Other grades of this product :
| VAT BLACK 27 Basic information |
| Product Name: | VAT BLACK 27 | | Synonyms: | N,N'-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho[2,3-a:2',3'-i]carbazole-6,9-diyl)bis(benzamide);Vat Olive Green R;Benzamide, N,N-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho2,3-a:2,3-icarbazole-6,9-diyl)bis-;C.I.VATBLACK27;Vat black 27 (C.I. 69005);Anthramar Olive R;Cibanone Olive 2R;Dycosthren Olive R | | CAS: | 2379-81-9 | | MF: | C42H23N3O6 | | MW: | 665.65 | | EINECS: | 219-169-9 | | Product Categories: | Organics | | Mol File: | 2379-81-9.mol |
| VAT BLACK 27 Chemical Properties |
| Boiling point | 685.54°C (rough estimate) | | density | 1.537 | | refractive index | 1.7800 (estimate) | | pka | 11.19±0.20(Predicted) | | EPA Substance Registry System | Benzamide, N,N'-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho[2,3-a:2',3'-i]carbazole-6,9-diyl)bis- (2379-81-9) |
| VAT BLACK 27 Usage And Synthesis |
| Preparation | (a) N-(4-chloro-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide?and N-(4-amino-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide in the presence of copper condensation, then use Chlorosulfonic acid cyclization, (b) N-[4-(4-benzoylimino-9,10-dioxo-anthracen-1-ylidene)amino-9,10-dihydroxy-anthracen-1-yl]benzamide?in sulfuric acid central change, then the product oxidation. | | Properties and Applications | brown light grey. Black powder. Soluble in 2 – Chlorophenol, slightly soluble in Chloroform and Pyridine , not soluble in Acetone, Etanol, Toluene and Xylene. In concentrated sulfuric acid for red, dilution after flocculent olive green precipitation. Alkaline reduction leuco for red brown; Acid reduction leuco for yellow brown. Mainly used in cotton fiber dyeing, suitable for suspension pad dyeing, also used for cotton yarn of the jig dyeing cotton and the impregnation, rarely used for printing. Can with other VAT dye spell dyed noise. Dyeing silk, affinity and levelness were good, also used for Fiber/cotton blended fabric dyeing.
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Standard
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Ironing Fastness
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Chlorine bleach
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Light Fastness
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Mercerized
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Oxygen bleach
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Soaping
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Fading
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Stain
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ISO
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3
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4-5
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7
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4-5
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4-5
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4-5
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4-5
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AATCC
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3
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4-5
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7
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4
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4-5
|
|
| VAT BLACK 27 Preparation Products And Raw materials |
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