PRODUCT DATA SHEET (TDS)
1. Product Identification
| Item | Details |
| Product Name | 5-Sulfoisophthalic Acid Monosodium Salt (5-SSIPA) |
| CAS No. | 6362-79-4 |
| Molecular Formula | C₈H₅NaO₇S |
| Molecular Weight | 268.18 g/mol |
| Appearance | White Powder |
2. Typical Specifications
| Analysis Item | Unit | Standard | Typical Test Result |
| Appearance | – | White powder | Complies |
| Assay (Purity) | % | ≥ 99.0 | 99.0 |
| Moisture | % | ≤ 0.5 | 0.28 |
| Acidity | mg KOH/g | 418 ± 3 | 417 |
| Sulfate | mg/kg | ≤ 500 | 262 |
| Iron (Fe) | mg/kg | ≤ 5 | 3.8 |
| pH | – | 1.8 – 2.2 | 2.0 |
3. Physical & Chemical Properties
| Item | Details |
| Melting Point | > 300 ℃ |
| Solubility | Soluble in water and polar solvents; slightly soluble in organic solvents |
| pH (1% aqueous solution) | 1.8 – 2.2 |
| Physical State | Solid powder at room temperature |
| Odor | Odorless |
4. Applications
- Key intermediate for the production of cationic dyeable polyester (CDP) and modified polyamide fibers, improving dyeability and color fastness.
- Used in the synthesis of waterborne polyester resins and coatings to enhance adhesion and water resistance.
- Applied in the manufacturing of specialty polymers, high-performance coatings, and textile additives.
- Serves as a functional monomer in the production of ion-exchange resins and hydrophilic polymers.
5. Packaging & Storage
- Packaging: 25kg or 500kg bag
- Storage: Keep in a cool, dry, well-ventilated warehouse. Store away from moisture, heat sources, and incompatible materials.
- Shelf Life: 24 months under proper storage conditions.
6. Safety & Handling
- Use standard personal protective equipment (safety goggles, chemical-resistant gloves, and dust masks) when handling.
- Avoid inhalation of dust and direct contact with skin and eyes.
- In case of contact, rinse immediately with plenty of water and seek medical advice if irritation persists.
- Refer to the product SDS for detailed safety, handling, and disposal instructions.
