Benzanthrone (BZA) is a polycyclic aromatic hydrocarbon. It is a yellow solid.[1] Its derivatives are used as a dyestuff intermediate for anthraquinone-based dyes.[2] Dehydrogenative coupling gives violanthrone. It is prepared by reduction of anthroquinone to anthrone followed by alkylation with a mixture of glycerol and sulfuric acid.

It is a basic substance with fluorescent and luminescent properties. It can be used for photosensitization, and as a charge transport material. It is also used in pyrotechnics industry, mainly as a component of some older formulations of green and yellow colored smokes, often together with Vat Yellow 4; its US military specification is MIL-D-50074D.[3]

Safety

Benzanthrone causes itching and burning sensations on exposed skin, together with erythema, dermatitis, and skin pigmentation.[4]

See also

References

  1. ^ Macleod, L. C.; Allen, C. F. H. (1934). "Benzanthrone". Organic Syntheses. 14: 4. doi:10.15227/orgsyn.014.0004.
  2. ^ Bien, H.-S.; Stawitz, J.; Wunderlich, K. (2005). "Anthraquinone Dyes and Intermediates". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a02_355. ISBN 978-3-527-30673-2.
  3. ^ Benzanthrone. National Academies Press (US). 1999.
  4. ^ "Appendix A: Benzanthrone". Toxicity of Military Smokes and Obscurants. Vol. 3. 1999.
Allikas: http://en.wikipedia.org/wiki/Benzanthrone
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