Turning from original color to another after absorbing moistures.
Characteristics
Shape: glass-like pellets or lumps.
Color: blue or light blue.
Including blue gel indicator, chromotropic silica gel and blue silica gel.
Turning from blue to red after absorbing moistures.
Use
1.Mainly used for absorbing moisture, anti-rusting of instruments, gauges and equipment in the enclosed conditions. After absorbing moisture, it turns from blue to red, visually indicating the relative humidity of the given environments.
2. When being used with ordinary silica gel or drier, it indicates to which extent the drier absorbs the moisture and judges the relative humidity of a given environment. It is widely used as silica gel drier for the packing of precision instruments, leathers, shoes, clothes, foodstuffs, medicines and household
electric appliances, etc.
Technical Data
ITEM | Blue gel indicator | Discoloring silica gel | Blue silica gel | Typical values | |
Adsorption capacity, % | RH=20 % ≥ | 8.0 | ---- | ---- | 8.5 |
RH=35 % ≥ | 13.0 | ---- | ---- | 13.6 | |
RH=50 % ≥ | 20.0 | 20.0 | 18.0 | 22.5 | |
RH=90 % ≥ | ---- | ---- | 28.0 | 31.4 | |
Rattler loss, % ≤ | 10.0 | 10.0 | 10.0 | 0.5 | |
Qualified size ratio, % ≥ | 96 | 90 | 90 | 97 | |
Loss on heating, % ≤ | 5.0 | 5.0 | 5.0 | 0.9 | |
Color | RH=20 % | Blue or light blue | ---- | ---- |
|
RH=35 % | Purple or purplish red | ---- | ---- |
| |
RH=90 % | Light red | Light red light | Purple or light red |
| |
Size: 13mm25mm 48mm.
packing: 25kg per compound bag or 170kg per drum.
Note: Packing and size may be customized per your specific requirements.
