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Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
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In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
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Quaternary Ammonium Compounds: Simple in Structure, Complex in Application.

Filip Bureš1

  • 1The Institute of Technology and Business in České Budějovice, Okružní 517/10, 370 01, České Budějovice, Czech Republic. bures@mail.vstecb.cz.

Topics in Current Chemistry (Cham)
|May 8, 2019
PubMed
Summary
This summary is machine-generated.

Quaternary ammonium compounds (QACs) are versatile chemicals with unique properties. This review explores their preparation, fundamental characteristics, and diverse applications, including catalysis and antimicrobial uses.

Keywords:
AntimicrobialHerbicideQACQuaternary ammonium compoundsSurfactantSynthesis

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Area of Science:

  • Chemistry, Organic
  • Materials Science
  • Biochemistry

Background:

  • Quaternary ammonium compounds (QACs) represent a unique class of cationic substances bridging organic and inorganic chemistry.
  • Their distinct physicochemical properties underpin a broad spectrum of applications.

Purpose of the Study:

  • To introduce quaternary ammonium compounds (QACs) and explore their extensive application potential.
  • To review fundamental properties, preparation methods, and utilization in organic synthesis.

Main Methods:

  • Literature review of QACs properties, synthesis, and applications.
  • Focused discussion on tetraalkylammonium compounds with linear alkyl chains.

Main Results:

  • QACs serve as reactive substrates, reagents, phase-transfer catalysts, ionic liquids, electrolytes, frameworks, surfactants, herbicides, and antimicrobials.
  • Their versatility spans organic synthesis to material science and biological applications.

Conclusions:

  • Quaternary ammonium compounds (QACs) possess significant potential across various scientific and industrial fields.
  • Further research into their applications and impact is warranted.