5-Sodiosulfoisophthalic Acid

Product Description
Product | 5-Sodiosulfoisophthalic Acid |
CAS | 6362-79-4 |
Formula | C8H5NaO7S |
Synonym | SSIPA, 1,3-Benzenedicarboxylic acid, 5-sulfo-, sodium salt (1:1) |
Typical Product Specifications
Odor | Essentially odorless |
Assay | 98.0% min |
Melting Point | 373 to 375 C |
pH | 2.0 (10% aqueous solution) |
Water | 1.5% |
Neutralization Value | 132.5 to 136.5 |
Acidity | 0.20% as H2SO4 |
Iron | 4.0 ppm max |
Water Insolubles | 0.015% max |
Sodium Chloride | 0.01% max |
Color | 15 APHA max (5% in water) |
Appearence | free flowing crystalline solid |
Water solubility | 380 g/100g at 24C |
Color | white to off-white |
Absorptivity | 0.4 mL/g cm at 456 nm |
Sodium Sulfate Content | 0.30% max |
Chemical Structure | ![]() |
Notes | Used as a monomer for waterborne polyesters and nylon fibers, in adhesion aid for magnetic tapes, and amine free polyurethane dispersions. |
Class | Plastic Additives |
Industry | Textiles, Plastics, Synthetic Fabrics |

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