The Retardation of Enamel Dissolution Rates by Adsorbed Long-Chain Ammonium Chlorides
| Autor: | T. J. Roseman, John J. Hefferren, B. Hodes, William I. Higuchi |
|---|---|
| Rok vydání: | 1969 |
| Předmět: |
0301 basic medicine
Inorganic chemistry Protonation Cetylpyridinium chloride Ammonium Chloride Apatite Surface-Active Agents 03 medical and health sciences chemistry.chemical_compound Dental Enamel Solubility 0302 clinical medicine Adsorption Pulmonary surfactant Humans Ammonium General Dentistry Dissolution Enamel paint Chemistry 030206 dentistry 030104 developmental biology Solubility visual_art visual_art.visual_art_medium Hydroxyapatites |
| Zdroj: | Journal of Dental Research. 48:509-520 |
| ISSN: | 1544-0591 0022-0345 |
| DOI: | 10.1177/00220345690480040301 |
| Popis: | Dissolution rate studies were conducted with hydroxyapatite and enamel in the presence of adsorbed surfactants. In general, the ability of the surfactant to retard the dissolution rate was directly related to its ability to adsorb onto apatite. Cetylpyridinium chloride adsorbed poorly onto apatite, and its influence on the dissolution rate was marginal. The long-chain protonated amines were much more effective as rate retarding agents, sometimes of the order of 1,000-, to 10,000-fold. These compounds were also found to adsorb much more strongly. A systematic dependence of the dissolution rate on chain length was found for these amines. |
| Databáze: | OpenAIRE |
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