Ammonium molybdate
General Product Information
| Article | Ammonium molybdate |
| Synonyms | Ammonium orthomolybdate, Diammonium molybdate |
| CAS No. | 13106-76-8 |
| EEG No. | – |
| EINECS No. | 236-031-3 |
| IMO | – |
| Tariff Code | 28417000 |
| UN No. | – |
| VLG/ADR | – |
Description
Ammonium molybdate is an inorganic compound. It is a white or pale yellow crystalline powder that is highly soluble in water but insoluble in ethanol. It is widely used in the industrial, agriculture and scientific sectors because of its versatile properties and Applications.
Characteristics
- Odor: –
- Hygroscopic: –
- Color: White or light yellow.
- Grade: Technical.
- Solubility: Highly soluble in water, insoluble in ethanol.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | (NH4)2MoO4 |
| Molar Weight | 196.01 g/mol |
| Melting Point | Approx. 170 °C. |
| Boiling Point | – |
| Density | 2.498 g/cm³ |
| Refractive Index | – |
| pH | – |
Interessing Links
- CAS Common Chemistry – Ammonium Molybdate
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Ammonium Molybdate – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Ammonium Orthomolybdate
Applications
Ammonium molybdate is applied in various ways, for instance:
1. Agriculture & Fertilizers
Ammonium molybdate is used as a source of molybdenum in fertilizers, essential for nitrogen fixation in plants such as legumes. It is used in liquid and powdered foliar and drip feed applications. In molybdenum-deficient areas, it supports the growth of crops such as broccoli and cauliflower.
2. Chemical & Petrochemical Industry
In the petrochemical industry, ammonium molybdate acts as a catalyst in processes such as the production of acrylonitrile. In addition, it is used in the manufacture of molybdenum powder, rod and wires, which are essential for applications in electronics and as a component in alloys
3. Analytical Chemistry
Ammonium molybdate serves as an analytical reagent for the quantitative determination of phosphates, silicates, arsenic acids and lead in aqueous solutions. It is also used in spectrophotometry and molecular biology for the detection of nucleic acids.
4. Electron Microscopy
In biology, it is used as a negative dye in cryo-electron microscopy, enhancing the contrasts of biological samples for detailed imaging.
5. Refractory & Corrosion-Resistant Coatings
Ammonium molybdate is used in the production of coatings that protect against corrosion and fire, particularly in the textile and paint industries.