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In 1904, de Lisle, realizing that such a process would likely benefit considerably from an industrial scale-up [1] and believing that there was a potentially lucrative market for radium materials in light of possible applications to medicine, began his own business venture with the creation of Sels de Radium (“Radium Salts”). [2] Sels de ...
Radium chloride is an inorganic compound with the chemical formula Ra Cl 2. It is a radium salt of hydrogen chloride. It was the first radium compound isolated in a pure state. Marie Curie and André-Louis Debierne used it in their original separation of radium from barium. The first preparation of radium metal was by the electrolysis of a ...
Radium oxide (RaO) has not been characterized well past its existence, despite oxides being common compounds for the other alkaline earth metals. Radium hydroxide (Ra(OH) 2) is the most readily soluble among the alkaline earth hydroxides and is a stronger base than its barium congener, barium hydroxide. [3]
Calcium deficiency may arise in tissues that are fed by the phloem, causing blossom end rot in watermelons, peppers and tomatoes, empty peanut pods and bitter pits in apples. In enclosed tissues, calcium deficiency can cause celery black heart and "brown heart" in greens like escarole .
The artificial solution described by Dennis Hoagland in 1933, [1] known as Hoagland solution (0), has been modified several times, mainly to add ferric chelates to keep iron effectively in solution, [6] and to optimize the composition and concentration of other trace elements, some of which are not generally credited with a function in plant nutrition. [7]
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