Industrial silica gel
Blue Silica Gel
| ITEM | Blue gel indicator | Discoloring silica gel | Blue silica gel | Typical values | |
| Adsorption capacity, % | RH=20% ≥ | 8.0 | —— | —— | 8.5 |
| RH=35% ≥ | 13.0 | —— | —— | 13.6 | |
| RH=50% ≥ | 20.0 | 20.0 | 18.0 | 22.5 | |
| RH=90% ≥ | —— | —— | 28.0 | 31.4 | |
| Rattler loss, % ≤ | 10.0 | 10.0 | 10.0 | 0.5 | |
| Qualified size ratio, % ≥ | 96 | 90 | 90 | 97 | |
| Loss on heating, % ≤ | 5.0 | 5.0 | 5.0 | 0.9 | |
| Colour | RH=20% | Blue or light blue | —— | —— | |
| RH=35% | Purple or purplish red | —— | —— | ||
| RH=90% | Light red | Light red light | Purple or light red | ||