Chemical News and Journal of Industrial Science, Tomy 5-6Chemical news office., 1862 |
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Strona 97
... separated from each other by means of picric acid . It is a familiar fact that when several salts are present in one ... separated by ether in which picrate of diethylamine is extremely and the other picrates very sparingly soluble . As ...
... separated from each other by means of picric acid . It is a familiar fact that when several salts are present in one ... separated by ether in which picrate of diethylamine is extremely and the other picrates very sparingly soluble . As ...
Strona 181
... separated by filtering . After separation of the base , care must always be taken to search in it for tungstic acid , whose presence is easily recognised by the blue colour produced by the addition of a small quantity of metallic zinc ...
... separated by filtering . After separation of the base , care must always be taken to search in it for tungstic acid , whose presence is easily recognised by the blue colour produced by the addition of a small quantity of metallic zinc ...
Strona 248
... separated from the iron by sulphuretted hydrogen , collecting the precipitated sulphide as usual , and weighing in the form of binoxide of tin . The reduced antimony should be purified from traces of iron by digesting with cold dilute ...
... separated from the iron by sulphuretted hydrogen , collecting the precipitated sulphide as usual , and weighing in the form of binoxide of tin . The reduced antimony should be purified from traces of iron by digesting with cold dilute ...
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acetic acetic acid action alcohol alkaline alumina ammonia analysis aniline apparatus appears atmosphere beautiful blue body boiling bromine brown carbonic acid cent charcoal chemical Chemistry chemists chloride coal colouring matter composition compound containing copper crystallised crystals dilute dissolved distilled electric employed Ether sol ethylamine evaporated experiments filter flame flask gases glass grains grammes heat hydrochloric acid hydrogen Improvements insoluble iodine iron lecture light lime lines liquid London manufacture metal method mineral minutes mixed mixture nitrate nitric acid nitrogen observed obtained oxalic oxalic acid oxide oxygen paper passed phosphoric acid plants platinum portion potash potassium precipitate prepared present prism produced Professor proportion pure rays reaction residue rubidium salt silica silver soda sodium soil soluble solution specimens spectra spectrum strychnia substance sulphate sulphide sulphuric acid surface tartaric acid temperature thallium tion tube vapour yellow zinc