Información del producto
- Benzo Cuprol Black RLW
- Benzoic acid, 2-(2-(2-amino-6-(2-(4'-(2-(3-carboxy-4-hydroxyphenyl)diazenyl)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)diazenyl)-5-hydroxy-7-sulfo-1-naphthalenyl)diazenyl)-5-nitro-, sodium salt (1:3)
- Benzoic acid, 2-[[2-amino-6-[[4′-[(3-carboxy-4-hydroxyphenyl)azo]-3,3′-dimethoxy[1,1′-biphenyl]-4-yl]azo]-5-hydroxy-7-sulfo-1-naphthalenyl]azo]-5-nitro-, trisodium salt
- Cuprophenyl Black RL
- Trisodium 2-[[2-Amino-6-[4-[4-(3-Carboxylato-4-Hydroxy-Phenyl)Azo-3-Methoxy-Phenyl]-2-Methoxy-Phenyl]Azo-5-Hydroxy-7-Sulfonato-1-Naphthyl]Azo]-5-Nitro-Benzoate
- trisodium 2-{(E)-[(6E)-2-amino-6-(2-{4'-[(2Z)-2-(3-carboxylato-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]-3,3'-dimethoxybiphenyl-4-yl}hydrazinylidene)-5-oxo-7-sulfonato-5,6-dihydronaphthalen-1-yl]diazenyl}-5-nitrobenzoate
- C.I. Direct Black 21, trisodium salt
- C.I. Direct Black 91
- C.I. 30400
- C.I. Direct Black 91
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- C.I. Direct Black 91, trisodium salt
Direct black 91 is a diazo dye that is used as a pigment in inks, paints and plastics. The congener has an electronic spectrum with the following features:
N-N=C-C=N
The alkali metal atom (Na, K) is situated at the centre of the molecule. There are two integer values for the number of carbon atoms (2). The organic solvent is a polar solvent, such as alcohols or ethers. The chromophore is a salicylic acid group. The particle size is greater than 10 micrometres. The substance has a low viscosity and light resistance. It also exhibits surfactant properties and can be mixed with other substances to create dispersions or emulsions.