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4,4'-Diamino-2,2'-stilbenedisulfonic acid

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4,4'-Diamino-2,2'-stilbenedisulfonic acid Basic information
4,4'-Diamino-2,2'-stilbenedisulfonic acid Chemical Properties
  • Melting point:300 °C
  • Density 1.4732 (rough estimate)
  • refractive index 1.6510 (estimate)
  • storage temp. -20°C Freezer
  • pka-1.58±0.50(Predicted)
  • form Crystalline Powder
  • color Cream to yellow-brown
  • Water Solubility <0.1 g/100 mL at 23 ºC
  • Merck 14,595
  • BRN 629516
  • Stability:Stable. Combustible. Incompatible with iron, strong oxidizing agents.
  • CAS DataBase Reference81-11-8(CAS DataBase Reference)
  • EPA Substance Registry SystemAmsonic acid (81-11-8)
Safety Information
MSDS
4,4'-Diamino-2,2'-stilbenedisulfonic acid Usage And Synthesis
  • Chemical PropertiesLight Yellow Powder
  • UsesIn manufacture of dyes, bleaching agents.
  • General DescriptionOdorless yellowish microscopic needles or cream-colored powder. pH approximately 4.3 at 30 g/L water (suspension).
  • Air & Water ReactionsInsoluble in water.
  • Reactivity Profile4,4'-Diamino-2,2'-stilbenedisulfonic acid is incompatible with iron. 4,4'-Diamino-2,2'-stilbenedisulfonic acid forms sparingly water-soluble, crystalline salts with many bisquaternary ammonium bases.
  • Fire HazardFlash point data for 4,4'-Diamino-2,2'-stilbenedisulfonic acid are not available; however, 4,4'-Diamino-2,2'-stilbenedisulfonic acid is probably combustible.
4,4'-Diamino-2,2'-stilbenedisulfonic acid Preparation Products And Raw materials
4,4'-Diamino-2,2'-stilbenedisulfonic acid(81-11-8)Related Product Information
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