A System of Instruction in Qualitative Chemical AnalysisJ. Churchill, 1859 - 310 páginas |
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Página 7
... filter . The paper selected for filters must be as free as possible from inorganic substances , especially such as are dissolved by acids , e.g. , sesquioxide of iron and lime . The common filtering paper of commerce seldom comes up to ...
... filter . The paper selected for filters must be as free as possible from inorganic substances , especially such as are dissolved by acids , e.g. , sesquioxide of iron and lime . The common filtering paper of commerce seldom comes up to ...
Página 8
... filter is usually effected by means of a washing bottle , such as is shown in Fig . 2 . Fig . 2 . Fig . 3 . This washing bottle consists of a flask closed with a perforated cork , into which a small glass tube is fitted , with the outer ...
... filter is usually effected by means of a washing bottle , such as is shown in Fig . 2 . Fig . 2 . Fig . 3 . This washing bottle consists of a flask closed with a perforated cork , into which a small glass tube is fitted , with the outer ...
Página 9
... filter paper used for the purpose , the sesqui- oxide of iron , lime , & c . , contained in it , would dissolve in ... filtering paper , over a charcoal fire or gas ; or also in retorts . Evaporating processes at 212 ° are conducted a ...
... filter paper used for the purpose , the sesqui- oxide of iron , lime , & c . , contained in it , would dissolve in ... filtering paper , over a charcoal fire or gas ; or also in retorts . Evaporating processes at 212 ° are conducted a ...
Página 35
... filter off a small portion , and try whether the filtrate still causes effervescence in hydrochloric acid . If this is the case , the boiling must be continued , and , if necessary , some more milk of lime added to the fluid . When the ...
... filter off a small portion , and try whether the filtrate still causes effervescence in hydrochloric acid . If this is the case , the boiling must be continued , and , if necessary , some more milk of lime added to the fluid . When the ...
Página 38
... filter off hot let the filtrate cool in a well - covered vessel . Pour off the mother liquor , which , together with the residue left from the boiling of the sulphide of barium , may be used for the preparation of chloride of barium ...
... filter off hot let the filtrate cool in a well - covered vessel . Pour off the mother liquor , which , together with the residue left from the boiling of the sulphide of barium , may be used for the preparation of chloride of barium ...
Outras edições - Ver tudo
A System of Instruction in Qualitative Chemical Analysis C. Remigius Fresenius Visualização integral - 1859 |
A System of Instruction in Qualitative Chemical Analysis C. Remigius Fresenius Visualização integral - 1859 |
A System of Instruction in Qualitative Chemical Analysis C. Remigius Fresenius Pré-visualização limitada - 2022 |
Palavras e frases frequentes
acetic acid acid solution addition alcohol alkaline earths alumina ammonia antimony arsenic arsenious acid baryta bismuth blowpipe boiling carbonate of soda carbonic acid charcoal chloric acid chloride chloride of ammonium chloride of barium color colorless compounds contains copper crucible crystals cyanide cyanide of potassium decomposed decomposition detection difficultly dilute solutions dissolves readily dryness evaporate examination excess ferrocyanide filter filtrate flame fluid heat hydrate hydrochloric acid hydrogen hydrosulphuric acid ignition insoluble iodine latter lead lime magnesia manganese metallic mixed mixture neutral nickel nitrate of silver nitric acid oxalic acid oxide phosphoric acid platinum portion powder PRECIPITATE IS FORMED protoxide of iron quantity reaction reagent redissolves residue separation sesquioxide sesquioxide of chromium sesquioxide of iron silicic acid solu soluble in water solution of soda solutions of salts strontia substance sulphate sulphide of ammonium sulphuric acid tartaric acid teroxide tersulphide tint tion tube undissolved volatile wash whilst white precipitate yellow
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