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2. Solvent effects - Wikipedia

   en.wikipedia.org/wiki/Solvent_effects

   Water, being the most polar-solvent listed above, stabilizes the ionized species to a greater extent than does DMSO or Acetonitrile. Ionization - and, thus, acidity - would be greatest in water and lesser in DMSO and Acetonitrile, as seen in the table below, which shows p K a values at 25 °C for acetonitrile (ACN) [ 2 ] [ 3 ] [ 4 ] and ...

3. Aqueous normal-phase chromatography - Wikipedia

   en.wikipedia.org/wiki/Aqueous_normal-phase...

   In reversed phase chromatography, the most polar compounds elute first with the more nonpolar compounds eluting later. The mobile phase is generally a mixture of water and miscible polarity-modifying organic solvent, such as methanol, acetonitrile or THF. Retention increases as the fraction of the polar solvent (water) in the mobile phase is ...

4. Polar aprotic solvent - Wikipedia

   en.wikipedia.org/wiki/Polar_aprotic_solvent

   A polar aprotic solvent is a solvent that lacks an acidic proton and is polar. Such solvents lack hydroxyl and amine groups. In contrast to protic solvents, these solvents do not serve as proton donors in hydrogen bonding, although they can be proton acceptors. Many solvents, including chlorocarbons and hydrocarbons, are classifiable as aprotic ...

5. Reversed-phase chromatography - Wikipedia

   en.wikipedia.org/wiki/Reversed-phase_chromatography

   Isopropanol (2-propanol) can also be used, because of its strong eluting properties, but its use is limited by its high viscosity, which results in higher backpressures. Both acetonitrile and methanol are less viscous than isopropanol, although a mixture of 50:50 percent of methanol:water is also very viscous and causes high backpressures.

6. Acetonitrile (data page) - Wikipedia

   en.wikipedia.org/wiki/Acetonitrile_(data_page)

   log 10 of Acetonitrile vapor pressure. ... Vapor-liquid Equilibrium for Acetonitrile/Methanol [4] P = 760 mmHg BP Temp. °C % by mole methanol liquid vapor 79.20: 2.5:

7. List of boiling and freezing information of solvents - Wikipedia

   en.wikipedia.org/wiki/List_of_boiling_and...

   This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.

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9. Acetonitrile - Wikipedia

   en.wikipedia.org/wiki/Acetonitrile

   Acetonitrile is used mainly as a solvent in the purification of butadiene in refineries. Specifically, acetonitrile is fed into the top of a distillation column filled with hydrocarbons including butadiene, and as the acetonitrile falls down through the column, it absorbs the butadiene which is then sent from the bottom of the tower to a second separating tower.