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Results of thermal decomposition of Zn 5-CQA and Na 5-CQA in air atmosphere. *-endo effect conerns only Zn complex.
| Complex | T1/°C | Tendo | Mass Loss/% | Anhydrous Form | T2/°C | Texo/Tendo * | Residue/% | Residue | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Found | Calculated | Found | Calculated | - | ||||||
| Zn(C16H17O9)2·3H2O | 30–145 | 83 | 6.83 | 6.53 | Zn(C16H17O9)2 | 235–510 | 269 * 413 446 460 | 9.42 | 9.84 | ZnO |
| Na(C16H17O9)·1.5H2O | 30–195 | 79 | 5.91 | 6.69 | Na(C16H17O9) | 195–745 | 304 379 424 656 713 723 | 13.35 | 13.14 | Na2CO3 |
