【Feature】
Blue silica gel includes blue indicating silica gel、color-changing silica gel and blue
silica gel. Blue silica gel has the appearance of the blue or
light blue glass-like particles, according to the shape of particles It can be divided into spherical ones and block ones. Meanwhile, It has a property of turning pink from blue after
absorption.
Cobalt-free color-changing silica gel (orange silicone) also has the performance of
changing its own color after absorbing moisture, but compared with silicone, because it does not contain cobalt chloride (in 1998 the EU identified cobalt chloride as Class II carcinogen), it is
more suitable for customer's use.
【Use】
1. Mainly used for moisture absorption and rust proofing when instruments and equipment are placed in obturation conditions, at the same time, according to their own color turning red from blue
after the moisture absorption it can indicates ambient humidity directly.
2. It being used with ordinary silica gel desiccant, we can get the desiccant moisture level and judge the relative ambient humidity.
3. Desiccant silica gel used for packaging, it is widely used in precise instruments, leather, shoes, clothing, food, medicine and household appliances, etc.
ITEM | Blue gel indicator | Discoloring silica gel | Blue silica gel | Typical values | |
RH=20% | 8.0min | ---- | ---- | 8min | |
Adsorption | RH=35% | 13.0min | ---- | ---- | 13min |
capacity % | RH=50% | 20.0min | 20.0min | 18.0min | 22min |
RH=90% | ---- | ---- | 28.0min | 32min | |
Rattler loss% | 10.0max | 10.0max | 10.0max | 1max | |
Qualified size ratio % | 96min | 90min | 90min | 95min | |
Loss on heating % | 5.0max | 5.0max | 5.0max | 2max | |
color | RH=20% | Blue or light blue | --- | --- | eligibility |
RH=35% | purple or purplish red | --- | --- | eligibility | |
RH=90% | light red | Light red light | purple or light red | eligibility |
【Size】1-3mm、2-4mm、2-5mm、4-8mm.
【Packing】25KG per compound bag.
【Note】Packing and size can be adjusted according to customer’s different requirements.