Item | Unit | Data |
Average pore diameter | nm | 2.0-3.0 |
Specific surface | M2/g | 650-800 |
Pore volume | Ml/g | 0.35-0.45 |
Specific heat | KJ/kg.°C | 0.92 |
Heat Conductivity | KJ/m.Hr.°C | 0.63 |
Item | Content | Item | Content |
SiO2 | 99.6% | Na2O | 0.17% |
Fe2O3 | 0.02% | MgO | 0.01% |
CaO | 0.04% | Al2O3 | 0.16% |
Item | Typical Data | |
Absorptive capacity | RH=20%, % ≥ | 11.2 |
RH=50%, % ≥ | 29.2 | |
RH=90%, % ≥ | 37.6 | |
Heat loss | % | ≤1.0 |
pH Value | ||
Specific resistance | Ω.cm | ≥5630 |
Silicon dioxide content | % | ≥ 98.5 |
Percent of pass of spherical particle | % | ≥90 |
Granularity | mm | 3-5 |
Bulk density | g/L | 784 |
Functional Characteristics:
1.silica gel has a strong adsorption capacity, silica gel itself is a neutral material, in addition to strong base, strong acid reaction under certain conditions, will not react with any other substances. At the same time, silica gel is also through the United States FDA certification, can be used directly with drugs, food drying agent.
2.silica gel desiccant can be used as a general packaging desiccant. Such as bags, clothing, shoes, hats, leather, etc., to prevent the goods in the process of storage or transportation due to dampness and affect the quality of products.
3.silica gel desiccant suitable hygroscopic environment for room temperature (20~32ºC), high temperature (60~90ºC), it can reduce the relative humidity of the environment to about 40%, so the application of desiccant is very wide.