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
Benzene Disulfonic Acid
Formulated product · C6H6O6S2 · ≥90% Technical Solution
Structural formula1. Product identity
| Product name | Benzene Disulfonic Acid |
|---|---|
| C.A.S. number | Applicable to blend — on request |
| Molecular formula | C6H6O6S2 |
| Molecular weight | 238.24 g/mol |
| Grade / standard | ≥90% Technical Solution |
| Description | Colorless to pale yellow liquid |
| Product group | Sulfonic Acid Intermediates |
| Category | Dyes & Dye Intermediates |
| 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 | Colorless to pale yellow liquid | Complies | Visual |
| 2 | Assay | Not less than 90.0 % w/w | 90.67 | Spectrophotometry |
| 3 | Shade | Matching approved standard | Matches standard | Visual / Spectrophotometric |
| 4 | Strength vs. Standard | 100 ± 3 % | 99.7 % | Spectrophotometry |
| 5 | Moisture | Not more than 5.0 % w/w | 1.26 | Gravimetry |
| 6 | Matter Insoluble in Water | Not more than 1.0 % w/w | 0.261 | Gravimetry |
| 7 | Solubility in Water at 60 °C | Not less than 80 g/L | 93 g/L | In-house method |
| 8 | Light Fastness (ISO 105-B02) | Grade 5 – 6 minimum | Grade 5 | ISO 105-B02 |
| 9 | Wash Fastness (ISO 105-C06) | Grade 4 – 5 minimum | Grade 5 | ISO 105-C06 |
3. Declaration
This document sets out the standard specification for Benzene Disulfonic Acid 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