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VWR Ammonium heptamolybdate tetrahydrate, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. analytical reagent
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Specifications:
| Application | Organic Synthesis | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | (NH₄)₆Mo₇O₂₄·4H₂O |
Ammonium heptamolybdate tetrahydrate, with the formula (NH₄)₆Mo₇O₂₄·4H₂O, is a high-purity, multi-functional reagent used in analytical chemistry, catalysis, molybdenum-based compound synthesis, and pharmaceutical quality control. This AnalaR NORMAPUR® grade product conforms to both ACS and Ph. Eur. standards, ensuring reliability and regulatory compliance in sensitive testing environments.
Key Features
- High Purity (ACS, Ph. Eur. Compliant): Meets stringent purity standards for pharmaceutical and analytical use
- Consistent Molybdenum Content: Assay calculated as MoO₃ ranges between 81.0–83.0%
- Water-Soluble: Forms clear solutions for colorimetric, gravimetric, and reagent preparations
- Multi-Purpose Analytical Reagent: Ideal for phosphate detection, trace metal analysis, and catalyst development
- Low Trace Impurities: Controlled levels of heavy metals, alkali/alkaline earths, and anions for reproducibility
Chemical and Physical Properties
| Property | Specification |
|---|---|
| Chemical Name | Ammonium heptamolybdate tetrahydrate |
| CAS Numbers | 12054-85-2 / 12027-67-7 |
| Molecular Formula | (NH₄)₆Mo₇O₂₄·4H₂O |
| Molecular Weight | 1235.86 g/mol |
| Density | 2.498 g/cm³ (20 °C) |
| Storage Temperature | Ambient |
| EINECS Number | 234-722-4 |
| MDL Number | MFCD00167059 |
| Merck Index | 13,00536 |
| Hazard Classification | Irritant |
Specification Test Results
| Parameter | Limit |
|---|---|
| Assay (as MoO₃) | 81.0–83.0% |
| Heavy Metals (as Pb) | ≤10 ppm |
| Insolubility in Water | ≤50 ppm |
| Mg & Alkaline Earth Metals | ≤0.02% |
| Chloride (Cl⁻) | ≤5 ppm |
| Nitrate (NO₃⁻) | ≤0.05% |
| PO₄, AsO₄, SiO₄ (as PO₄) | ≤5 ppm |
| PO₄, AsO₄, SiO₄ (as SiO₂) | ≤10 ppm |
| Sulfate (SO₄²⁻) | ≤50 ppm |
| Copper (Cu) | ≤10 ppm |
| Iron (Fe) | ≤5 ppm |
| Potassium (K) | ≤100 ppm |
| Magnesium (Mg) | ≤50 ppm |
| Sodium (Na) | ≤100 ppm |
| Lead (Pb) | ≤10 ppm |
| Conforms to ACS / Reag. Ph. Eur. | Passes Test |
Applications
- Analytical Chemistry: Used in phosphate and silica determination, and as a reagent for colorimetric and gravimetric assays
- Catalysis: Precursor for molybdenum-based catalysts in oxidation and hydrodesulfurization
- Pharmaceutical Quality Control: Complies with ACS and Ph. Eur. for analytical method validation
- Inorganic Synthesis: Starting material for producing molybdenum salts and complexes
- Nutrient & Fertilizer Testing: For Mo content analysis in soil and plant samples
VWR Ammonium Heptamolybdate Tetrahydrate, AnalaR NORMAPUR® is a premium-quality analytical reagent offering high molybdenum content and low impurity levels. Trusted across research, environmental testing, and regulated industries, it meets the needs of laboratories requiring precise and reliable performance under ACS and Ph. Eur. standards.
- Pack Size: 1kg 100g 500g