Ammonium Heptamolybdate
Brand hongtuo
Product origin China
Delivery time 7-15 days
Supply capacity 20000 MT/Year
1. We have our own production base and the first intelligent rotary kiln system in China, which enables stable production of ammonium heptamolybdate for petroleum refining catalysts, with a monthly output of hundreds of tons, supporting long-term procurement and multi-specification customization.
2. We can provide ammonium heptamolybdate for petroleum refining catalysts with analysis/conformity certificates, certificates of origin and other required export documents.
3. Our technical team can assist customers in the selection, formulation adaptation, and usage guidance of ammonium heptamolybdate for petroleum refining catalysts.
Introduction of hexaammonium heptamolybdate tetrahydrate:
Hexaammonium heptamolybdate tetrahydrate (chemical formula: (NH₄)₆Mo₇O₂₄) is an inorganic compound belonging to the class of isopolyacid salts, in the form of colorless crystals. The hydrate of hexaammonium heptamolybdate tetrahydrate loses crystal water at 90℃ and decomposes at 190℃. The pH value of the aqueous solution is between 5-6. It can generate molybdic acid and ammonium salts when it encounters acid. Hexaammonium heptamolybdate tetrahydrate is mainly used in catalyst preparation (such as petroleum cobalt molybdenum catalyst), metal molybdenum production, pigment chemicals, metal surface treatment agents and trace element fertilizers. The aqueous solution of hexaammonium heptamolybdate tetrahydrate can determine the phosphorus content and can also be used as a raw material for the production of acrylonitrile catalysts. We Hongtuo produces it through the production line independently developed by ourselves, taking advantage of the acid washing process to remove impurities in molybdenum oxide, solving the technical problem of poor adaptability of the water washing production process to the raw material molybdenum oxide. It is the first process in China.
Parameters of ammonium heptamolybdate CAS No:
| CAS number | 12054-85-2 |
| Purity | 99.30% |
| Molecular formula | ( NH4 ) 6Mo7O24 · 4H2O |
| Molecular weight | 1235.86 |
| Physical state at 20°C | Hard |
| Color | White crystals |
| Odor | Odorless |
| PH | 5 - 5.5 |
| Melting point / Freezing point [°C] | 90°C |
| Boiling point [°C] | 190°C |
| Density [g/cm³] | 2.498 |
| Water solubility (cold water) | 43 g / 100 ml |
Main methods for detecting ammonium heptamolybdate CAS No:
There are various methods for detecting ammonium heptamolybdate CAS No, including spectral analysis, electrochemical analysis and gravimetric analysis. We will choose different inspection methods according to the nature of the sample.
1. Spectroscopic analysis: Using ultraviolet-visible spectroscopy, infrared spectroscopy or absorption spectroscopy to analyze ammonium heptamolybdate CAS No, the characteristic information of the sample can be quickly obtained. Ultraviolet-visible spectroscopy is often used to determine the concentration of molybdenum-containing compounds, and quantitative analysis is achieved by comparing the standard curve.
2. Electrochemical analysis: Using the principle of electrode reaction to detect the concentration of molybdenum ions in ammonium heptamolybdate CAS No, it has the characteristics of high sensitivity and simple operation, and is suitable for detecting low-concentration samples.
3. Gravimetric analysis: The content of molybdenum in ammonium heptamolybdate CAS No is determined through chemical precipitation, filtration, drying and other steps. Although the operation is cumbersome, it has application value in high-precision detection.
Physical properties of ammonium heptamolybdate tetrahydrate CAS No and molybdenum acid:
Solubility: The solubility of ammonium heptamolybdate tetrahydrate CAS No at room temperature can reach 65.3g/100ml (tetrahydrate), which is significantly higher than the solubility of ammonium tetramolybdate.
Thermal stability: ammonium heptamolybdate tetrahydrate CAS No decomposes at 190℃, while the decomposition temperature of ammonium tetramolybdate is higher (about 280℃).
Application of ammonium heptamolybdate tetrahydrate CAS No:
Our ammonium heptamolybdate tetrahydrate CAS No widely serves multiple high-precision process links, and can be applied to the diverse needs of ceramics, glass manufacturing and other industries for high-purity molybdenum sources.
Ceramic and glass manufacturing:
The molybdenum element in ammonium heptamolybdate tetrahydrate CAS No. shows stability and unique color control effect at high temperatures, and is often used in the production of high-end glazes, colored glaze glass, and functional ceramics.
Typical customers: ceramic colorant factories / special glass manufacturers.
Application scenarios: colorant ingredients, glass glazing agents.
