Skip to main content
Chemistry LibreTexts

E2. Base Dissociation Constants at 25°C

  • Page ID
    9067
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)

    Name Formula \(K_b\) \(pK_b\)
    Ammonia NH3 1.8 × 10−5 4.75
    Aniline C6H5NH2 7.4 × 10−10 9.13
    n-Butylamine C4H9NH2 4.0 × 10−4 3.40
    sec-Butylamine (CH3)2CHCH2NH2 3.6 × 10−4 3.44
    tert-Butylamine (CH3)3CNH2 4.8 × 10−4 3.32
    Dimethylamine (CH3)2NH 5.4 × 10−4 3.27
    Ethylamine C2H5NH2 4.5 × 10−4 3.35
    Hydrazine N2H4 1.3 × 10−6 5.9
    Hydroxylamine NH2OH 8.7 × 10−9 8.06
    Methylamine CH3NH2 4.6 × 10−4 3.34
    Propylamine C3H7NH2 3.5 × 10−4 3.46
    Pyridine C5H5N 1.7 × 10−9 8.77
    Trimethylamine (CH3)3N 6.3 × 10−5 4.20

    E2. Base Dissociation Constants at 25°C is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

    • Was this article helpful?