DOI 10.17586/0021-3454-2023-66-7-594-601
UDC 681.785.2
REFRACTOMETRIC METHODS AND MEANS OF CONTROL OF ETHANOL, PROPANOL, AND THEIR AQUEOUS SOLUTIONS
University at the EurAsEC Inter-Parliamentary Assembly, Department of Mathematics and Information Technologies;
O. V. Afanaseva
St. Petersburg Mining University, Department of System Analysis and control; St. Petersburg State University of Aerospace Instrumentation, Department of Applied Mathematics;
A. V. Dagaev
Ivangorod Humanitarian and Technical Institute, Branch of St. Petersburg State University of Aerospace Instrumentation, Department of Mathematics, Informatics and Information Customs Technologies; Associate Professor
V. V. Kurlov
St. Petersburg State University of Aerospace Instrumentation, Department of Innovation and Integrated Quality Systems;
E. E. Majorov
Saint-Petersburg state university of aerospace instrumentation; Associate professor
I. S. Tayurskaya
St. Petersburg University of Management Technologies and Economics, Department of Information Technologies and Mathematics;
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Reference for citation: Arefiev A. V., Afanaseva О. V., Dagaev A. V., Kurlov V. V., Maiorov E. E., Tayurskaya I. S. Refractometric methods and means of control of ethanol, propanol, and their aqueous solutions. Journal of Instrument Engineering. 2023. Vol. 66, N 7. P. 594—601 (in Russian). DOI: 10.17586/0021-3454-2023-66-7-594-601.
Abstract. Results of research into ethanol, propanol and their aqueous solutions by the total internal reflection method, which is characterized by high accuracy and provides reliable measurements, are presented. Optical scheme and technical characteristics of the AR-4 refractometer designed to measure the optical parameters of the studied substances are given. The dependences of the refractive index on the concentration and temperature of solutions were obtained at concentrations k = 0…100% and temperatures t = 10…40 ºС at a wavelength λ = 589 nm; cubic interpolations of the refractive index dependences of the concentration and temperature of the solutions are demonstrated.
Abstract. Results of research into ethanol, propanol and their aqueous solutions by the total internal reflection method, which is characterized by high accuracy and provides reliable measurements, are presented. Optical scheme and technical characteristics of the AR-4 refractometer designed to measure the optical parameters of the studied substances are given. The dependences of the refractive index on the concentration and temperature of solutions were obtained at concentrations k = 0…100% and temperatures t = 10…40 ºС at a wavelength λ = 589 nm; cubic interpolations of the refractive index dependences of the concentration and temperature of the solutions are demonstrated.
Keywords: refractometer, ethanol, propanol, refractive index, temperature, concentration, prism, solution
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