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
Risks
- Toxic by ingestion and inhalation.
- Strongly irritating to skin.
- Fisher Scientific: MSDS
Physical and Chemical 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 C |
| Molecular Weight | mol. wt.=108.14 |
| Boiling Point | 267 C |
Resources and Citations
- 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