| Identification | Back Directory | [Name]
Phenol, 2,4-dinitro-, sulfurized, leuco derivs. | [CAS]
66241-11-0 | [Synonyms]
Cassulfon Black SR
Immedial Black C-BR
Leuco Sulfur Black 1
Cassulfon Black C-BR
Diresul Black RDT 4D
Diresul Black RDT 2KS
Leuco Sulphur Black 1
Diresul Liquid Black RDT
C.I. Leuco Sulphur Black 1
Diresul Liquid Black RDT-LS
Diresul Liquid Black RL 200
Diresul Liquid Black RDT 2KS
Clariant Diresul Black PD Liquid
Leuco sulfur black 1 (C.I. 53185)
C.I.Leuco Sulphur Black 1:C.I.53185
Phenol, 2,4-dinitro-, sulfurized, leuco derivs. | [EINECS(EC#)]
266-273-5 |
| Hazard Information | Back Directory | [Preparation]
2,4-Dinitrophenol?or its Sodium salt (by?1-Chloro-2,4-dinitrobenzene?alkaline hydrolysis)??and Sodium polysulfide heating, in 110 ~ 120 ℃ reflux heating 48 to 72 hours, or in 130 ~ 140 ℃ under pressure to short time heating, then dilution melt, adding acid or air oxidation make dye completely precipitated out. In the molten material to the intermediate Sodium polysulfide proportion must be appropriate, such ability in reaction end solution almost no dye residual. | [Properties and Applications]
green black and blue black. Black uniform powder. Insoluble in water and Etanol. In the Sodium sulfide solution solubility is good, for green black; Add Sodium hydroxide and Sodium sulfide solution of colour and lustre is blue; Add hydrochloric acid Sodium sulfide solution to have green black precipitation; In the cold part of concentrated sulfuric acid solution, after heating for deep green light blue, further heating into dark blue; In 25% of fuming sulfuric acid for black blue, dilution after green black precipitation.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
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Moderate
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Severe
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ISO
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4-5
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4-5
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6-7
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4-5
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5
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5
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4-5
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AATCC
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5
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5
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6-7
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4
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4-5
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