Chemical News and Journal of Industrial Science, Tom 34Chemical news office., 1876 |
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Strona 2
... hydrochloric acid , oxalic acid , & c . The blue solu- tion thus produced is evaporated to the consistence of a syrup and mixed with strong sulphuric acid , whereby a voluminous precipitate is at once formed . After cooling , the excess ...
... hydrochloric acid , oxalic acid , & c . The blue solu- tion thus produced is evaporated to the consistence of a syrup and mixed with strong sulphuric acid , whereby a voluminous precipitate is at once formed . After cooling , the excess ...
Strona 3
... hydrochloric or sulphuric acid . Heated with a little water in a closed tube to 150 ° or 200 ° , complete solution takes place in a period varying from twelve to forty - eight hours , and sometimes more ; but with more water a slight ...
... hydrochloric or sulphuric acid . Heated with a little water in a closed tube to 150 ° or 200 ° , complete solution takes place in a period varying from twelve to forty - eight hours , and sometimes more ; but with more water a slight ...
Strona 5
... hydrochloric acid , and a solution of quinine , which yielded o ° 48 m.grm . of albu- minoid ammonia per litre , was so purified by a single filtration through 6 inches of " silicated carbon " that after filtration it yielded only o'04 ...
... hydrochloric acid , and a solution of quinine , which yielded o ° 48 m.grm . of albu- minoid ammonia per litre , was so purified by a single filtration through 6 inches of " silicated carbon " that after filtration it yielded only o'04 ...
Strona 10
... hydrochloric . The proportions he employs are 25 grms . neutral carbonate of lead , with 10 grms . neutral chromate of potassa . He digests two days in the cold , boils for half an hour , filters , washes the precipitate , and treats it ...
... hydrochloric . The proportions he employs are 25 grms . neutral carbonate of lead , with 10 grms . neutral chromate of potassa . He digests two days in the cold , boils for half an hour , filters , washes the precipitate , and treats it ...
Strona 13
... hydrochloric acid free from sul- phuric acid , iron , and arsenic . Very various proposals have therefore been made for obtaining a pure acid from the arseniferous product . Thus , Houzeau , † in order to obtain the acid free from ...
... hydrochloric acid free from sul- phuric acid , iron , and arsenic . Very various proposals have therefore been made for obtaining a pure acid from the arseniferous product . Thus , Houzeau , † in order to obtain the acid free from ...
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