Color-changing silica gel is classified as blue color-changing silica gel and orange color-changing silica gel, including spherical item and granular (lumpy) item, this product can change its own color with the increase of adsorption volume during the course of humidity adsorption, i.e. it can indicate the ambient humidity and also can determine whether or not to replace the desiccant according to the change of color, it can be used alone and also can be used in mixture with Type A silica gel. Its key technological specifications as follows:
Item |
specifications |
Blue silica gel indicator |
Color-changing blue silica gel |
Orange no-cobalt silica gel |
appearance |
Blue to light blue |
Blue to light blue |
Diagrammatic view or agreed color |
The qualified ratio of particle size % ≥ |
95 |
90 |
90 |
Adsorption capacity |
RH=20% ≥ |
8 |
--- |
--- |
RH=35% ≥ |
13 |
--- |
---- |
RH=50% ≥ |
20 |
20 |
20 |
Loss on heating % ≤ |
5 |
5 |
5 |
Color shown |
RH=20% ≥ |
Blue to light blue |
---- |
----- |
RH=35% ≥ |
Purple to amaranth |
----- |
----- |
RH=50% ≥ |
Amaranth or light amaranth |
Amaranth or light purple |
Diagrammatic view or agreed color |
Particle size mm |
1-3mm 2-5mm 4-8mm, etc. |
packing |
20kg/bag 15kg/bag, etc. |
Note：Made as per the agreement if any special request |
|
