The interaction of boric acid with potassium nitrate, the main component of NPK fertilizers, was studied in 0.01 M dilute solutions using the isomolar sequence method. To determine the possible direction of the reaction in the H3BO3 – KNO3 – H2O system, changes in the properties of pH, density, refractive index, viscosity and crystallization temperature of mixtures of 0.01 M boric acid and potassium nitrate solutions in different ratios were determined. The inflection points of the “composition-pH”, “composition-density”, “composition-viscosity” and refractive index dependences were determined. Regardless of the initial concentration of boric acid, when a small amount of potassium nitrate was added, the composition of the solution changed.
| Mualliflar | Yuldasheva, Madina, Makhkamova, Dilnoza, Turayev, Zokirjon |
|---|---|
| Jurnal | Наманган муҳандисликтехнология институти илмийтехника журнали |
| Nashr sanasi | 2025-09-30 |
| Jild | 10 |
| Son | 3 |
| Betlar | 188-193 |
| Til | Ingliz |
| DOI | 10.61151/stjniet.v10i3.873 |
DOI: 10.61151/stjniet.v10i3.873 · Maqolaning asl sahifasi
boric acid, potassium nitrate, isomolar series, refractive index, microelements, density, viscosity, temperature, binary eutectic point
Using the GC-MS method, 36 compounds were identified in the essential oil obtained by hydrodistillation from the air-dried above-ground part of Salvia sarawschanica by Regel et Schmalh, which constituted 95.1% of the…
In this study, to conserve valuable cotton cellulose, the paper pulp was composed of light industrial cocooning waste from our Republic (specifically, the mat and fiber produced during cocooning at the Margulon…
The use of biofuels in electricity and heat supply helps conserve fossil fuel resources and offers a pathway to mitigate environmental problems. In this context, processing agricultural residues and employing them as…
The study explores the influence of fibrous raw materials, refining processes, and adhesive substances on the development of strength properties in paper and cardboard products. Special attention is given to the role of…
The use of biofuels in electricity and heat supply is a key pathway for conserving fossil resources and lowering environmental burdens. In particular, converting agricultural residues into biofuels can enhance energy…
This article investigates the effectiveness of perlite as a filtering agent for the removal of waxy substances from sunflower oil during the winterization process. Sunflower oil tends to become cloudy at low…
In the case of increasing anthropogenic load and changing climate factors, the study of the physical properties of soils in various regions of the Republic is becoming especially relevant. Particular emphasis is placed…
In this study, the energetics of adsorption of water molecules on modified (enriched and activated) Dehkanabad bentonite were studied in depth. Based on experimental data, adsorption isotherms and differential heats of…
This article discusses the influence of stabilizing agents on the stability and particle size of silver nanoparticles (AgNPs) during synthesis. AgNPs were synthesized via chemical reduction of silver nitrate (AgNO₃)…
A comparative thermal analysis was conducted on three industrial samples of low-molecular-weight polyethylene (LMWPE)—a by-product of polyethylene production—with the aim of determining optimal conditions for…
Наманган муҳандисликтехнология институти илмийтехника журнали — barcha maqolalar