Chemical News and Journal of Industrial Science, Tom 34Chemical news office., 1876 |
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Strona 2
... added , and the sulphuric acid precipitated as barium sulphate . This precipitate passes through the filter even after long - continued digestion in the water- bath , but this difficulty can be overcome by moistening the paper with ...
... added , and the sulphuric acid precipitated as barium sulphate . This precipitate passes through the filter even after long - continued digestion in the water- bath , but this difficulty can be overcome by moistening the paper with ...
Strona 3
... added until a permanent precipitate appears , and the mixture slowly heated to 75 ° , when the formation of gold ... adding a solution of ammo- CHEMICAL NEWS , July 7 , 1876 . 5 Encouraged.
... added until a permanent precipitate appears , and the mixture slowly heated to 75 ° , when the formation of gold ... adding a solution of ammo- CHEMICAL NEWS , July 7 , 1876 . 5 Encouraged.
Strona 4
... added ; the preci- pitated lead vanadate was washed with water , and decom- posed with sulphuric acid and alcohol : upon evaporating the solution of vanadic acid and igniting the residue , the vanadium pentoxide was left in a pure state ...
... added ; the preci- pitated lead vanadate was washed with water , and decom- posed with sulphuric acid and alcohol : upon evaporating the solution of vanadic acid and igniting the residue , the vanadium pentoxide was left in a pure state ...
Strona 10
... adding the acid slowly and stirring , and then neutralising with a dilute solution of soda , there is formed a mixture of sulphate and of basic chromate of lead , the colour passing into a fiery vermillion . The quantity obtained is ...
... adding the acid slowly and stirring , and then neutralising with a dilute solution of soda , there is formed a mixture of sulphate and of basic chromate of lead , the colour passing into a fiery vermillion . The quantity obtained is ...
Strona 12
... added one H of the hydride or chloride doubles the entire volume . If chemists can distinguish between the atomic volumes ( solid ) of O = 12 : 2 in acetyl , and O = 7.8 in alcohol , surely they may be able to appreciate the difference ...
... added one H of the hydride or chloride doubles the entire volume . If chemists can distinguish between the atomic volumes ( solid ) of O = 12 : 2 in acetyl , and O = 7.8 in alcohol , surely they may be able to appreciate the difference ...
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