12225-26-2 (活性黑8,C.I. Reactive Black 8 (9CI, ACI))

活性黑8;活性黑 K-BR;一硼化钴;C.I.活性黑8;C.I.REACTIVE BLACK 8 (参照);活性黑 8;

Reactive Black 8;REACTIVE BLACK K-BR;C.I. Reactive Black 8;Reactive Black 3HN;Reactive Black MN;kayacion black p-n liquid 40;ostazin black h-n;procion black h-n;C.I. 18207;Cobalt 5-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid complex;Kayacion Black P-N;Saplactive Black HN.;Active Black K;2,7-Naphthalenedisulfonic acid, 5-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-, chromium cobalt complex (9CI);Chromium, 5-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid complex (9CI);Cobalt, 5-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid complex (9CI);Basilen Black P-BR;Cibacron Black B-D;Drimarene Black P-BL;Helaktyn Black DN;Procion Black P-N;

活性黑 K-BR 可用于棉、黏胶纤维的染色，各项坚牢度均较好，通常仅用于染灰色或调色光。也可与活性艳橙 K-G、活性艳蓝拼咖啡色，与活性艳橙 K-R 拼灰色。还可用于丝绸和维棉混纺布的直接印花、涤棉混纺布的二浴法染色等。

以 2-羟基-5-硝基苯胺、H 酸、三聚氯氰和硫酸铬、硫酸钴为原料，首先将 2-羟基-5-硝基苯胺重氮化，与 H 酸偶合，然后将偶合产物在乙酸钠存在下依次与硫酸铬、硫酸钴反应，生成混合金属络合染料母体。随后将三聚氯氰与金属络合染料母体缩合，再用氨水进行第二次缩合得产物。经盐析、过滤、干燥得成品。。