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Product Description
The most important properties of activated clay are adsorption and decolorizing ability. Adsorption mainly means physical and chemical adsorption. Physical adsorption is attributed to Van Der Waal's forces. This force is commonly found both on the surface of the adsorbent and among molecules of adsorbate. As a result, the physical adsorption is non-selective but easy to reach equilibrium and has a better adsorption speed. Chemical adsorption is through chemical linkage with a significant selectivity. The decoloration for fats and oils is by adsorbing and removing the pigment, which is in the state of the colloidal particles dispersed in the oil or dissolved in oil.
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Specification
1.Physical/chemical characteristics (typical product data)
TEST ITEM
|
UNIT
|
STANDARD
|
INDEX
|
Color
|
-
|
White or gray or little yellow
|
accord
|
Appearance
|
-
|
Granular
|
Granular
|
Moisture
|
%
|
<3.0
|
0.5
|
Particle size
|
Mesh
|
30-60 Mesh 90% Min
|
95
|
16-30 Mesh 90% Min
|
92
|
40-120 Mesh 93% Min
|
95
|
Bulk density
|
g/ml
|
0.5-0.8
|
0.64
|
PH value
|
-
|
5.5-8.0
|
7.0
|
Loss on lgnition at 1000 ℃
|
wt%
|
5-10%
|
6.5
|
2.Heavy Metal Component (typical product data)
According to the standard method of “Determination of arsenic in food additives" issued by Standardization Administration of China and ICP Method
TEST ITEM
|
UNIT
|
INDEX
|
As
|
mg/kg
|
<3
|
Pb
|
mg/kg
|
<5
|
Cd
|
mg/kg
|
<0.75
|
Hg
|
mg/kg
|
<0.1
|
3. Chemical Component: (typical product data)
According to the standard method of “Chemical Analysis of refractory products by XRF" issued by Standardization Administration of China.
TEST ITEM
|
UNIT
|
INDEX
|
SiO2:
|
%
|
55.0 Min
|
Al2O3:
|
%
|
15Max
|
Fe2O3 :
|
%
|
8 Max
|
CaO:
|
%
|
3 Max
|
MgO:
|
%
|
14 Max
|
MnO:
|
%
|
1 Max
|