China High Quality Silica Gel Desiccant Roll, Find details about China Silica Gel, Silica Gel Desiccant from High Quality Silica Gel Desiccant Roll
ITEM | Specifications | Typical values | |||
Superior Class | First Class | Qualified Class | |||
25ºC Adsorption capacity, % | RH=20%, ≥ | 10.5 | 10.0 | 8.0 | 11.0 |
RH=50%, ≥ | 23.0 | 22.0 | 20.0 | 27.3 | |
RH=90%, ≥ | 34.0 | 32.0 | 30.0 | 36.6 | |
Loss on Heating, ≤ | 2.0 | 4.0 | 6.0 | 1.3 | |
pH value | 4-8 | - | - | 4.7 | |
Specific resistance, Ω·cm ≥ | 3000 | - | - | 6250 | |
Silica, % ≥ | 98 | - | - | 99.0 | |
Qualified ratio of spherical granules, % ≥ | 82 | - | - | 90 | |
Size | Negotiable | Negotiable | Negotiable | 2-5mm | |
Bulk density, g/L ≥ | Negotiable | Negotiable | Negotiable | 778 | |
Note: Qualified ratio of spherical granules is only applicable to fine-pored silica gel |