Manual of Qualitative Chemical AnalysisWiley, 1897 - 748 pagina's |
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Overige edities - Alles bekijken
Manual of Qualitative Chemical Analysis C. Remigius Fresenius,Horace Lemuel Wells Volledige weergave - 1897 |
Manual of Qualitative Chemical Analysis C. Remigius Fresenius,Horace Lemuel Wells Volledige weergave - 1897 |
Veelvoorkomende woorden en zinsdelen
acetic acid acid solution acidified added addition alcohol alkali alkali-earth metals alkali-metal alkaloids aluminium ammonia ammonium carbonate ammonium chloride ammonium sulphide analyt antimony aqueous solution arsenic acid barium chloride bismuth blue boiling calcium Chem chloric acid chromic cipitate cobalt cold color colorless compounds concentrated sulphuric acid crystalline crystals decomposed detection difficultly dilute solutions dilute sulphuric acid dioxide dissolves distillate dryness ether evaporate excess ferrous filter filtrate flame fluid formed fused glass hydro hydrochloric acid hydrogen sulphide ignition insoluble iodide iodine latter liquid magnesium mercuric mixed mixture neutral nickel nitric acid obtained oxalic acid oxide oxygen phide phosphate phosphoric acid platinum portion potassium chromate potassium cyanide potassium hydroxide powder present produces quantity reaction readily reagent residue salts separation silicic acid silver nitrate sodium carbonate sodium hydroxide solu soluble in water stannic strontium substance sulphate sulphuric acid tartaric acid tion tube volatile wash white precipitate yellow Zeitschr zinc
Populaire passages
Pagina 23 - To produce the oxidizing flame, the gas is lowered, the jet of the blowpipe pushed a little further into the flame, and the strength of the current somewhat increased. This serves to effect an intimate mixture of the air and gas, and an inner pointed, bluish cone, slightly luminous towards the apex is formed, and surrounded by a thin, pointed, light-bluish, barely visible mantle. The hottest part of the flame is at the apex of the inner cone. Difficultly fusible bodies are exposed to this part to...
Pagina 345 - Add cautiously a few drops of a concentrated solution of ferrous sulphate, so that the fluids do not mix. If nitrates are present the Junction shows at first a purple, afterwards a brown color, or if only a very minute quantity be present, a reddish color. To another portion of the solution add...
Pagina 520 - Pour distilled water into them, in sufficient quantity to cover the soil ; if the first portion of the filtrate is turbid, pour it back into the funnel.
Pagina 30 - The upper oxidizing zone at e consists of the non-luminous tip of the flame. Its action is strongest when the airholes of the lamp are fully open. It is used for the roasting away of volatile products of oxidation, and generally for all processes of oxidation where the very highest temperature is not required. 5. The lotoer reducing zone lies at 6, in the inner border of the fusing zone next to the dark cone.