Hujiang brand calcined kaolin is made by advanced equipment of America and Britain,it is high whiteness,fine particle size,good dispersibility, mobility, surface smoothness,gloss,ink absorbent,black absorbent.It is used in paper coaing.
1、Main standard
|
Chemical composition |
Kaolin/ Calcined |
|
Appearance |
White Powder |
|
Package |
25kg weaven bag/kraft paper,1000kg big bag |
|
Characteristics |
It is made by advanced equipment of America and Britain,it is high whiteness,fine particle size,good dispersibility, mobility, surface smoothness,gloss,ink absorbent,black absorbent. |
|
Application |
Paper coationg. |
2、Specification
|
No |
Item |
Unit |
Index |
|
LJ-1 |
LJ-2 |
|
1 |
Whiteness |
％ |
≥90 |
≥90±2 |
|
2 |
Residue on Sieve 325 mesh % |
％ |
＜0.004 |
≤0.005 |
|
3 |
Refractive index |
％ |
1.62 |
1.62 |
|
4 |
Moisture |
％ |
＜0.5 |
＜0.5 |
|
5 |
PH Value of aqueou suspension |
|
6.5-7.2 |
6.5～7.2 |
|
6 |
Oil absorption |
％g/100g |
60±5 |
60±5 |
|
7 |
＜2um assay |
％ |
≥90±2 |
≥78 |
Chemical index
|
SiO2(%) |
Al2O3(%) |
Fe2O3(%) |
TiO2(%) |
CaO(%) |
MgO(%) |
K2O(%) |
Na2O(%) |
L.O.L(%) |
|
50±2 |
45±2 |
＜0.5 |
＜1.1 |
＜0.3 |
＜0.2 |
＜0.06 |
＜0.2 |
0.5 |
|
Barium sulfate