Certificate of Analysis and technical specification for Sulphate of Potash (SOP) — CAS 7778-80-5. Applies to all consignments of this product and grade.
| Product Name | Sulphate of Potash (SOP) |
|---|---|
| C.A.S. Number | 7778-80-5 |
| Product Category | Agrochemicals & Fertilizers |
| Product Group | Bulk Fertilizers |
| Grade / Standard | 50% K2O, ≤1.5% Cl |
| Physical Form | White crystalline granules |
| 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 | White crystalline granules | Complies | Visual |
| 2 | Identification | Conforms to the structure of the substance | Complies | FTIR / Chemical test |
| 3 | Solubility | As per specification | Complies | Visual / Monograph |
| 4 | Assay | Not less than 50.0 % w/w | 50.90 | Titrimetry / Instrumental |
| 5 | Moisture | Not more than 1.5 % w/w | 0.22 | Gravimetry |
| 6 | Water Solubility | Completely soluble | Complies | Visual / Gravimetry |
| 7 | Particle Size (1 – 4 mm) | Not less than 90 % | 96.8 | Sieve analysis |
| 8 | pH (5 % aqueous solution) | As per specification | 8.5 | Potentiometry |
| 9 | Heavy Metals (as Pb) | Not more than 20 ppm | Less than 10 ppm | ICP-OES |
This document sets out the standard specification for Sulphate of Potash (SOP) 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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