Place of Origin : Shiheung,South Korea

Direct black 22, Direct Fast Black VSF
1. Other Names:
Direct black 22, Direct Fast Black VSF 600%, Direct light black GF, Direct fast black GF, C.I. Direct black 22,

2. specification
Name of Item Item of Provision
Appearance Black Symmetrical Powder
Shade compare with standard Similar~Slight
Strength is standard % 600
Moisture % <=5
Insolubles % <=1
Fineness 180 m residue on sieve % <=15
Solubility g L 5
PH value =>9