Chemical News and Journal of Industrial Science, Tomy 119-120Chemical news office., 1919 |
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Strona 8
... necessary for routine purposes for the analysis of solutions , as it entails slow and careful evaporation . A far quicker method is here given based on the use of titanous chloride . The method is given briefly in " New Methods in Volu ...
... necessary for routine purposes for the analysis of solutions , as it entails slow and careful evaporation . A far quicker method is here given based on the use of titanous chloride . The method is given briefly in " New Methods in Volu ...
Strona 14
... necessary , since the probability of arriving at a true representation of facts is not necessarily strengthened by the concidence of two or more hypotheses being in mutual agreement . With a small balance of probability in favour of a ...
... necessary , since the probability of arriving at a true representation of facts is not necessarily strengthened by the concidence of two or more hypotheses being in mutual agreement . With a small balance of probability in favour of a ...
Strona 19
... necessary corrections had been made to reduce the results to standard conditions . ( To be continued ) . RARE EARTHS . II . * By L. M DENNIS and P. A. van der MEULEN . ( Concluded from p . 6. ) When a drying agent was desirable a ...
... necessary corrections had been made to reduce the results to standard conditions . ( To be continued ) . RARE EARTHS . II . * By L. M DENNIS and P. A. van der MEULEN . ( Concluded from p . 6. ) When a drying agent was desirable a ...
Strona 24
... necessary to remove the CrO4 by adding 10 cc . 2N.BaCl2 to the solution slightly acid with acetic acid . The filtrate is then tested for borate in the usual manner . 2. A " prepared solution " is one which contains the acids in the form ...
... necessary to remove the CrO4 by adding 10 cc . 2N.BaCl2 to the solution slightly acid with acetic acid . The filtrate is then tested for borate in the usual manner . 2. A " prepared solution " is one which contains the acids in the form ...
Strona 25
... necessary . Cool filtrate , add 2.5 cc . 25 per cent NaOH and 1.5 cc . 2N CuSO4 . Shake vigorously for one min . and filter immediately on a previously prs- pared filter . To the clear filtrate add 2 cc . concentrated NH4OH . A blue ...
... necessary . Cool filtrate , add 2.5 cc . 25 per cent NaOH and 1.5 cc . 2N CuSO4 . Shake vigorously for one min . and filter immediately on a previously prs- pared filter . To the clear filtrate add 2 cc . concentrated NH4OH . A blue ...
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