Scapex Exports Pvt. Ltd.
830, 8th Floor, Sun Gravitas, Times of India Road,
Shyamal, Ahmedabad 380015, Gujarat, India
+91 9925522674 · info@scapexexports.com
CIN U46909GJ2025PTC164345
Shyamal, Ahmedabad 380015, Gujarat, India
+91 9925522674 · info@scapexexports.com
CIN U46909GJ2025PTC164345
Certificate of AnalysisStandard product specification
Sodium Metasilicate Pentahydrate, >=95.&
CAS 10213-79-3 · ≥97% Technical
1. Product identity
| Product name | Sodium Metasilicate Pentahydrate, >=95.& |
|---|---|
| C.A.S. number | 10213-79-3 |
| Grade / standard | ≥97% Technical |
| Description | White crystalline beads |
| Product group | Specialty Additives |
| Category | Water Treatment Chemicals |
| Country of origin | India |
| Packing | Bags, drums, carboys, IBC or ISO tank as applicable — customer-specified packing available |
| Storage | Cool, dry, well-ventilated place in tightly closed original packing |
2. Analytical specification
| S. No. | Test parameter | Specification | Typical result | Method |
|---|---|---|---|---|
| 1 | Description | White crystalline beads | 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 97.0 % w/w | 97.44 | Titrimetry / Instrumental |
| 5 | pH (1 % aqueous solution) | As per specification | 9.3 | Potentiometry |
| 6 | Matter Insoluble in Water | Not more than 0.5 % w/w | 0.051 | Gravimetry |
| 7 | Iron (as Fe) | Not more than 50 ppm | 10.0 ppm | ICP-OES |
| 8 | Heavy Metals (as Pb) | Not more than 10 ppm | Less than 5 ppm | ICP-OES |
| 9 | NSF/ANSI 60 suitability | Suitable for potable water treatment | Complies | Manufacturer declaration |
| 10 | Moisture | Not more than 1.0 % w/w | 0.47 | Karl Fischer / Gravimetry |
3. Declaration
This document sets out the standard specification for Sodium Metasilicate Pentahydrate, >=95.& and applies to all consignments of this product and grade supplied by Scapex Exports Pvt. Ltd. It is not a lot-specific release document; a lot-specific certificate carrying the analysis of the material actually shipped is issued with, and travels with, each consignment. Scapex Exports supplies against customer-specified assay limits and pharmacopoeial standards — send your specification sheet and we confirm compliance in writing before the order is accepted.
SCAPEXQUALITY ASSURED