ABOUT COMPLEX FORMATION IN THE “CHROMIC SULFATE (III) – ALUMINUM SULFATE – TITANYL SULFATE – WATER” SYSTEM


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Abstract

The application of heteropolynuclear complex compounds for leather tanning process is the alternative of traditional chrome tanning agents and allows solving a number of issues of leather factories: to improve the quality of products, expand its product range, ensure the principle of low-waste production using environmentally sound chemical materials, and decrease the airway cancer rate of the employees.

The paper describes the study of complex formation in the “chromic sulfate (III) – aluminum sulfate – titanyl sulfate – water” quadruple system using two methods: Ostromyslenskiy-Zhoba method and the isothermal solubility method.

The author used Ostromyslenskiy-Zhoba method to carry out the spectrophotometric study of solutions containing ions of chrome (III), titanyl and aluminum in the simultaneous presence of cations of two and three metals. Absorption spectra were measured in the area of wavelengths of 300–700 nanometers in an hour after preparing a solution. Studying the dependencies of the light absorption coefficients on the aluminum sulfates molar fraction at various wavelengths, the author determined the feasibility of chrome-titan-aluminum complex compounds formation. However, this method did not give a straight answer on the existence of fixed composition and a certain amount of complex particles in solutions.

Further research using the isothermal solubility method defined the crystallization region of triple heteropolynuclear complex compounds containing chromium (III), titanium and aluminum. To carry out the experiment, the author added the third salt to saturated euthonic and peritonic solutions of initial triplex systems until the formation of new solid phase. The derived solutions were thermostated at the temperature of 25° С. Using Mertslin’s method of sections, the composition of solutions was defined according to the “composition – refraction index” characteristic curves. The refraction index constancy denoted the establishment of equilibrium between solid and fluid phases. 

Isothermal solubility method allowed identifying the estimated bulk compositions of chrome-titan-aluminum complexes calculated using the solubility diagram.  

About the authors

Marina Aleksandrovna Troshina

Togliatti State University, Togliatti

Author for correspondence.
Email: tma197529@mail.ru

PhD (Engineering), assistant professor of Chair “Chemistry, chemical processes and technologies”

