| Identification | Back Directory | [Name]
tetrasodium [mu-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-) | [CAS]
28407-37-6 | [Synonyms]
C.I. Direct Blue 218
Direct blue 218 (C.I. 24401)
C.I.Direct Blue 218:C.I.24401
Direct Blue 218 (Technical Grade)
[3,3'-[(3,3'-Dihydroxy-1,1'-biphenyl-4,4'-diyl)bis(azo)bis(5-amino-2,7-naphthalenedisulfonato-(O4,O3)]]dicopper, tetrasodium salt
Cuprate, [μ-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonato]]]]di-, tetrasodium
Tetrasodium [μ-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis [5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate
tetrasodium [mu-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-)
Cuprate(4-) [μ-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonato]](8-)]]di-, tetrasodium
Cuprate(4-), .mu.-3,3-3,3-di(hydroxy-.kappa.O)1,1-biphenyl-4,4-diylbis(azo-.kappa.N1)bis5-amino-4-(hydroxy-.kappa.O)-2,7-naphthalenedisulfonato(8-)di-, tetrasodium
Cuprate(4-), [.mu.-[[3,3'-[[3,3'-di(hydroxy-. kappa.O)[1,1'-biphenyl]-4,4'-d iyl]bis(2,1-diazenediyl-. kappa.N1)]bis[5-amino-4-(hydroxy-. kappa.O)-2,7-naphthalenedisulfonato]](8- )]]di-, sodium (1:4) | [EINECS(EC#)]
249-008-8 | [Molecular Formula]
C32H20Cu2N6Na4O16S4 | [MDL Number]
MFCD01734151 | [MOL File]
28407-37-6.mol | [Molecular Weight]
1091.84 |
| Chemical Properties | Back Directory | [Boiling point ]
1560℃[at 101 325 Pa] | [density ]
2.8[at 20℃] | [vapor pressure ]
0Pa at 25℃ | [solubility ]
DMSO (Sparingly), Methanol (Slightly), Water (Sparingly) | [form ]
Solid | [color ]
Very Dark Blue to Black | [Water Solubility ]
10g/L at 17℃ | [LogP]
-0.77 at 25℃ | [EPA Substance Registry System]
C.I. Direct Blue 218 (28407-37-6) |
| Hazard Information | Back Directory | [Uses]
Direct Blue 218 is an azo dye used in diagnostic imaging. Used in the prediction of rat carcinogenisis. Also used in textile dyes contributing to textile effluents and wastewaters.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list. | [Preparation]
3,3′-Dimethoxylbenzidine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid(2 Moore) coupling, and then will product into copper complex. | [General Description]
Deep purple to dark blue amorphous powder. | [Air & Water Reactions]
Water soluble. Azo dyes can be explosive when suspended in air at specific concentrations. | [Reactivity Profile]
tetrasodium [mu-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-) is a diazo compound. Azo, diazo, azido compounds can detonate. The nitro groups would facilitate rapid decomposition. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. | [Fire Hazard]
Flash point data for tetrasodium [mu-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-) are not available, however, tetrasodium [mu-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-) is probably combustible. | [Flammability and Explosibility]
Notclassified | [Properties and Applications]
green light blue. Used for cellulose fiber dyeing and printing, also can be used for paper color.
|
Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
|
|
Fading
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Stain
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Fading
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Stain
|
|
AATCC
|
4
|
4
|
6
|
3
|
|
3
|
|
|
|
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