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This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.
A completely polar bond is more correctly called an ionic bond, and occurs when the difference between electronegativities is large enough that one atom actually takes an electron from the other. The terms "polar" and "nonpolar" are usually applied to covalent bonds, that is, bonds where the polarity is not complete. To determine the polarity ...
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:
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 ...
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.
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Polar aprotic solvents: acetone: C 3 H 6 O 56.05 °C 21.83 0.7845 g/cm 3: 2.91 reacts with strong acids and bases acetonitrile : CH 3 CN 81.3 - 82.1 °C 38.3 0.776 g/cm 3: 3.20 reacts with strong acids and bases dichloromethane: CH 2 Cl 2: 39.6 °C 9.08 1.3266 g/cm 3: 1.6 low boiling point dimethylformamide (CH 3) 2 NCHO 153 °C 36.7 0.95 g/cm ...
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