|
No. |
Item |
Standard Specification |
|
|
1 |
SiO2 ≥ |
99.9% |
99.999% |
|
2 |
Impurity Max each |
PCT |
PPM |
|
Ca/Mg/Na/Cu/Mn/Co/Pb/N/S 0.001 |
Cr/Mn/Co/Sn/Na/Ni/Cu/V 0.5 |
||
|
Fe/Ni/K 0.002 |
Al/Fe/Pb/Ti/Mg 1.0 |
||
|
3 |
Size |
7nm, 20nm |
-200~+500mesh |
|
4 |
Packing |
25kgs in woven bag or cardboard drum with plastic bag inside |
|
|
No. |
Item |
Standard Specification |
||
|
1 |
SiO2 ≥ |
99.9% |
99.999% |
|
|
2 |
Composition | Impurity
Max each |
PCT |
PPM |
|
Cr/Mn/Co/Sn/Na/Ni/Cu/V 0.5% |
Ca/Mg/Na/Cu/Mn/Co/Pb/N/S 0.001 |
|||
|
Al/Fe/Pb/Ti/Mg 1.0 |
Fe/Ni/K 0.002 |
|||
| LOI |
6.0 % (950 °C, 2h) |
— |
||
|
3 |
Size |
7nm, 20nm |
-200~+500mesh |
|
|
4 |
Packing |
25kgs in woven bag or cardboard drum with plastic bag inside |
||
