Chemical News and Journal of Physical Science, Tom 83Chemical news office., 1901 |
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Strona 52
... quantity of bromine is added in such a manner that this metalloid will be in excess ; the free bromine is then estimated by causing it to act on iodide of potassium , and then measuring the quantity of iodine displaced by a titrated ...
... quantity of bromine is added in such a manner that this metalloid will be in excess ; the free bromine is then estimated by causing it to act on iodide of potassium , and then measuring the quantity of iodine displaced by a titrated ...
Strona 76
... quantity of permanganate apparently being formed , but the production of the pink colour cannot be effected with certainty . Recently , I dis- covered that the presence of a trace of a silver salt has a remarkable effect on persulphate ...
... quantity of permanganate apparently being formed , but the production of the pink colour cannot be effected with certainty . Recently , I dis- covered that the presence of a trace of a silver salt has a remarkable effect on persulphate ...
Strona 103
... quantity of ethyl butyrate was added and the tubes heated for five minutes at 40 ° C. , and then titrated . The following results were obtained : — Quantity of ethyl butyrate N / 20 KOH Quantity of ethyl required . butyrate hydrolysed ...
... quantity of ethyl butyrate was added and the tubes heated for five minutes at 40 ° C. , and then titrated . The following results were obtained : — Quantity of ethyl butyrate N / 20 KOH Quantity of ethyl required . butyrate hydrolysed ...
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