Sodium Dimethyl
Isophthalate-5-sulfonate, Other names include Sodium-5-Sulfoisophthalic
Acid Dimethyl Ester and Third Monomer. Abbreviation: SIPM.
Yield: 4000 tons (yearly), with products meeting DuPont's
quality standards. 
Formula: C10H907SNa
Molecular Weight: 296.23
Structure: 
Uses: The product is a white
powder , soluble in water and alcohol. As the most used dyeing
property modifier of polyesters, it is mainly used to improve
the dyeing properties of polyesters, but can also be used
as the intermediate in the synthesis of organic agents, large
molecules and find chemicals.
Specifications:
| Specification |
High Quality
|
First Grade
|
| Appearance |
white powder without
visible impurities |
| Acid Value (mgKOH/g) |
≤0.3 |
≤O.5 |
| Saponification Value (mgKOH/g) |
378 Ê¿ 2 |
378¡À3 |
| Sulfate ion (ppm) |
≤100 |
≤150 |
| Water ( wt% ) |
≤O.3 |
≤0.4 |
| Ferrum (ppm) |
≤4 |
≤5 |
| Absorbance (ABS) |
≤O.05 |
≤0.08 |
| Chloride ion (ppm) |
≤8 |
≤10 |
| Package: Complex package with inner
brown paper, 25 kg/ pack and 500 kg/ pack, or can be
packaged upon request. |
|
