Name | Solvent Black 34 |
Synonyms | Black BR Black 3804 Acid Black 63 EINECS 251-079-5 Solvent Black 34 C.I.Acid Blak 123 Transparent Black BG C.I. SOLVENT BLACK 34 LEATHERSPRAYINGBLACKRL Solvent black 34 (C.I. 12195) Chromate(1-), bis(1-(2-(hydroxy-kappaO)-4-nitrophenyl)diazenyl-2- Hydrogen bis[1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphtholato]chromate Hydrogen bis(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphtholato(2-))chromate(1-) (OC-6-22')- Chromate(1-), bis(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphthalenolato(2-))-, hydrogen, (OC-6-22')- Chromate(1-), bis[1-[(2-hydroxy-4-nitrophenyl) azo]-2-naphthalenolato(2-)]-, hydrogen, (OC-6-22')- Chromate(1-), bis1-2-(hydroxy-.kappa.O)-4-nitrophenylazo-.kappa.N1-2-naphthalenolato(2-)-.kappa.O-, hydrogen, (OC-6-22)- Chromate(1-), bis(1-((2-(hydroxy-kappaO)-4-nitrophenyl)azo-kappaN1)-2-naphthalenolato(2-)-kappaO)-, hydrogen, (OC-6-22')- |
CAS | 32517-36-5 12218-99-4 12238-55-0 12269-80-6 12768-76-2 47865-34-9 63815-15-6 6459-65-0 90740-30-0 |
EINECS | 251-079-5 |
InChI | InChI=1/C16H11N3O4.Cr/c20-14-8-5-10-3-1-2-4-12(10)16(14)18-17-13-7-6-11(19(22)23)9-15(13)21;/h1-9,20-21H;/q;+3 |
Molecular Formula | C32H19CrN6O8 |
Molar Mass | 667.53 |
Storage Condition | RT, dry, sealed |
Physical and Chemical Properties | Dark yellow powder. Slightly soluble in water, soluble in ethylene glycol ether, DMF, ethanol and other organic solvents, the solution is yellow-brown. |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) | |
introduction | solvent black 34 is a dark green powder, mainly used for coloring grease, water, soap, candles, rubber toys and plastic products. It has been reported that it can be used to prepare a graphene oxide modified polyurethane dye and a high-resolution printing ink. | |
application example | CN201010207172.8 reports a high-resolution printing ink with the following components and weight percentage contents: polyacrylate 6-12%, chlorine vinegar resin 2-6%, polyurethane 1-3%, dye 2-5%, polymer stabilizer 2-6%, conductive agent 0.1-0.5%, auxiliary agent 0.2-0.5%, solvent 75 ~ 86%. The dye is one or more of solvent black 24, solvent black 25, solvent black 27, solvent black 34, and chromium complex dye 957. | |
use | leather spray black RL is mainly used for spraying and curtain coating of natural leather such as pigskin, cowhide and sheepskin, especially for spraying and coloring aniline leather. | |
production method | using 2-amino -4 (and 5)-nitrophenol and 2-naphthol as raw materials, first 2-amino -4 (and 5)-nitrophenol is diazotized, then coupled with 2-naphthol, then added with chromium alum for complexation, filtered, dried, and crushed to obtain dry powder raw dye. The dry powder dye is dissolved in the mixed solvent of ethylene glycol ether and ethanol, and the solution dye can be packaged by sedimentation and filtration.. |