Title: Hoffman–Weeks plot
Long Title: IUPAC Gold Book - Hoffman–Weeks plot
DOI: 10.1351/goldbook.12775
Status: current

Definition
Plot of melting temperature, \(T_{\rm{m}}\), vs. crystallisation temperature, \(T_{\rm{cr}}\).

Notes
1) A Hoffman–Weeks plot is used to determine the equilibrium melting temperature, \(T_{\rm{m}}^{0}\).
2) \(T_{\rm{m}}^{0}\) is determined as the intersection of the straight line that describes \(T_{\rm{cr}} = T_{\rm{m}}\) with the extrapolated curve that is drawn through the experimental data points (\(T_{\rm{cr}}\), \(T_{\rm{m}}\)).

Related Term
- equilibrium melting temperature: https://goldbook.iupac.org//terms/view/12766

Source
- PAC, 2013, 85, 1017. 'Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)' on page 1031 (https://doi.org/10.1351/PAC-REC-12-03-02)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/12775/html
- json: https://goldbook.iupac.org/terms/view/12775/json
- xml: https://goldbook.iupac.org/terms/view/12775/xml

Citation: Citation: 'Hoffman–Weeks plot' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.12775
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Accessed: 2026-08-10T02:14:07+00:00