Product Introduction:
high quality blue silica gel is provided by Rushan Huanyu Chemical Co., Ltd.,a major Chemical Reagent supplier in Chemicals Material wholesale industry in China.You can check out the specification of high quality blue silica gel below or get any optional result clicking into the following keywords blue silica gel , high quality blue silica gel , 2-4mm , Description , Features and you can check the authentications and testimonials of high quality blue silica gel .
Description:
[character]
blue silica gel is separated from blue gel indicatoroff colour silica gel and blue gel, the apperance is blue or light blue vitreous granule, can be separate from sphericity and nubby according to the shape of granule, it can turn into red from blue after adsorb humidity.
[action]
1it is mainly used in instrumentmeterequipment, can adsorb humidity and prevent tarnishing in the airtight condition, it can turn into red from blue after adsorb humidity to indicate the environment's relative humidity intuitionstic. 2commix with the normal silica gel desiccants, indicate the desiccants' moisture adsorption degree and judge the environment's relative humidity . as the silica gel desiccant used in packing, it is broadly used in precious instruments, leather, shoes, dress,food, medicine and household electrical appliance and so on. [technical index]
item
blue gel indicator
off colour silica gel
blue gel
typical numerical value
adsorption quantity％
PH=20％≥
8.0
--
--
8.5
PH=35％≥
13.0
--
--
13.6
PH=50％≥
20.0
20.0
18.0
22.5
PH=90％≥
--
--
28.0
31.4
attrition rate,％≤
10.0
10.0
10.0
0.5
granularity pass rate ％≥
96
90
90
97
reduced quantity when heated％≤
5.0
5.0
5.0
0.9
colour change
PH=20％≥
blue or light blue
--
--
eligible
PH=35％≥
purple or amaranth
--
--
eligible
PH=50％≥
light red
light red
light purple or light red
eligible
[spec] 1-3mm2-5mm4-8mm
[packing] 25kg compound bag or170kg bucket .
[remark] packing and spec can be made according to users' demands.
