Chemical News and Journal of Industrial Science, Tomy 99-100Chemical news office., 1909 |
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Strona 1
... sulphuric acid mixed with sulphurous acid , the whole acids were precipitated from the alkaline solution with boiled , and the acids filtered , washed , and then strongly ignited , with addition of ammonium carbonate , to a constant ...
... sulphuric acid mixed with sulphurous acid , the whole acids were precipitated from the alkaline solution with boiled , and the acids filtered , washed , and then strongly ignited , with addition of ammonium carbonate , to a constant ...
Strona 3
... sulphuric acid always contain basic matters , and especially iron and zirconia ; even a second fusion in many cases by no means removes all these im- purities . One must not be misled by the white appearance of the acids ; they may be ...
... sulphuric acid always contain basic matters , and especially iron and zirconia ; even a second fusion in many cases by no means removes all these im- purities . One must not be misled by the white appearance of the acids ; they may be ...
Strona 7
... sulphuric acid , and the oxidation is allowed to go to completion , a process which seldom requires more than five minutes . If no particles of the yellow precipitate settle out on standing a minute , the oxidation may be considered ...
... sulphuric acid , and the oxidation is allowed to go to completion , a process which seldom requires more than five minutes . If no particles of the yellow precipitate settle out on standing a minute , the oxidation may be considered ...
Strona 20
... sulphuric acid , the former into 1 : 3 - naphthylenediamine- A , ccviii . , 475 ) , it now appears certain that neither p - benzo- 2 - carboxylic acid ( III . ) and the latter into 1 : 3 - naphthylene- quinone nor quinol has a fixed and ...
... sulphuric acid , the former into 1 : 3 - naphthylenediamine- A , ccviii . , 475 ) , it now appears certain that neither p - benzo- 2 - carboxylic acid ( III . ) and the latter into 1 : 3 - naphthylene- quinone nor quinol has a fixed and ...
Strona 23
... sulphuric acid , and aqua regia . It is as hypobromous acid and in the free state . When such not readily oxidised , and is unaltered in air even at a red solutions are heated in presence of a concentrated alkali , heat . Mixtures of ...
... sulphuric acid , and aqua regia . It is as hypobromous acid and in the free state . When such not readily oxidised , and is unaltered in air even at a red solutions are heated in presence of a concentrated alkali , heat . Mixtures of ...
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