| Autor: |
M. Koishi, T. Matsuno |
| Rok vydání: |
1989 |
| Předmět: |
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| Zdroj: |
Journal of Crystal Growth. 94:798-802 |
| ISSN: |
0022-0248 |
| DOI: |
10.1016/0022-0248(89)90106-1 |
| Popis: |
The spherulites of SrSO 3 and BaSO 3 were synthesized in agar-agar gels (0–40°C). The reactants are sodium sulfite and the chloride of the respective metals. Each spherulite consists of fibrous crystals which are arranged minutely in a radial manner from the center. A linear relation was recognized between (mean diameter) 2 and reaction time in the same manner as the CaSO 3 · 0.5H 2 O spherulite reported in our previous paper. The slopes of the lines, namely the growth rates of the spherulites, were greater in the order of calcium sulfite > strontium sulfite > barium sulfite. The ratio of (mean diameter) 2 /time was dependent upon the concentration of the agar-agar gel (0.5%–2.0%) and the reaction temperature (0–40°C); the ratios decreased linearly with an increase of the gel concentration and increased with an increase of temperature. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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