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ACID RED 66

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ACID RED 66 Basic information
ACID RED 66 Chemical Properties
  • Melting point:181-188 °C
  • Flash point:300°(572°F)
  • storage temp. room temp
  • solubility ethanol: 1 mg/mL
  • form Powder
  • Colour Index  26905
  • color Dark brown powder
  • Water Solubility Appreciable (> 10%)
  • BRN 3883900
  • Stability:Stable. Incompatible with strong oxidizing agents.
  • CAS DataBase Reference4196-99-0
  • EPA Substance Registry SystemC.I. Acid Red 66, disodium salt (4196-99-0)
Safety Information
MSDS
ACID RED 66 Usage And Synthesis
  • Chemical Propertiesdark red powder
  • DefinitionChEBI: An organic sodium salt having 2-[(2-hydroxynaphthalen-1-yl)diazenyl]-5-[(4-sulfonatophenyl)diazenyl]benzene-1-sulfonate as the counterion. Used as a plasma stain in Masson's trichrome.
  • Preparation3,4′-Disulfo-4-aininoazobenzene?diazo, and Naphthalen-2-ol coupling.
  • Properties and Applicationsyellow light red. Soluble in water for orange red, slightly soluble in ethanol and soluble fiber element, insoluble in other organic solvents. In the dark for the strong sulfuric acid, diluted for orange red, then have a brown precipitation. In nitric acid solution for blue, then into amber color. In water solution to join strong hydrochloric acid have red precipitate; Add thick sodium hydroxide solution have yellow brown precipitation.
    Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
    Fading Stain Fading Stain Fading Stain
    ISO 3-4 3-4 3 5
    AATCC 4 4 2 3 1 4
ACID RED 66(4196-99-0)Related Product Information
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