Picramic_acid

Picramic acid

Picramic acid

Chemical compound

Picramic acid, also known as 2-amino-4,6-dinitrophenol,[3] is an acid obtained by neutralizing an alcoholic solution of picric acid with ammonium hydroxide. Hydrogen sulfide is then added to the resulting solution, which turns red, yielding sulfur and red crystals. These are the ammonium salts of picramic acid, from which it can be extracted using acetic acid.[4] Picramic acid is explosive and very toxic. It has a bitter taste.[5]

Quick Facts Names, Identifiers ...

Along with its sodium salt (sodium picramate) it is used in low concentrations in certain hair dyes, such as henna, it is considered safe for this use provided its concentration remains low.[6]

References

  1. [1]
    "Picramic acid". www.chemsrc.com. Archived from the original on 2020-06-06. Retrieved 2019-04-05.
  2. [2]
    "2-Amino-4,6-dinitrophenol". pubchem.ncbi.nlm.nih.gov. Retrieved 27 December 2021.
  3. [3]
    "Haz-Map Category Details". Archived from the original on 2018-09-20. Retrieved 2014-04-09.
  4. [4]
    "Archived copy" (PDF). Archived (PDF) from the original on 2020-06-06. Retrieved 2014-04-09.{{cite web}}: CS1 maint: archived copy as title (link)
  5. [5]
    "PICRAMIC ACID (2-AMINO-4,6-DINITROPHENOL)". Archived from the original on 2011-08-29. Retrieved 2011-04-30.
  6. [6]
    "Final Report on the Safety Assessment of Sodium Picramate". Journal of the American College of Toxicology. 11 (4): 447–464. July 1992. doi:10.3109/10915819209141884. S2CID 208504486.
Share this article:

This article uses material from the Wikipedia article Picramic_acid, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.