Certificate of Analysis and technical specification for Bentonite — CAS 1302-78-9. Applies to all consignments of this product and grade.
| Product Name | Bentonite |
|---|---|
| C.A.S. Number | 1302-78-9 |
| Product Category | Pigments & Minerals |
| Product Group | Minerals & Extenders |
| Grade / Standard | ≥90% Purity |
| Physical Form | Beige to grey powder |
| 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 | Beige to grey powder | 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 90.0 % w/w | 91.03 | Titrimetry / Instrumental |
| 5 | Shade | Matching approved standard | Matches standard | Visual / Spectrophotometric |
| 6 | Strength vs. Standard | 100 ± 3 % | 102.0 % | Spectrophotometry |
| 7 | Moisture | Not more than 5.0 % w/w | 1.44 | Gravimetry |
| 8 | Matter Insoluble in Water | Not more than 1.0 % w/w | 0.142 | Gravimetry |
| 9 | Oil Absorption | As per specification | 45 g/100 g | ISO 787-5 |
| 10 | Residue on 45 µm Sieve | Not more than 0.1 % | 0.041 | ISO 787-18 |
| 11 | pH (10 % aqueous suspension) | 6.0 – 9.0 | 7.5 | ISO 787-9 |
This document sets out the standard specification for Bentonite 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.
Send the specification you work to — we confirm the grade, packing, documentation set and CIF/FOB price within one business day.
