Prediction of Green Solvent Applicability in Cultural Heritage Using Hansen Solubility Parameters, Cremonesi Method and Integrated Toxicity Index

Andrea Macchia, Federica Valentini, Irene Angela Colasanti and Camilla Zaratti (camillazaratti5@gmail.com)
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Andrea Macchia: YOCOCU APS, Youth in Conservation of Cultural Heritage, Via Torquato Tasso 108, 00185 Rome, Italy
Federica Valentini: Sciences and Chemical Technologies Department, Tor Vergata University Rome, via della Ricerca Scientifica 1, 00133 Rome, Italy
Irene Angela Colasanti: YOCOCU APS, Youth in Conservation of Cultural Heritage, Via Torquato Tasso 108, 00185 Rome, Italy
Camilla Zaratti: Lab4green s.r.l, Via T. Tasso 108, 00185 Rome, Italy

Sustainability, 2025, vol. 17, issue 7, 1-33

Abstract: The transition toward sustainable conservation practices requires a scientifically ground approach to substituting traditional solvent systems with green alternatives. This study aims to facilitate the adoption of green solvents by restoration professionals by systematically evaluating their chemical compatibility and toxicological safety. By integrating Hansen solubility parameters (HSP), Relative Energy Difference (RED), and the Integrated Toxicity Index (ITI), we identified green solvents with high potential for replacing Cremonesi mixtures. The analysis revealed that ether-based solvents, such as 2,5-dimethyltetrahydrofuran and cyclopentyl methyl ether, exhibit high chemical affinity with Cremonesi mixtures, while esters and fatty acid methyl esters (FAMEs) offer a balanced combination of solubility and low toxicity. However, the study also underscores significant gaps in safety data (SDS) for many innovative solvents, highlighting the need for further toxicological evaluation before widespread implementation.

Keywords: green solvents; cultural heritage conservation; sustainable restoration; Hansen solubility parameters; Integrated Toxicity Index (ITI) (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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