China Acid Black 2 Nigrosine Black 2, Find details about China Nigrosine Black, Nigrosine Black 2 from Acid Black 2 Nigrosine Black 2
ITEM | STANDAED | RESULT |
Appearance | Black crystal | Black |
Moisture | 6% max | 4.50% |
Ash Content | 17% max | 15.10% |
Strength | 100% | 108% |