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Phase Equilibria in the Sections of a Carbamide–Sodium Formate–Water System at 0 to –22°C and Anti-Icing Properties of the Salt Compounds

  • V. P. DanilovEmail author
  • E. A. Frolova
  • D. F. Kondakov
  • M. N. Brekhovskikh
TECHNOLOGY OF INORGANIC SUBSTANCES AND MATERIALS
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Abstract

The phase equilibria at 0 to –22°C in the sections of a carbamide–sodium formate–water system with ratios CO(NH2)2 : NaHCOO from 3 : 1 to 1 : 3 and anti-icing properties of salt compounds are studied. It is found that a compound with ratio of 1 : 1 has a temperature of the eutectic with ice of –22°C; i.e., it significantly decreases in comparison with the temperatures of the eutectics in binary systems containing carbamide or sodium formate. The compounds are characterized by a high melting capacity in relation to ice.

Keywords:

phase equilibria water–salt systems sodium formate carbamide anti-icing properties of salt compounds 

Notes

FUNDING

This work was supported by the Program of Basic Research of the Presidium of the Russian Academy of Sciences no. 39 “Basic Principles and Energy-Efficient Resource-Saving Innovation Technologies for the Processing of Mineral Raw Materials and Recycling of Industrial and Household Wastes.”

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • V. P. Danilov
    • 1
    Email author
  • E. A. Frolova
    • 1
  • D. F. Kondakov
    • 1
  • M. N. Brekhovskikh
    • 1
  1. 1.Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of SciencesMoscowRussia

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