Certificate of Analysis and technical specification for Ammonium Paratungstate, 99.9+% — CAS 11120-25-5. Applies to all consignments of this product and grade.
| Product Name | Ammonium Paratungstate, 99.9+% |
|---|---|
| C.A.S. Number | 11120-25-5 |
| Product Category | Amines, Amides & Nitrogen Compounds |
| Product Group | Amines & Amides |
| Grade / Standard | Fine chemical grade — assay on specification |
| Physical Form | Appearance as per specification |
| Country of Origin | India |
| Packing | Standard export packing — bags, drums, carboys, IBC or ISO tank as applicable |
| Storage | Cool, dry, well-ventilated place in tightly closed original packing |
| S. No. | Test Parameter | Specification | Typical Result | Method |
|---|---|---|---|---|
| 1 | Description | Appearance as per specification | Complies | Visual |
| 2 | Identification | Conforms to the structure of the substance | Complies | FTIR / Chemical test |
| 3 | Solubility | As per specification | Complies | Visual / Monograph |
| 4 | Loss on Drying | Not more than 1.0 % w/w | 0.53 | Gravimetry |
| 5 | Residue on Ignition | Not more than 0.5 % w/w | 0.090 | Gravimetry |
| 6 | Heavy Metals (as Pb) | Not more than 20 ppm | Less than 10 ppm | ICP-OES |
This document sets out the standard specification for Ammonium Paratungstate, 99.9+% and applies to all consignments of this grade. It is not a lot-specific release document; a lot-specific certificate carrying the analysis of the material actually shipped is issued with each consignment. Scapex Exports supplies against customer-specified assay limits and pharmacopoeial standards — send your specification sheet and we will confirm compliance before order.
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