VI) oxide, is the most important commercial compound of molybdenum. It appears as a white or slightly yellowish crystalline powder at room temperature but can turn yellow when heated. It is the primary product of molybdenum mining and refining, from which almost all other molybdenum products are derived.
What are the main uses of molybdenum trioxide?

#1 Use: Metallurgy (~75% of consumption): Added directly to steel melts (e.g., in briquette form) or used to produce ferromolybdenum (FeMo). It is the most common vehicle for introducing molybdenum into alloys (steels, cast irons, superalloys).

#2 Use: Chemical Precursor: The starting point for virtually all other molybdenum chemicals:

Ammonium Dimolybdate (ADM) / Ammonium Heptamolybdate (AHM): Intermediate for catalysts and pure metal powder.

Molybdenum Metal & Powder: Via hydrogen reduction: MoO₃ + 3H₂ → Mo + 3H₂O.

Molybdenum Disulfide (MoS₂) Lubricants: Via chemical synthesis.

#3 Use: Catalyst & Pigment:

Catalyst: Used directly or as a support in petroleum refining (e.g., for acrylonitrile production) and hydrodesulfurization catalysts (after processing to the sulfide form).

Pigments: Used to create corrosion-inhibiting pigments (e.g., zinc molybdate, calcium phosphomolybdate) for primers and paints.

Specialized Use: Smoke Suppressant: Combined with zinc oxide or other compounds in plastics (like PVC) and wire/cable coatings to act as a smoke suppressant in case of fire.
Can molybdenum trioxide be used directly in agriculture?

Not typically as MoO₃ itself due to its very low solubility in water. It is first processed into soluble molybdates (like sodium or ammonium molybdate), which are then used in fertilizers and foliar sprays to correct molybdenum deficiency in crops (especially legumes).