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Blue Silica gel inspection standards and Ingredient Table

Blue Silica gel’ principle:

Blue rubber outward appearance for blue color translucent glassy, usually divides into the blue rubber, changes color the blue rubber, blue rubber indicator. Because in its ingredient includes one kind of color-developing agent, has not been affected with damp when the pallet assumes the blue color, after the colloidal particle is affected with damp, turns gradually light blue, will continue to be affected with damp will turn the pink, demonstrated that needs to replace the new silica gel or the regeneration use.

Use:

The blue silica gel may use for to absorb moisture the absorption of moisture alone, because has the color deterioration characteristic, it usual and ordinary silica gel drier coordination use, uses for to instruct the drying agent the moisture adsorption degree, by this determination environment relative humidity. The blue silica gel widely uses in the precision instrument, the leather, the clothing.food, the drugs and domestic electric appliances’ packing are moisture-proof.

The major targets or quotas and the specification are as follows:

First-level blue silica gel: 3-5MM

The outward appearance blue color or the dark blue. The luster does not have the white bean evenly, on-impurity.

Adsorptive capacity % RH=20% 9.0, light blue

RH=35% 14.0, purple red

RH=50% 23.0, pink

Grain-size distribution 4MM% 1.0

3-4MM%35.0-45.0

2-3MM%55.0-65.0

Below2MM% 0.4

Granularity qualified rate%98.6

Spheroidal particle qualified rate%95.0

Stack density, G/L770-810

Drying weightlessness’ (150 next 2 hours) requests according to the customer

Heterogeneous rubber %3.0

Texplode grain rubber% 4.0

 

 

Ingredient Chemistry Parameter

Chemical Composition Reference Table

Blue silica gel

SiO2(wt%)

99.7

Fe2O3(wt%)

0.008

AI2O3(wt%)

0.015

CaO(wt%)

0.005

Na2O(wt%)

0.03

CoCI2(wt%)

0.05

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