| ≥1 piece |
Fe 3 O 4
Physical and Chemical properties:
|
TEST ITEMS |
SPECIFICATION |
|
APPEARANCE |
BLACK POWDER |
|
CONTENT OF Fe 3 O 4 |
90% min |
|
pH VALUE |
5-8 |
|
DENSITY |
4.5 g/ml |
|
SHADE |
CLOSE TO STANDARD |
|
oil ABSORPTION |
10-20% |
|
RESIDUE ON 320 MESH |
0.3% max |
|
WATER SOLUBLE |
0.3% max |
|
VOLATITE 105 °C |
1.0% max |
|
TINTING STRENGTH |
98-102 % |
Packing: 25kg black paper bags with pallets