Heats of Immersion of Hydroxyapatities in Water

  • Hillar M. Rootare
  • Robert G. Craig

Abstract

Heats of immersion have been reported for many polar solids of metal oxides and silicates both in polar and nonpolar liquids. These heats have been determined as a function of outgassing temperatures, specific surface areas, and particle size. Usually they are made on the “bare” sample only. However, with most of the hydrophilic metal oxide surfaces, it is not always known whether the surface was “bare” (i.e. completely dehydroxylated) or had some residual hydroxyl groups still on the surface. How “bare” the surface was, would depend greatly upon the outgassing temperature and pressure at which the sample was prepared. Although the heats measured were relatively insensitive to these factors for a nonpolar liquid such as hexane on silica, titanium dioxide, or alumina1, for a polar molecule such as water on these solids, large and complex changes have been observed . Wade and Hackerman, et al. measured heats of immersion for water on TiO2 3, SiO2 4,5, and on Al2O3 6,7 as a function of the outgassing temperature and specific surface area. Whalen8 and Kiselev, et al.9,10 measured heats of immersion of different silica gel preparations and quartz.

Keywords

Water Vapor Adsorption Nonpolar Liquid Monocalcium Phosphate Hydroxyapatite Sample Polar Solid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Wade, W.H. and Hackerman, Norman, J. Phys. Chem., 66, 1823 (1962).CrossRefGoogle Scholar
  2. 2.
    Egorov, M.M., Kiselev, V.F., Krasil’Nikov, K.G. and Murina, V.V., Zh. Fiz. Khim., 33, 65 (1959).Google Scholar
  3. 3.
    Wade, W.H. and Hackerman, Norman, J. Phys. Chem., 65, l68l (1961).CrossRefGoogle Scholar
  4. 4.
    Wade, W.H., Cole, H.D., Meyer, D.E. and Hackerman, Norman, J. Phys. Chem., 65, 1968 (1961).CrossRefGoogle Scholar
  5. 5.
    Wade, W.H., Every, R.L. and Hackerman, Norman, Advances in Chemistry Series No. 33, Washington, ACS (1961).Google Scholar
  6. 6.
    Venable, R.L., Wade, W.H. and Hackerman, Norman, J. Phys. Chem., 64, 355 (1960).CrossRefGoogle Scholar
  7. 7.
    Wade, W.H. and Hackerman, Norman, J. Phys. Chem., 64, 1196 (1960).CrossRefGoogle Scholar
  8. 8.
    Whalen, J.W., Advances in Chemistry Series No. 33, Washington, ACS (1961).Google Scholar
  9. 9.
    Egarova, T.S., Zarif’yands Yu. A., Kiselev, V.F., Krasill-Nikof, K.G. and Murina, V.V., Russ. J. Phys. Chem., 36, 780 (1962).Google Scholar
  10. 10.
    Egorov, M.M. and Kiselev, V.F., Russ. J. Phys. Chem., 36, 158 (1962).Google Scholar
  11. 11.
    Holmes, H.F. and Secoy, C.H., J. Phys. Chem., 69, 151 (1965).CrossRefGoogle Scholar
  12. 12.
    Holmes, H.F., Fuller, E.L., Jr. and Secoy, C.H., J. Phys. Chem., 70, 436 (1966).CrossRefGoogle Scholar
  13. 13.
    Fuller, E.L., Jr., Holmes, H.F., Secoy, C.H. and Stuckey, J.E., J. Phys. Chem., 72, 2095 (1968).CrossRefGoogle Scholar
  14. 14.
    Holmes, H.F., Fuller, E.L., Jr. and Secoy, C.H., J. Phys. Chem., 72, 2095 (1968).CrossRefGoogle Scholar
  15. 15.
    Morimoto, Tetsuo; Shiomi, Koichi and Tanaka, Horoshi, Bull. Chem. Soc. Japan, 37, 392 (1964).CrossRefGoogle Scholar
  16. 16.
    Morimoto, Tetsuo; Nagao, Mahiko and Hirata, Miyoshi, Kolloid-Z.Z. Polym., 225, 29 (1968).CrossRefGoogle Scholar
  17. 17.
    Morimoto, Tetsuo; Nagao, Mahiko and Omori, Teiji, Bull. Chem. Soc. Japan, 42, 943 (1969).CrossRefGoogle Scholar
  18. 18.
    Morimoto, Tetsuo; Katayama, Noriko; Naons, Hiromitu and Nagao, Mahiko, Bull. Chem. Soc. Japan, 42, 1490 (1969).CrossRefGoogle Scholar
  19. 19.
    Rootare, H.M., Ph.D. Dissertation, Univ. of Mich. (1973).Google Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • Hillar M. Rootare
    • 1
  • Robert G. Craig
    • 1
  1. 1.University of Michigan School of DentistryAnn ArborUSA

Personalised recommendations