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Mordant Blue 29

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Mordant Blue 29 Basic information
Mordant Blue 29 Chemical Properties
Safety Information
  • Hazard Codes Xi
  • Risk Statements 36/37/38
  • Safety Statements 26-36
  • WGK Germany 3
  • HS Code 29189900
MSDS
Mordant Blue 29 Usage And Synthesis
  • Chemical Propertiesdark brown powder
  • Preparation2,4-Dichloro-3-formylbenzenesulfonic acid?and 2-Hydroxy-3-methylbenzoic acid condensation, its product oxidation and changed into sodium salt.
  • Properties and Applicationsred light blue. Soluble in water for brown light yellow, slightly soluble in ethanol for red light brown. In concentrated sulfuric acid for hot magenta, after dilution to orange, and then generate a orange precipitation. Dye aqueous solution and sodium hydroxide as 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- blue.
    Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water
    Alkali Acid
    ISO 4 3 4 2 4-5 4 5
  • Purification MethodsThe crude phenolic triphenylmethanecarboxysulfonic acid triNa salt (40g) is dissolved in water (250mL) and filtered. Then conc HCl (50mL) is added to the filtrate, with stirring. The precipitate is filtered off, washed with HCl (2M) and dried. It is redissolved in water (250mL), and precipitation is repeated twice more in a water bath at 70o. It is dried under vacuum over solid KOH (first), then P2O5 [Martynov et al. Zh Analyt Khim 32 519 1977]. It has also been purified by paper chromatography using n-butanol, acetic acid and water (7:3:1). First and second spots were extracted. It chelates Al and Be. It is used also for estimating fluoride. [Beilstein 11 IV 707.]
Mordant Blue 29(1667-99-8)Related Product Information
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