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4-Nitro-o-phenylenediamine

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4-Nitro-o-phenylenediamine Basic information
4-Nitro-o-phenylenediamine Chemical Properties
  • Melting point:199-201 °C(lit.)
  • Boiling point:276.04°C (rough estimate)
  • Density 1.3682 (rough estimate)
  • refractive index 1.6910 (estimate)
  • storage temp. Store below +30°C.
  • solubility 1 N HCl: ethanol, 1:1: soluble50mg/mL
  • pka2.06±0.10(Predicted)
  • form Powder
  • color Brown-red
  • Water Solubility 1.2 g/L (20 ºC)
  • Merck 14,6622
  • BRN 608106
  • Stability:Stable. Incompatible with strong acids, strong reducing agents, strong oxidizing agents, acid chlorides, acid anhydrides.
  • InChIKeyRAUWPNXIALNKQM-UHFFFAOYSA-N
  • CAS DataBase Reference99-56-9(CAS DataBase Reference)
  • EPA Substance Registry SystemNitro-o-phenylenediamine (99-56-9)
Safety Information
MSDS
4-Nitro-o-phenylenediamine Usage And Synthesis
  • Chemical PropertiesOrange-red powder
  • Uses4-Nitro-1,2-phenylenediamine is a hair dye constituent with potential mutagenic activity.
  • DefinitionChEBI: The primary amino compound that is 1,2-phenylenediamine (o-phenylenediamine) substituted at the 4- (para-) position by a nitro group.
  • Production MethodsCommercial production of 4-nitro-o-PDA was first reported in the United States in 1946. Two U.S. companies were reported to produce undisclosed amounts of the chemical in 1975. U.S. imports of 4-nitro-o-PDA were reported to be about 1900 kg in 1973 and 1100 kg in 1975. 4-Nitro-o-PDAis used in fur dyes, inks, and semipermanent yellow hair coloring formulations requiring a yellow color component that does not involve the use of hydrogen peroxide in the color development.
    Occupational exposure to 4-nitro-o-PDA may occur through inhalation and dermal contact with this compound at workplaces where p-PDA is produced or used. The general population may be exposed to the compound via dermal contact, primarily through the use of hair dyes containing this compound.
  • General DescriptionDark red needles or red solid.
  • Air & Water ReactionsInsoluble in water.
  • Reactivity Profile4-Nitro-o-phenylenediamine is incompatible with strong oxidizing agents, strong acids, strong reducing agents, acid chlorides and acid anhydrides.
  • Fire HazardFlash point data for 4-Nitro-o-phenylenediamine are not available; however, 4-Nitro-o-phenylenediamine is probably combustible.
  • Safety ProfileModerately toxic by ingestion. An experimental teratogen. Other experimental reproductive effects. Mutation data reported. Questionable carcinogen. When heated to decomposition it emits toxic fumes of NOx,.
  • Purification MethodsCrystallise the diamine from water. [Beilstein 13 IV 75.]
4-Nitro-o-phenylenediamine Preparation Products And Raw materials
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