Certificate of Analysis and technical specification for Potassium Thiosulfate — CAS 10294-66-3. Applies to all consignments of this product and grade.
| Product Name | Potassium Thiosulfate |
|---|---|
| C.A.S. Number | 10294-66-3 |
| Product Category | Inorganic Salts & Compounds |
| Product Group | Potassium Compounds |
| Grade / Standard | ≥98% Technical Solution |
| Physical Form | Clear colorless liquid |
| 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 | Clear colorless liquid | Complies | Visual |
| 2 | Identification | Conforms to the structure of the substance | Complies | FTIR / Chemical test |
| 3 | Assay | Not less than 98.0 % w/w | 98.82 | Titrimetry / Instrumental |
| 4 | Specific Gravity at 25 °C | As per specification | Conforms | Hydrometry / ASTM D4052 |
| 5 | Colour (APHA) | Not more than 30 | 12 | ASTM D1209 |
| 6 | Chloride (as Cl) | Not more than 0.01 % w/w | 0.0034 | Turbidimetry / IC |
| 7 | Sulphate (as SO4) | Not more than 0.02 % w/w | 0.0034 | Turbidimetry / IC |
| 8 | Iron (as Fe) | Not more than 20 ppm | 5.4 ppm | ICP-OES / AAS |
| 9 | Heavy Metals (as Pb) | Not more than 10 ppm | Less than 5 ppm | ICP-OES |
This document sets out the standard specification for Potassium Thiosulfate 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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