Ingredient
|
A grade
|
B grade
|
MgF2
|
99% min.
|
99.9% min.
|
Na
|
0.01% max.
|
0.01% max.
|
SiO2
|
0.1% max.
|
0.1% max.
|
SO4
|
0.02% max.
|
0.01% max.
|
Ca
|
0.1% max.
|
0.1% max.
|
Moisture
|
0.1% max.
|
0.1% max.
|