JAIC 1986, Volume 25, Number 2, Article 1 (pp. 65 to 72)
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Journal of the American Institute for Conservation
JAIC 1986, Volume 25, Number 2, Article 1 (pp. 65 to 72)

DETERMINATION OF THE SPECIFIC RATE CONSTANT FOR THE LOSS OF A YELLOW INTERMEDIATE DURING THE FADING OF ALIZARIN LAKE

Robert L. Feller, Ruth M. Johnston-Feller, & Catherine Bailie




REFERENCES

See, for example, R. G.Kuehni, Computer Colorant Formulation, Lexington: Lexington Books, D. C. Heath and Company, 1975.

R.Johnston-Feller, R. L.Feller, C. W.Bailie and M.Curran, “The Kinetics of Fading: Opaque Paint Films Pigmented with Alizarin Lake and Titanium Dioxide,” J. American Institute for Conservation, 23 (1984): 114–129. Since this date a more extensive treatment of the subject has been published: R. M. Johnston-Feller, “Reflections on the Phenomenon of Fading,” J. Coatings Technology, 58, No. 736 (1986): 32–50.

R. L.Feller, “Studies on Photochemical Deterioration,” Report to the ICOM Committee on Conservation, 4th Triennial Meeting, Venice, 1975, Paper 75/19/4.

In our first presentation of these concepts (Reference 2), we used the symbol C (for concentration) to describe the first-order rate equations, but the different set of symbols A, Y, and C seem particularly appropriate here to represent the concentration of the three chemical components expressed in equation iii. The authors also consider that the minus sign is an essential part of the specific rate constant, although this is not the usual convention found in textbooks of physical chemistry. Nonetheless, equations ii and v are the form in which the equations are usually found.


Copyright 1986 American Institute of Historic and Artistic Works