Silica gel specific type

ITEM

UNITS

Pores silica gel

Coarse-pored silica gel

Blue silica gel

Orange silica gel

Desiccant  silica gel

Adsorption

RH=20%

%

≥10

-

-

≥9.0

≥5.8

RH=40%

-

-

-

-

≥19.5

RH=50%

%

≥22

-

≥18.0

≥22.0

-

RH=80%

-

-

-

-

≥44

RH=90%

%

≥32

-

≥28.0

-

-

Heating reduction

%

4.0

≤7.0

≤5.0

≤2.0

-

Particle size limit

%

Agreement

≤5.0

-

-

-

Pore Volume

mL/g

-

≥0.76

-

-

≥0.45

Qualified rate of Spherical particles

%

-

≥60

≥90

≥90

-

ATTRITION

%

-

≤10.0

≤10.0

≤0.05

BULK DENSITY

g/L

Agreement

480-520

-

-

700

BET SURFACE

m²/g

-

-

-

-