Phenylenediamine

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Description

White to pink crystals that darken with exposure to air. Phenylenediamine is an aromatic compound that is used as a photographic developer and as a stabilizer for direct dyes.

Synonyms and Related Terms

p-diaminobenzene; 1,4-benzenediamine; o-phenylenediamine; CI 76076

Chemical structure

Phenylenediamine.jpg


Other Properties

Soluble in water, ethanol, chloroform and ether.

Turns black in contact with peroxide; turns brown on contact with iron chloride.

Composition C6H4(NH2)2
CAS 106-50-3
Melting Point 145-147
Molecular Weight mol. wt.=108.14
Boiling Point 267

Hazards and Safety

Toxic by ingestion and inhalation. Strongly irritating to skin.

Fisher Scientific: MSDS

Authority

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entries, 7437, 7438, 7439
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979

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