Chemical Properties
solid
General Description
Dark red powder.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. This organic acid has a moderate soluble in water. The resulting solutions contain concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid.
Reactivity Profile
ACID RED 114 is an azo compound. Toxic gases are formed by mixing compounds containing azo groups 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 ACID RED 114 are not available; however, ACID RED 114 is probably combustible.
Uses
Acid Red 114 is an azo dye used in diagnostics and textiles industry. It is also present in wastewater and textile effluents contributing to environmental hazards.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list.
Definition
ChEBI:CI Acid red 114 is an organic molecular entity.
Preparation
3,3′-Dimethylbenzidine double nitriding, respectively with phenol and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling, then use 4-Methylbenzene-1-sulfonyl chloride make phenol hydroxyl esterification.
Properties and Applications
red. Bright red powder. Soluble in water, 90 ° C water solubility of 60 g/L. Levelness medium, white the gender is good. In dyeing copper and iron ion colored light dimmed, should be pay attention to. Used for wool, silk and their blended fabric dyeing and printing directly, can also be used for leather color. This product is used to dye wool and roving scattered.
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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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
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5
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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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5
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Purification Methods
Salt out three times with sodium acetate, then repeatedly extract it with EtOH and dry the solid in air. [McGrew & Schneider J Am Chem Soc 72 2547 1950, Beilstein 16 II 140.] See Solochrome Violet R in “Aromatic compounds”, Chapter 4.
