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ACID RED 26 Basic information
ACID RED 26 Chemical Properties
  • Melting point:>300℃
  • form Fine Powder
  • Colour Index 16150
  • color Dark red to bordeaux
  • BRN 5709350
  • EPA Substance Registry SystemC.I. Food Red 5 (3761-53-3)
Safety Information
ACID RED 26 Usage And Synthesis
  • Chemical Propertiesdark red to bordeaux fine powder
  • UsesA stain used in histology and in Masson’s trichrome stain.
  • DefinitionChEBI: An organic sodium salt that is the disodium salt of 4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,7-disulfonic acid. Its use is largely confined to Masson's trichrome, where it gives a slight orange shading to the red of the cytoplasmic structure .
  • General DescriptionDark red crystals or red powder.
  • Air & Water ReactionsAzo dyes can be explosive when suspended in air at specific concentrations. Slightly soluble in water.
  • Reactivity ProfileACID RED 26 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class 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. ACID RED 26 is incompatible with strong oxidizing agents and strong acids .
  • Fire HazardFlash point data for ACID RED 26 are not available; however, ACID RED 26 is probably combustible.
  • Safety ProfileModerately toxic by intraperitoneal route. Questionable carcinogen with experimental carcinogenic and tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx and SOx.
ACID RED 26(3761-53-3)Related Product Information
ACID RED 26SupplierMore
  • Company Name:J & K SCIENTIFIC LTD.
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