Further Researches Concerning Atomic Weights And Potassium Silver Chlorine Br
Further Researches Concerning Atomic Weights And Potassium Silver Chlorine Br
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It was necessary to prove that this salt can be easily and certainly purified by recrystallization, and especially to show that the other alkali metals can thus be separated. The following tests accomplished this proof.
A saturated solution of potassic oxalate containing a purposely added admixture of 10 per cent of sodic oxalate was crystallized and the crystals drained centrifugally. By the flame test, a pronounced difference was noticeable between the amount of sodium present in the mother l...iquor and that in the crystals. A second recrystallization and whirling was still more satisfactory; the crystals gave no sodium test to the eye, while !Richards and Wells, Proc. Am. Acad. , 41, 435 (1906) ; Zeit. Phys. Chem. , 56, 348 (1906).
THE PREPARATION OF MATERIALS. 9 the mother liquors gave a distinct yellow. This indicates that sodium has a decided tendency into the mother liquors, and hence can be sepa- rated by fractional crystallization.
Again, 1 per cent of lithium salt was added to potassic oxalate with similar outcome.
What to read after Further Researches Concerning Atomic Weights And Potassium Silver Chlorine Br?
You can find similar books in the "Read Also" column, or choose other free books by Theodore William Richards to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It was necessary to prove that this salt can be easily and certainly purified by recrystallization, and especially to show that the other alkali metals can thus be separated. The following tests accomplished this proof.
A saturated solution of potassic oxalate containing a purposely added admixture of 10 per cent of sodic oxalate was crystallized and the crystals drained centrifugally. By the flame test, a pronounced difference was noticeable between the amount of sodium present in the mother l...iquor and that in the crystals. A second recrystallization and whirling was still more satisfactory; the crystals gave no sodium test to the eye, while !Richards and Wells, Proc. Am. Acad. , 41, 435 (1906) ; Zeit. Phys. Chem. , 56, 348 (1906).
THE PREPARATION OF MATERIALS. 9 the mother liquors gave a distinct yellow. This indicates that sodium has a decided tendency into the mother liquors, and hence can be sepa- rated by fractional crystallization.
Again, 1 per cent of lithium salt was added to potassic oxalate with similar outcome.
What to read after Further Researches Concerning Atomic Weights And Potassium Silver Chlorine Br?
You can find similar books in the "Read Also" column, or choose other free books by Theodore William Richards to read onlineMoreLess
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