1. The solubility of Catalyst S-24 in ethylene glycol (MEG) is more than 3% at 60°C.
2. The antimony content per kilogram of Catalyst S-24 is higher than that of all other antimony catalysts which can be dissolved in ethylene glycol.
3, Catalyst S-24 is low trace metal contents, high purity, used in PET production .
4, Catalyst S-24 can be well dissolved in ethylene glycol, its solution in vacuum can remain stable for a long time.
5, Catalyst S-24 has good solution stability due to its single structure.
6, Catalyst S-24 can quickly participate in the polymerization chain growth of monomers, so as to shorten the catalytic time, and make the reaction can be carried out at a lower temperature.
7, Minimize the loss of antimony in ethylene glycol recovery.
Packaging: Catalyst S-24 is packed in high density polyethylene (HDPE) drums weighing 25.0 kg net. Each 18 barrels are stacked on a card board and packed in a carton.
| Index | MIN | MAX |
| Sb, % | 56.5 | 58.5 |
| Loss on drying, % | --- | 0.6 |
| Insoluble substance in tartaric acid, % | --- | 0.014 |
| L* | 94.0 | --- |
| a* | -1.0 | 2.0 |
| b* | -1.5 | 2.5 |
| Fe，ppm | --- | 10 |
| As，ppm | --- | 15 |
| Pb，ppm | --- | 10 |
| （ | --- | 30 |
| （ | --- | 50 |
| Pass rate on 20 mesh sieve，% | 98 | --- |
），ppm 
），ppm