Chemical News and Journal of Physical Science, Tom 114Chemical news office., 1916 |
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Strona 2
... Soluble boron as boric acid in soil on which lettuce was grown . matter . Per cent . The distillate was redistilled and a fraction collected between 90. Beets ( dry basis ) . d Tops . Roots . Tops . Roots . Series No. Treatment of manure ...
... Soluble boron as boric acid in soil on which lettuce was grown . matter . Per cent . The distillate was redistilled and a fraction collected between 90. Beets ( dry basis ) . d Tops . Roots . Tops . Roots . Series No. Treatment of manure ...
Strona 3
... soluble in weak hydro- chloric acid , not the total boron , was determined . Fifty grms . of soil were shaken with 200 cc . of a solution of hydrochloric acid ( 1:20 ) for one hour . This was filtered , and 100 cc . of the filtrate made ...
... soluble in weak hydro- chloric acid , not the total boron , was determined . Fifty grms . of soil were shaken with 200 cc . of a solution of hydrochloric acid ( 1:20 ) for one hour . This was filtered , and 100 cc . of the filtrate made ...
Strona 15
... soluble and the most soluble fractions frequently were rejected , the least soluble fraction to eliminate samarium , gadolinium , & c . , the most soluble to remove praseodymium , cerium , and lanthanum , for Demarçay has shown that the ...
... soluble and the most soluble fractions frequently were rejected , the least soluble fraction to eliminate samarium , gadolinium , & c . , the most soluble to remove praseodymium , cerium , and lanthanum , for Demarçay has shown that the ...
Strona 16
... soluble fractions contained small amounts of samarium and the more soluble ones praseodymium . In order to deter- mine the proportions of these impurities , to a solution of a 2 grm . portion of the oxide of Fraction 2605-6 , which was ...
... soluble fractions contained small amounts of samarium and the more soluble ones praseodymium . In order to deter- mine the proportions of these impurities , to a solution of a 2 grm . portion of the oxide of Fraction 2605-6 , which was ...
Strona 18
... solubility of silver chloride ( Richards and Willard , Journ . Am . Chem . Soc . , 1910 , xxxii . , 32 ) , and the clear solution was tested in a nephelometer for excess of chloride or silver . The estimated deficiency of either was ...
... solubility of silver chloride ( Richards and Willard , Journ . Am . Chem . Soc . , 1910 , xxxii . , 32 ) , and the clear solution was tested in a nephelometer for excess of chloride or silver . The estimated deficiency of either was ...
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