Activated Alumina
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Silica Gel
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Orange Silica Gel
Orange Silica Gel
中文名：橙色硅胶
Molecular formula: SiO2 + H2O + C25H30CLN3
Size: 1-3mm, 2-4mm, 2-5mm, 3-5mm, 4-8mm
Technical specifications
|
Item |
Unit |
Index |
||
|
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.℃ |
0.92 |
||
|
Thermal Conductivity |
KJ/m.Hr.℃ |
0.63 |
||
|
Regeneration Temperature |
℃ |
100~120 |
||
|
Adsorption Capacity |
RH=20% |
% |
≥9 |
|
|
RH=35% |
% |
≥17 |
||
|
RH=50% |
% |
≥25 |
||
|
RH=90% |
% |
≥35 |
||
|
Rattler Loss |
% |
≤10 |
||
|
PH Value |
4 |
|||
|
Specific Resistance |
Ω.cm |
≥3500 |
||
|
Silica content |
% |
≥98 |
||
|
Qualified Ratio of Spherical Granules |
% |
≥85 |
||
|
Ratio of Size Qualified |
% |
≥97 |
||
|
Moisture Content |
% |
≥5 |
||
|
Bulk Density |
g/ml |
0.76 |
||
|
Color |
RH ≥20% |
Light Yellow |
||
|
RH ≥35% |
Light Green |
|||
|
RH ≥50% |
Light Dark Green |
|||
|
Original Color |
Orange |
|||
Packing: 25kg/bag, 500kg/bag
Storage
Temperature 5 to 25 degrees, humidity≤70%, can't light or radiation, airtight save, do not contact with air directly.
Orange silica gel can be regenerated, it will be returned to the original color after heating-dehydration
Application
Orange silica gel mainly used as a desiccant, humidity indicator, indicating dry degree and environmental humidity. Widely used in household appliances, food, clothing, leather, petrochemical industry, pharmaceutical, aerospace, military industry, instrument industry, etc.
Related information
Allochroic silica gel is divided into 3 types: blue silica gel, cobalt-free blue silica gel, orange silica gel.
Blue silica gel (blue to red) contains cobalt chloride, cobalt chloride color from blue to pink after absorbing water.
Cobalt-free blue silica gel (yellow to red) contains congo red, congo red itself can be used as an acid-base indicator, colour change interval PH3.5 ~ 5.2, alkali state to red, acid state to violet.
Orange silica gel (yellow to green) contains methyl violet, methyl violet color from yellow to green between PH0.13-0.5.