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Hydrogen cyanide [2] 11.29 0.0881 Hydrogen fluoride [2] 9.565 0.0739 Hydrogen iodide [2] 6.309 0.0530 Hydrogen selenide: 5.338 0.04637 Hydrogen sulfide: 4.490 0.04287 Isobutane [2] 13.32 0.1164 Iodobenzene: 33.52 0.1656 Krypton: 2.349 0.03978 Mercury: 8.200 0.01696 Methane: 2.253 0.04278 Methanol: 9.649 0.06702 Methylamine [2] 7.106 0.0588 Neon ...
In chemistry, a protic solvent is a solvent that has a hydrogen atom bound to an oxygen (as in a hydroxyl group −OH), a nitrogen (as in an amine group −NH 2 or −NH−), or fluoride (as in hydrogen fluoride). In general terms, any solvent that contains a labile H + is called a protic solvent.
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.
Trifluoromethanol has a melting point of -82 °C and a calculated boiling point of about -20 °C. The boiling point is thus about 85 K lower than that of methanol. This fact can be explained by the absence of intramolecular H—F bonds, which are also not visible in the infrared gas phase spectrum.
Here is a similar formula from the 67th edition of the CRC handbook. Note that the form of this formula as given is a fit to the Clausius–Clapeyron equation, which is a good theoretical starting point for calculating saturation vapor pressures:
C(NH 2) + 3 + OH − ⇌ HNC(NH 2) 2 + H 2 O. The equilibrium is not complete because the acidity difference between guanidinium and water is not large. The approximate pK a values: 13.6 vs 15.7. Complete deprotonation should be done with extremely strong bases, such as lithium diisopropylamide. C(NH 2) + 3 Cl − + Li + N(C 3 H 7) − 2 → ...
Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75
It is also used as an acidic titrant in nonaqueous acid-base titration because it behaves as a strong acid in many solvents (acetonitrile, acetic acid, etc.) where common mineral acids (such as HCl or H 2 SO 4) are only moderately strong. With a K a = 5 × 10 14, pK a = −14.7 ± 2.0, [1] triflic acid qualifies as a superacid. It owes many of ...