Hand-book of Mineral AnalysisH.C. Baird, 1871 - Broj stranica: 315 |
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Stranica 16
... mass by dilute hydrochloric acid , and the filtered solution evaporated to dryness ; the mixed chlorides are heated to dull redness in a covered platinum crucible and weighed . They are then dissolved in a little water , and the solu ...
... mass by dilute hydrochloric acid , and the filtered solution evaporated to dryness ; the mixed chlorides are heated to dull redness in a covered platinum crucible and weighed . They are then dissolved in a little water , and the solu ...
Stranica 17
... mass strongly ignited in a covered platinum crucible ; in order to insure the complete decomposition of the chloride of platinum , the ignition should be repeated , with addi- tion of a few crystals of oxalic acid . From the cooled mass ...
... mass strongly ignited in a covered platinum crucible ; in order to insure the complete decomposition of the chloride of platinum , the ignition should be repeated , with addi- tion of a few crystals of oxalic acid . From the cooled mass ...
Stranica 24
... mass is digested with water , the residual magnesia washed , ignited and weighed . The alkaline solution is neutralized with acetic acid , and the phosphoric acid precipitated by acetate of lead . The precipitate is filtered off ...
... mass is digested with water , the residual magnesia washed , ignited and weighed . The alkaline solution is neutralized with acetic acid , and the phosphoric acid precipitated by acetate of lead . The precipitate is filtered off ...
Stranica 25
... mass gently ignited in a platinum crucible until the latter are volatilized . The magnesia and alkalies are then separated according to one of the following methods : - I. The mass is moistened with a concentrated solu- tion of ...
... mass gently ignited in a platinum crucible until the latter are volatilized . The magnesia and alkalies are then separated according to one of the following methods : - I. The mass is moistened with a concentrated solu- tion of ...
Stranica 28
... mass mixed with twice its volume of absolute alcohol , which dissolves the phosphoric acid . The mixture is filtered , and the sulphates washed with alcohol . From these the sulphate of magnesia and a part of the sulphate of lime are ...
... mass mixed with twice its volume of absolute alcohol , which dissolves the phosphoric acid . The mixture is filtered , and the sulphates washed with alcohol . From these the sulphate of magnesia and a part of the sulphate of lime are ...
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Uobičajeni izrazi i fraze
acetate acidified added alcohol alkaline alumina ammonia antimony apparatus arsenic acid baryta boiling carbonate of ammonia carbonate of potassa carbonate of soda carbonic acid chlorate of potassa chloric acid chloride of ammonium chloride of barium chloride of sodium cipitated cobalt color concentrated sulphuric acid contains converted cool copper crucible crystals cyanide decomposed determined digested distilled evaporated to dryness excess expelled extracted filtrate flask fluoride fused glass grms guano heated to redness hot water hydrate hydro hydrochloric acid indium insoluble lead liquid magnesia manganese mass metallic mineral mixed mixture moistened neutralized nickel nitrate of silver nitre nitric acid obtained oxalic acid oxide phosphate phosphoric acid platinum crucible porcelain portion powdered protoxide pure residue salt saturated selenium separated sesquioxide sesquioxide of iron silica silicic acid small quantity soluble solution filtered substance sulphate sulphide of ammonium sulphuretted hydrogen sulphuric acid thallium tion titanic acid treated tube volatilized washed yellow zinc
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