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Distribution of Fluorescence Excitation of Bivalent Europium in Calcium Fluoride and of Bivalent Samarium in Calcium Sulphate

โœ Scribed by ECKSTEIN, H. PH.

Book ID
109525234
Publisher
Nature Publishing Group
Year
1938
Tongue
English
Weight
213 KB
Volume
142
Category
Article
ISSN
0028-0836

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Kinetics of dissolution and calcium sulp
Kinetics of dissolution and calcium sulphate growth on {111} faces of calcium fluoride crystals etched in sulphuric acid
โœ Dr. C. C. Desai; Dr. V. John ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 571 KB

The effect of temperature (20-100 "C) and concentration of H,SO, etching solutions on the etching behaviour of { 111) faces of calcium fluoride crystals is investigated. Whisker growth of calcium sulphate is observed. Temperature of the etchant also has an effect on their formation. The kinetics of