Description:
Blue silica gel is a kind of color-changed silica gel. Which is divided into blue gel indicator, color-changing silica gel and blue gel. The appearance is blue or light blue glass-like particles. According to the shape of the particles, it can be divided into two types: spherical and massive. After moisture absorption, its color changes from blue to red.
Technical Parameter:
|
Properties |
Unit |
Data |
|
Color |
- |
Blue |
|
Shape |
- |
Glass-like pellets or lumps |
|
SiO2 content |
wt% |
≥98.5 |
|
Average pore diameter |
nm |
2.0-3.0 |
|
Size |
mm |
2~4, 3~5, 4~8, customized |
|
Item |
|
Blue gel indicator |
Discoloring silica gel |
Blue silica gel |
Typical values |
|
Qualified size ratio |
wt% |
≥96 |
≥90 |
≥90 |
≥97 |
|
Loss on heating |
wt% |
≤5 |
≤5 |
≤5 |
≤5 |
|
Adsorption capacity |
wt% |
RH=20% |
≥8
(Blue or light blue) |
/ |
/ |
≤8.5 |
|
|
wt% |
RH=35% |
≥13
(Purple or purplish red) |
/ |
/ |
≥13.6 |
|
|
wt% |
RH=50% |
≥20
(Light red) |
≥20
(Light red) |
≥18
(Purple or light red) |
≥22.5 |
|
|
wt% |
RH=90% |
/ |
/ |
≥28 |
≥31.4 |
|
Moisture content |
wt% |
≤3.0 |
Application:
●used for moisture absorption and rust prevention of instruments, meters, equipment, etc. under closed conditions, and at the same time, it can directly indicate the relative humidity of the environment by changing its color from blue to red after absorbing moisture
.
●As a silica gel desiccant for packaging, it is widely used in precision instruments, leather, shoes, clothing, food, medicine and household appliances.
Package:
25kg plastic bag
800kg super sack
150kg steel drum
Tracy Chen 
