
Ammonium Molybdate CAS 7664-34-4 Powder Crystal
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Ammonium Molybdate CAS 7664-34-4 powder crystal
Ammonium Molybdate is a high-quality inorganic molybdate compound with stable chemical properties, widely used in industrial production, agriculture, and laboratory fields globally. It has passed REACH registration, and MSDS download is available for customers to obtain detailed safety, technical and compliance information.


Product Synonyms
The common synonyms of Ammonium Molybdate include: Ammonium molybdate(VI), Diammonium molybdate, Molybdic acid diammonium salt, Ammonium tetraoxomolybdate, and its molecular formula is
.
Product Properties & Physical Characteristics
Ammonium Molybdate has a molecular formula of
and a molecular weight of 196.01. Its CAS number is 7664-34-4. Under normal temperature and pressure, it appears as white or slightly yellowish-green powder or crystal, with no odor. It is highly soluble in water, but insoluble in ethanol and acetone. It has a certain hygroscopicity and needs to be stored in a sealed manner. The aqueous solution of Ammonium Molybdate is weakly acidic. It is stable at room temperature but decomposes easily when heated, releasing ammonia gas. It is non-toxic and non-flammable, with good chemical stability under normal storage conditions.
Common Product Specifications
|
Index Name |
Specification (Industrial Grade) |
|
Ammonium Molybdate [(NH₄)₂MoO₄] Content |
≥99.0% |
|
Mo Content |
≥54.0% |
|
Moisture Content |
≤0.50% |
|
Insoluble Substances in Water |
≤0.05% |
|
Iron (Fe) Content |
≤0.001% |
|
Appearance |
White or slightly yellowish-green powder or crystal |
Product Applications
Ammonium Molybdate is a versatile inorganic chemical raw material, widely used in various B2B fields. In the agricultural industry, it is used as a trace element fertilizer, supplementing molybdenum needed for crop growth, promoting nitrogen fixation of leguminous crops, and improving crop yield and quality. In the industrial field, it serves as a key raw material for the production of molybdenum trioxide, molybdenum metal, and other molybdenum compounds; it is also used as a catalyst in the petrochemical industry for hydrodesulfurization reactions, improving the quality of petroleum products. In the laboratory and analytical field, it is used as an analytical reagent for the detection of phosphorus, arsenic, and other elements. Additionally, Ammonium Molybdate is applied in the manufacturing of pigments, dyes, and ceramics, as well as in the electroplating industry to improve the corrosion resistance of plating layers.
FAQ
Q1: How to store Ammonium Molybdate to prevent moisture absorption and decomposition?
A1: Ammonium Molybdate has certain hygroscopicity and should be stored in a sealed, moisture-proof container, placed in a cool, dry, and well-ventilated warehouse. It should be kept away from high temperatures, open flames, and acidic substances to avoid decomposition. For detailed storage guidelines, please refer to the MSDS download document.
Q2: Is Ammonium Molybdate compliant with REACH regulations and international import standards?
A2: Yes, Ammonium Molybdate has passed REACH registration, fully complying with European Union regulations and international industrial standards. It meets the import requirements of global markets such as Europe, America, and Southeast Asia, ensuring smooth customs clearance for international procurement.
Q3: Can Ammonium Molybdate be used directly as agricultural fertilizer? What are the application methods?
A3: Yes, Ammonium Molybdate can be used directly as a trace element agricultural fertilizer. It can be applied by foliar spraying (diluted into an appropriate concentration) or mixed with other fertilizers for base application, which can effectively supplement molybdenum elements for crops and promote growth. Specific application dosages and methods can be found in the MSDS download document or technical guidelines.
For more detailed technical parameters, safety instructions, and compliance information of Ammonium Molybdate, please use the MSDS download service to obtain the complete and professional document.

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