|
ITEM
|
TOP GRADE
|
FIRST GRADE
|
|
Appearance
|
White or light yellow powder
|
|
|
Purity, % ≥
|
98
|
96
|
|
Melting point, ℃≥
|
170.0
|
166.0
|
|
Heating loss, % ≤
|
0.30
|
0.40
|
|
Ash content, % ≤
|
0.30
|
0.50
|
|
Residue(150μm), % ≤
|
0.00
|
0.10
|
Package: 25kg in kraft paper bag with PE bag inside. Or as customer’s request.
