Skip to main content
SpringerLink
Log in

New chemical markers based on phthaleins

  • Various Technologies
  • Published:
Russian Journal of Applied Chemistry Aims and scope Submit manuscript

Abstract

New chemical markers based on mixtures of individual phthaleins were developed. These markers are characterized by high level of secrecy in use, good transferability to contacting persons, enhanced retention on the objects marked, and reliable identification of phthaleins by expert investigation. The experimental studies of the markers obtained show that the synthesized mixture of three phthalein homologs contains the previously unknown phthalein with unsymmetrical phenolic substituents, o-cresolphenolphthalein [3-(3′-methyl-4′-hydroxyphenyl)-3-(4″-hydroxyphenyl)phthalide], which decreases the probability of the marker falsification. Quantum-chemical calculations of the reaction of the o-cresolphthalein synthesis show that the overall reaction is characterized by small positive changes in the enthalpy and Gibbs free energy, and the second and third steps occur with negative changes in the Gibbs energy. The optimum structure of the transition state was calculated.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Nekhoroshev, S.V., Turov, Yu.P., Nekhoroshev, V.P., et al., J. Anal. Chem., 2010, vol. 65, no. 10, pp. 988–994.

    Article  CAS  Google Scholar 

  2. RF Patent 2461596, Publ. 2011.

  3. RF Patent 2301812, Publ. 2007.

  4. Khimicheskaya entsiklopediya (Chemical Encyclopedia), Zefirov, N.S., Ed., Moscow: Bol’shaya Ross. Entsiklopediya, 1999, vol. 5.

    Google Scholar 

  5. RF Patent 2497860, Publ. 2014.

  6. Gaussian 03, Revision B03, Pittsburgh, PA: Gaussian, 2003.

  7. Becke, A.D., J. Chem. Phys., 1993, vol. 98, pp. 5648–5653.

    Article  CAS  Google Scholar 

  8. Lee, C., Yang, Y., and Parr, R.G., Phys. Rev., 1988, vol. 37, pp. 785–789.

    Article  CAS  Google Scholar 

  9. Peng, C. and Schlegel, X.B., Israel J. Chem., 1994, vol. 33, pp. 449–458.

    Article  Google Scholar 

  10. Lebedev, A.T., Mass-spektrometriya v organicheskoi khimii (Mass Spectrometry in Organic Chemistry), Moscow: BINOM, 2003.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Yugra State University, Khanty-Mansiisk, ul. Chekhova 16, Khanty-Mansi Autonomous Okrug, 628012, Russia

    S. V. Nekhoroshev & A. V. Nekhorosheva

  2. Surgut State University, Surgut, ul. Lenina 1, Khanty-Mansi Autonomous Okrug, 628412, Russia

    V. P. Nekhoroshev & A. K. Gasparyan

  3. National Research Tomsk Polytechnic University, pr. Lenina 30, Tomsk, 634050, Russia

    O. Kh. Poleshchuk

  4. Tomsk State Pedagogical University, ul. Kievskaya 60A, Tomsk, 634061, Russia

    A. G. Yarkova

Authors
  1. S. V. Nekhoroshev
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. P. Nekhoroshev
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. O. Kh. Poleshchuk
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. G. Yarkova
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. A. V. Nekhorosheva
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. A. K. Gasparyan
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. P. Nekhoroshev.

Additional information

Original Russian Text © S.V. Nekhoroshev, V.P. Nekhoroshev, O.Kh. Poleshchuk, A.G. Yarkova, A.V. Nekhorosheva, A.K. Gasparyan, 2015, published in Zhurnal Prikladnoi Khimii, 2015, Vol. 88, No. 4, pp. 665–672.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Nekhoroshev, S.V., Nekhoroshev, V.P., Poleshchuk, O.K. et al. New chemical markers based on phthaleins. Russ J Appl Chem 88, 711–718 (2015). https://doi.org/10.1134/S1070427215040278

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1070427215040278

Keywords

Search

Navigation