Calorimetric Analysis of Commercial and Dental Waxes

Abstract

Calorimetric analysis was used to determine heats of transition and fusion of waxes between 0 and 100 C. In general, hydrocarbon waxes had higher total heats of transition than did ester waxes. Calorimetric measurements on binary mixtures showed that carnauba and beeswax interacted with paraffin, the former having the greater effect.

Get full access to this article

View all access options for this article.

References

Kawasaki, S. ; Komizu, H. ; and Uchida, T. : The Phase Changes of Commercial Paraffin Waxes by Differential Thermal Analysis, Kogyo Kagaku Zasshi 69:1315-1319, 1966 .

Barnby, D.S. ; Bostwick, L.G. ; and Hus-Ton , J.A. , JR. : Some studies on the Physics of Paraffin Wax and Wax/Polymer Systems, Proc 6th World Petrol Cong 6:161-178, 1963.

Mazee, W.M. : Properties of Hydrocarbons Having More Than Twenty Carbon Atoms, Rec Tran Chemique, Pays Bas 67:197-213, 1948.

Broadhurst, M.G. : An Analysis of the Solid Phase Behavior of the Normal Paraffins, J Res Nat Bur Std 66A:241-249, 1962.

Craig, R.G. ; Powers, J.M. ; and Peyton, F.A. : Differential Thermal Analysis of Commercial and Dental Waxes, J Dent Res 46:1090-1097, 1967 .

Guenther, W.C. : Analysis of Variance. Englewood Cliffs, N.J.: Prentice-Hall, 1966, pp 99-141.

Duncan, D.B. : Multiple Range and Multiple F Test, Biometrics 11:1-42, 1955.

Snedecor, G.W. , and Cochran, W.G. : Statistical Methods, 6th ed, Ames, Iowa: Iowa State University Press, 1967, pp 447-471.

Craig, R.G. ; Eick, J.D. ; and Peyton, F.A. : Flow of Binary and Tertiary Mixtures of Waxes, J Dent Res 45:397-403, 1966.