Observations on the rare earths : yttrium chloride and the atomic weight of yttrium . -19- quiet liquid, which did not wet the quartz but formed globules which on sol-idifying loosened from the flask and dissolved to a perfectly clear solutionin water. The chloride was allowed to cool in a stream of pure hydrogenchloride. This was displaoed by nitrogen and that in turn by air. In ordernot to admit any moist air to the flask the outlet tube (F1 ) was removed andthe oap (E1) adjusted while the dry air was still passing. This oaused aslightly inoreased pressure inside the flask and when the inlet
Observations on the rare earths : yttrium chloride and the atomic weight of yttrium . -19- quiet liquid, which did not wet the quartz but formed globules which on sol-idifying loosened from the flask and dissolved to a perfectly clear solutionin water. The chloride was allowed to cool in a stream of pure hydrogenchloride. This was displaoed by nitrogen and that in turn by air. In ordernot to admit any moist air to the flask the outlet tube (F1 ) was removed andthe oap (E1) adjusted while the dry air was still passing. This oaused aslightly inoreased pressure inside the flask and when the inlet tube (F) wasremoved and the cap (E) quickly substituted the dry air moved baok and pre-vented any moisture entering the flask. The flask was then transferred tothe balance and weighed. Ratio of Yttrium Chloride to attempts to determine thisratio have been as yet unsuccessful for reasons not fully understood. Sever-al trials were made by dissolving a weighed sample of anhydrous chloride (us-ually about 3-4 grams) prepared by the method desoribed above, in one literof w
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1912
