| M Formula: | Cl2O7 |
| Properties: | |
| Colorless, viscous liquid. Fp −91C; bp 82C; d 1.86. Hydrolyzes to form perchloric acid. | |
| Hazard: | |
| Explodes on contact with iodine or flame or by shock. Strong irritant to tissue and very toxic. | |
| Use: | |
| Cellulose esterification catalyst. | |