Description
Specifications Table
Product Name – Ammonium molybdate (para) hydrate, Puratronic™, 99.999% (metals basis excluding W), W 300ppm max
Quantity/Pack Size – 5g, 25g
Form – Crystalline powder/hydrate
Grade – Puratronic™ (99.999% metals basis, W ≤300ppm)
Application – Trace metal analysis, high-purity synthesis, catalytic research, semiconductor applications
Product Overview
This Puratronic™ grade ammonium molybdate hydrate delivers exceptional purity at 99.999% (metals basis excluding tungsten), with tungsten content strictly controlled below 300ppm. The ultra-low impurity profile makes it indispensable for applications where trace metal contamination could compromise results, such as in semiconductor manufacturing, advanced catalysis, or spectroscopic analysis. The para-hydrate form ensures consistent solubility and reactivity in aqueous systems while maintaining stability during storage. Unlike standard reagent grades, this material undergoes rigorous purification to eliminate residual metallic contaminants, particularly tungsten, which often interferes with molybdenum-based reactions. The fine crystalline structure dissolves rapidly without undissolved particulates, providing reliable performance in sensitive analytical protocols. Packaged under inert conditions to prevent moisture absorption and oxidation, it retains its high purity throughout the shelf life. Researchers working with molybdenum-dependent enzymes, corrosion inhibitors, or nano-material synthesis will benefit from its predictable stoichiometry and minimal batch-to-batch variation. The Puratronic™ certification guarantees compliance with the strictest industrial standards for high-purity inorganic chemicals.
FAQs
1. What is the difference between this Puratronic™ grade and standard ammonium molybdate?
This grade undergoes additional purification steps to achieve 99.999% metals basis purity with tungsten capped at 300ppm, whereas standard grades typically contain higher levels of tungsten (often 1000ppm or more) and other metallic impurities that can interfere with sensitive applications.
2. Can this product be used directly in electrochemical cells without further purification?
Yes, the ultra-low impurity profile makes it suitable for direct use in electrochemical applications where trace metals could affect redox potentials or electrode performance, though pre-drying may be recommended for anhydrous systems.
3. How does the tungsten content (300ppm max) impact molybdenum-specific reactions?
Tungsten at this controlled level minimizes competitive inhibition in molybdenum-dependent enzymatic assays or catalytic cycles, as tungsten often occupies the same active sites as molybdenum but with different reactivity.
4. What is the typical shelf life when stored unopened at room temperature?
When stored in its original packaging under dry conditions, the product remains stable for at least 36 months, with no significant degradation in purity or solubility.
5. Are there any known incompatibilities with common lab solvents?
The hydrate form is stable in water and polar solvents like ethanol or acetone but may decompose in strongly acidic or basic non-aqueous systems (e.g., concentrated sulfuric acid or sodium hydroxide solutions).
