The Chemistry of Art Conservation - colby.edu

The Chemistry of Art Conservation - colby.edu

The Chemistry of Art Conservation Hilary Jansen November 28, 2001 CH112

A little history... The Flood of Florence

Biblioteca Nazionale- 1,300,000 items damaged Library of the Conservatorio di Musica Cherubini- completely flooded The University- billions of lire in damage

Paint Chemistry Benzene Toluene Xylene

Napthalene Anthracene C H

3 C H

3 C H

3 The Painting Process

Base- canvas or wood Application of the primer Paint layers Varnish

What leads to the need for restoration? The Aging Process Accumulation of dust and sootsilicon particles

Burning candles and lamps- long chains of unsaturated fats Deposits of sulfates and carbonates Oxidation of fatty acids in the glue

The Environment Temperature humidity

How can art be conserved? Delicate process Application of solvents:ammonium

bicarbonate, sodium bicorbonate, Desogen(fungicide and antibacterial agent Temperature control Humidity control

Finally,a familiar example...

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