Russian Federation

References

  1. Isaev I.K., ed. Vozdeystvie na organism cheloveka opasnykh i vrednykh ekologicheskikh faktorov. Metrologicheskie aspekty [Impact on a human body of dangerous and harmful ecological factors. Metrological aspects]. Moscow, PAIMSPubl., 1997. Vol. 1, 510 p.
  2. Khomchenko G.P., Tsitovich I.K. Neorganicheskaya khimiya [Inorganic chemistry]. Moscow, Vysshayashkola Publ., 1987. 464 p.
  3. Rybalsky N.G., ed. Ekologiya i bezopasnost’. T. 2. Ekologicheskaya bezopasnost’ [Ecology and safety. T. 2. Ecological safety]. Moscow, VNIIPI Publ., 1993. Part 1, 300 p.
  4. Vrednye veshchestva v promyshlennosti. Ch. 2. Neorganicheskie elementoorganicheskie soedineniya [Harmful substances in the industry. P. 2. Inorganic organometallic compounds]. Leningrad, Gosudarstvennoe nauchno-tekhnicheskoe izdatelstvo khimicheskoy literatury Publ., 1954. 627 p.
  5. Sidorin V.F., Shkaranda I.T., Roman A.S. Complexing in the systems containing compounds of chrome, a titanium, zirconium and aluminum. Izvestiya vuzov. Tekhnologiya legkoy promyshlennosti, 1983, vol. 2, no. 2, pp. 88–91.
  6. Sannikov Yu.I. Hydrolysis of perchlorates of chrome (III) and aluminum. Zhurnal neorganicheskoy khimii, 1967, vol. 2, no. 10, pp. 2651–2659.
  7. Shimenovich B.S., Mikhaylov A.N., Bogdanov N.V. Formation of complex compounds in the solutions containing chrome (III) and aluminum. Message 1. Kozhevenno-obuvnaya promyshlennost’, 1989, no. 2, pp. 54–57.
  8. Shimenovich B.S., Mikhaylov A.N., Bogdanov N.V. Formation of complex compounds in the solutions containing chrome (III) and aluminum. Message 2. Kozhevenno-obuvnaya promyshlennost’, 1989, no. 5, pp. 40–43.
  9. Beyseuov K.B. Novoe v mineralnom dublenii kozh [New in mineral tannage of skin]. Moscow, Legprombytizdat Publ., 1993. 128 p.
  10. SakhyM. Nauchnye osnovy malootkhodnykh tekhnologiy polucheniya I primeneniya ekologicheski bezvrednykh poliyadernykh kompleksnykh soedineniy. Diss. dokt. tekhn. nauk [Scientific bases of low-waste technologies of receiving and application of ecologically harmless polynuclear complex compounds]. Taraz, 1999. 288 p.
  11. Sabraliyeva Zh.I., Sakhiyev M.S. Research of a complexing in threefold system “Titanylsulfate – chromesulfate – water”. Nauka I obrazovanie Yuzhnogo Kazakhstana, 1998, no. 3, pp. 41–45.
  12. Sakhiev M.S., Madiev U.K. Research an alyumotitanovy complex in an aqueous solution at 25° C. Nauka I obrazovanie Yuzhnogo Kazakhstana, 1998, no. 3, pp. 52–54.
  13. Roman A.S., Romanenko O.V., Konopelkina L.V. Research of the tanning properties of chromtitanic extracts. Message 1. Izvestiya vuzov. Tekhnologiya legkoy I pishchevoy promyshlennosti, 1973, no. 6, pp. 65–67.
  14. Roman A.S., Romanenko O.V., Konopelkina L.V. Research of the tanning properties of chromtitanic extracts. Message 2. Izvestiya vuzov. Tekhnologiy alegkoy i pishchevoypromyshlennosti, 1974, no. 1, pp. 53–57.
  15. Bulatov M.I., Kalinkin I.P. Prakticheskoe rukovodstvo po fotokolorimetricheskim I spektrofotometricheskim metodam analiza [Practical guidance by photocolorimetric and spectrophotometric methods of the analysis]. Leningrad, Khimiya Publ., 1968. 384 p.
  16. Turarova N.Ya. About a possibility of definition of structure of a complex on a constitution diagram of a heterogeneous system of the AH type – VH – solvent. Koordinatsionnaya khimiya, 1984, no. 3, pp. 1165–1173.
  17. Nikurashina L.I., Mertslin R.V. Metod secheniy. Prilozhenie ego k izucheniyu mnogofaznogo sostoyaniya mnogokomponentnykh sistem [Method of sections. Its annex to studying of a polyphase condition of multicomponent systems]. Saratov, Saratovskiy gos. universitet Publ., 1969. 121 p.
  18. Bimurzayeva Z.E. Sintez, issledovanie fiziko-khimicheskikh svoystv i dubyashchego deystviya alyumokhromtsirkonievykh I zhelezokhromtsirkovievykh kompleksov. Diss. kand. tekhn. nauk [Synthesis, research of physical and chemical properties and the tanning action the Alyumohromzirconium and the ironhromzirconium of complexes]. Taraz, 1999. 131 p.
  19. Zharlykapova R.B. Sintez, issledovanie stroeniya I dubyashchego deystviya geteropoliyadernykh kompleksov, ispolzuemykh v kozhevennoy promyshlennosti. Diss. kand. tekhn. nauk [Synthesis, research of a structure and the tanning action of the heteropolynuclear complexes used in the tanning industry]. Moscow, 1991. 129 p.
  20. Hartley F., Berges K., Olkok R. Ravnovesie v rastvorakh [Equilibriums in solutions]. Moscow, Mir Publ., 1983. 360 p.
  21. Viktorov M.M. Graficheskie raschety v tekhnologii neorganicheskikh veshchestv [Graphic calculations in technology of mineral substances]. Leningrad, Khimiya Publ., 1972. 462 p.
  22. Anosov V.Ya., Ozerova M.I., Fialkov U.Ya. Osnovy fiziko-khimicheskogo analiza [Bases of the physical and chemical analysis]. Moscow, Nauka Publ., 1976. 334 p.

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