| Identification | Back Directory | [Name]
Vat Blue 42 | [CAS]
1327-81-7 | [Synonyms]
Blue GNX
C.I.53640
Vat Blue 42
Hydron Blue G
C.I. Vat Blue 42
Sulfur Vat Blue GNX
Vat blue 42 (C.I. 53640)
Dycosulfux Vat Blue GNX.
C.I.Vat Blue 42:C.I.53640
Vat Blue 42 ISO 9001：2015 REACH
Phenol, 4-[(9-ethyl-9H-carbazol-3-yl)amino]-, reaction products with sodium sulfide (Na2(Sx)) | [EINECS(EC#)]
215-500-6 |
| Hazard Information | Back Directory | [Chemical Properties]
Dark blue powder. Insoluble in water, poorly soluble in sodium sulfide solution. Yellow in alkaline reducing solution; dark greenish yellow in acidic reducing solution. Greenish blue in concentrated sulfuric acid; dilution produces a greenish blue precipitate. | [Preparation]
3-(4-Hydroxyanilino)-9-ethylcarbazole in Butanol sodium polysulfide solution heating, methods and C.I. Vat Blue 43 (C.I. 53630) similarity. This indophenol is by N – ethylcarbazole and 4-Nitrosophenol in concentrated sulfuric acid, in – 23 ℃ condensation and have to (BIOS 983,65-70) o note: use with C.I. leuco sulfur dye similar method, some the structure of the dyes can be converted into the leuco compound. | [Properties and Applications]
blue to red light blue. In concentrated sulfuric acid to green light blue, dilution after green blue precipitation; In the basic insurance powder solution or sodium hydroxide solution for yellow.
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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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4
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3
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5
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3
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3
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AATCC
|
5
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3
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5
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4
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4
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