Results 41 to 50 of about 25,783 (304)

Thermodynamic and Thermomicroscopy Study of Atorvastatin Calcium-Succinic Acid Binary Mixtures

open access: yesIndonesian Journal of Chemistry, 2017
Binary mixtures of pharmaceuticals significantly affect the physical and chemical properties of each component. The aim of this work was to explore the thermal behavior and solid state transformation of binary mixture of atorvastatin calcium and succinic
Yudi Wicaksono   +3 more
doaj   +1 more source

Influence of Carboxylate Anions on Phase Behavior of Choline Ionic Liquid Mixtures

open access: yesMolecules, 2020
Mixing ionic liquids is a suitable strategy to tailor properties, e.g., to reduce melting points. The present study aims to widen the application range of low-toxic choline-based ionic liquids by studying eight binary phase diagrams of six different ...
Fred Elhi   +6 more
doaj   +1 more source

EUTECTIC MIXTURES RESULTING FROM DILUTION OF DEEP EUTECTIC SOLVENTS: TOOLS FOR CHARACTERIZATION

open access: yes, 2021
The development of green chemistry has been considered as one of the keys to achieve economic and environmental awareness in both industrial and academic research. Green chemistry has been defined as “the invention, design and application of chemical products and processes to reduce or to eliminate the use and generation of hazardous substances ...
openaire   +3 more sources

Combination of Enzymes and Deep Eutectic Solvents as Powerful Toolbox for Organic Synthesis

open access: yesMolecules, 2023
During the last decade, a wide spectrum of applications and advantages in the use of deep eutectic solvents for promoting organic reactions has been well established among the scientific community.
Davide Arnodo   +4 more
doaj   +1 more source

The solubility of rhenium in silicate melts: Implications for the geochemical properties of rhenium at high temperatures [PDF]

open access: yes, 2001
The solubility of rhenium (Re) in a haplobasaltic melt (anorthite-diopside eutectic composition) has been experimentally determined using the mechanically assisted equilibration technique at 1400°C as a function of oxygen fugacity (10−12 < fO2 ≤ 10−7 bar)
Dingwell, D.B.   +4 more
core   +1 more source

Methods for calculating specifi c electrical conductivity of the LiF+NaF mixtures melt [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Химия. Биология. Экология
The calculation of the specifi c electrical conductivity of lithium and sodium fl uorides mixtures melts is presented. The Iinterest in the LiF–NaF system melts is determined by their practical signifi cance.
Lavrenteva, Olga V.   +2 more
doaj   +1 more source

Pyrolysis of Urea-Thiourea Eutectic Mixture

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1971
尿素一チオ尿素共融混合物(モル比1:0.79)を調製し,この熱分解についてDTA・TGA・IR・UV,ペーパークロマトグラフィー,イオン交換クロマトグラフィーなどの物理的および化学的手段によって追求した・熱分解生成物中に非環状物の存在する最高の温度は230℃ で,この温度は尿素,チオ尿素の場合の中間に相当する。加熱生成物は最終的には尿素・チオ尿素の場合と同じ生成物が得られた。尿素,チオ尿素,尿素-チオ尿素共融混合物の3者についての動力学的解析ではまず熱分解反応は3段階より成ることが確かめられ,さらに第1段階は脱アンモニアなどによる重量減少5%位までのところであり,第2段階は環化によるトリアジン環の形成で,これが主要反応であることがわかり ...
Tadatomo ASAOKA   +2 more
openaire   +2 more sources

Performance and Phase Change Kinetic Investigations on Capric-Myristic Acid Eutectic Mixtures for Energy-Saving Construction

open access: yesMedžiagotyra
In the present study, capric acid and myrisic acid were first selected to prepare a capric acid-myrisic acid eutectic mixture using a compounding method.
Lin LI   +4 more
doaj   +1 more source

Deep eutectic solvents formed by pharmaceutical ingredients and their potential influences on solid preparations [PDF]

open access: yesJournal of the Serbian Chemical Society
Some active pharmaceutical ingredients (APIs) and excipients can form deep eutectic solvents (DESs), which will lead to severe defects in solid preparations.
Toufouki Sara   +5 more
doaj   +1 more source

Pharmaceutical eutectic combination of matrine and paeonol for enhanced oral bioavailability [PDF]

open access: yesBrazilian Journal of Pharmaceutical Sciences
Drug-drug eutectic system is a promising approach to provide in vitro and in vivo benefits. However, only a few eutectic combinations are reported with excellent pharmaceutical and therapeutical performances.
Chen Liu   +6 more
doaj   +1 more source

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