Letter | Published:

Titration of Mixtures of Acids

Naturevolume 180pages805806 (1957) | Download Citation



THE determination of the degree of polymerization of polyamides or polypeptides by end-group titration is, in effect, a determination of the amount of the weakly acidic carboxyl group (dissociation constant K 2) in presence of a large excess of the base of a stronger acid, the amide or peptide group (dissociation constant K 1).

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Britton, H. T. S., “Hydrogen Ions&” (Chapman and Hall, 1955).

  2. 2

    Meggy, A. B., and Sims, D., J. Chem. Soc., 33 (1956).

  3. 3

    Vickerstaff, T., “The Physical Chemistry of Dyeing” (Oliver and Boyd, 1954).

Download references

Author information


  1. Department of Textile Industries, University of Leeds

    • D. SIMS
    •  & L. PETERS


  1. Search for D. SIMS in:

  2. Search for L. PETERS in:

About this article

Publication history

Issue Date




By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.