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This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.
1.344 at 20.0 °C [1] ... Gas properties Std enthalpy change ... Vapor-liquid Equilibrium for Acetonitrile/Methanol [4] P = 760 mmHg BP Temp.
This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.
Gas properties Std enthalpy change of formation, Δ f H o gas: −218.5 kJ/mol Standard molar entropy, S o gas: 295.35 J/(mol K) Heat capacity, c p: 75 J/(mol K) van der Waals' constants [3] a = 1409.4 L 2 kPa/mol 2 b = 0.0994 liter per mole
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 ...
Retention decreases as the amount of polar solvent in the mobile phase increases. 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 ...
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A comparison of S N 1 to S N 2 reactions is to the right. On the left is an S N 1 reaction coordinate diagram. Note the decrease in ΔG ‡ activation for the polar-solvent reaction conditions. This arises from the fact that polar solvents stabilize the formation of the carbocation intermediate to a greater extent than the non-polar-solvent ...