Orange Silica Gel
Orange silica gel has a strong capacity of absorption moisture. During the process of absorption moisture, the appearance of the color changes obviously according to the hygroscopic capacity. So it’s often called "humidity indicator."
Its main component is silicon dioxide and its color varies with the humidity. With the exception of blue silica gel’s performance, it also has characters of cobalt chloride free, non-toxic, odorless, harmless, etc.
Its molecular formula is: SiO2 + H2O + C25H30CLN3
ITEM | ORANGE SILICA GEL |
Bulk Density(g/ml) | 0.75 |
Specific Surface Area(m2/g) | 700 |
Average Pore Diameter( nm) | 2.4 |
Pore Volume(ml/g) | 0.32-0.39 |
Specific Heat(KJ/kg.°C) | 0.92 |
Thermal Conductivity (KJ/m.Hr.°C) | 0.63 |
Regeneration Temperature(°C) | 100~120 |
ITEM | SPECIFICATION | Typical Value | ||||
Superior Class | First Class | Qualified Class | ||||
Adsorption | RH=20%,% ≥ | 12 | 10 | 8 | 9 | |
RH=35%,% ≥ | 20 | 18 | 15 | 17 | ||
RH=50%,% ≥ | 27 | 24 | 20 | 25 | ||
RH=90%,% ≥ | 40 | 36 | 30 | 35 | ||
Rattler Loss,%≤ | 10 | 10 | 10 | 10 | ||
PH Value | 2-4 | 2-4 | 2-4 | 4.0 | ||
Specific Resistance ,Ω.cm ≥ | 5000 | 3500 | 3000 | 3500 | ||
Silica ,% ≥ | 98.2 | 98 | 98 | 98 | ||
Qualified Ratio of Spherical Granules ,% ≥ | 95 | 90 | 80 | 85 | ||
Ratio of Size Qualified ,% ≥ | 100 | 99.5 | 90 | 97 | ||
Moisture Content,% ≥ | 1.5 | 2.0 | 5.0 | 5.0 | ||
Bulk Density, g/ml | 0.78 | 0.75 | 0.70 | 0.76 | ||
Color | RH 20% ≥ | Light Yellow | ||||
RH 35% ≥ | Light Green | |||||
RH 50% ≥ | Light Dark Green | |||||
Original Color | Orange | |||||
Notes: The value of qualified ratio of spherical granules is just applicable to the qualified ratio of silica gel spherical granule. | ||||||