KINETICS STUDY ON NITRATION OF METHYL RICINOLEATE

Abdullah Abdullah; Triyono Triyono; Wega Trisunaryanti; Winarto Haryadi

doi:10.22146/ijc.21351

KINETICS STUDY ON NITRATION OF METHYL RICINOLEATE

https://doi.org/10.22146/ijc.21351

Abdullah Abdullah^(1*), Triyono Triyono⁽²⁾, Wega Trisunaryanti⁽³⁾, Winarto Haryadi⁽⁴⁾

(1) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Lambung Mangkurat University, Jl. A. Yani Km. 35,8 Banjarbaru, South Kalimantan
(2) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281
(3) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281
(4) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281
(*) Corresponding Author

Abstract

Kinetics parameter values of methyl ricinoleate nitration (rate constant, reaction order and the rate of reaction) have been determined. Nitration was carried out with both concentrations of HNO₃ and acetic anhydride in excess to the concentration of methyl ricinoleate. Thus, the kinetics parameter value was only affected by the concentration of methyl ricinoleate. Based on kinetic study conducted, it could be concluded that the nitration follows pseudo first-order, and the reaction rate for methyl ricinoleate with initial concentration of 0.375, 0.325 and 0.250 M were 3.736 x 10^-5, 2.471 x 10^-5, and 1.724 x 10^-5M/s respectively, with the rate constant at 28 °C was 6.667 x 10^-4 (s^-1). Based on evaluation of FTIR spectra could be estimated that the nitration produces compounds containing functional groups of -NO₃ and -NO₂.

Keywords

nitration; methyl ricinoleate; kinetics

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DOI: https://doi.org/10.22146/ijc.21351