Instruction in chemical analysis, quantitative [tr. and] ed. by J.L. Bullock |
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Página 36
... red hot , suddenly plunged into cold water , and subsequently again ignited , if necessary . This process is of course applicable only to minerals which lose no essential constituent at a red heat , and are perfectly insoluble in water ...
... red hot , suddenly plunged into cold water , and subsequently again ignited , if necessary . This process is of course applicable only to minerals which lose no essential constituent at a red heat , and are perfectly insoluble in water ...
Página 38
... red heat , or at 212 ° F. , or in dried air , or even simply in contact with the atmosphere . These data will serve to guide us in the selection of the process of desiccation best suited to the substance under examination . * The ...
... red heat , or at 212 ° F. , or in dried air , or even simply in contact with the atmosphere . These data will serve to guide us in the selection of the process of desiccation best suited to the substance under examination . * The ...
Página 44
... temperature ; but which are decomposed by a red heat . The desiccation of such substances is effected in the air - bath or oil - bath , or the drying - disk is resorted to , the temperature being raised to 230 ° -248 ° F. , and still ...
... temperature ; but which are decomposed by a red heat . The desiccation of such substances is effected in the air - bath or oil - bath , or the drying - disk is resorted to , the temperature being raised to 230 ° -248 ° F. , and still ...
Página 48
... heat is made to act upon the centre of the plate . f . Substances which suffer no alteration at a red heat , such as sulphate of baryta , potash , & c . , are very readily freed from moisture . They need simply be heated in a platinum ...
... heat is made to act upon the centre of the plate . f . Substances which suffer no alteration at a red heat , such as sulphate of baryta , potash , & c . , are very readily freed from moisture . They need simply be heated in a platinum ...
Página 50
... red heat without suffering decom- position ; or whether , on the contrary , they give off other volatile sub- stances , besides water , even at a lower temperature . The correct knowledge of the constitution of a substance depends fre ...
... red heat without suffering decom- position ; or whether , on the contrary , they give off other volatile sub- stances , besides water , even at a lower temperature . The correct knowledge of the constitution of a substance depends fre ...
Palavras e frases frequentes
accurate results acid solution alkaline alumina ammonia analysis antimony arsenic acid baryta beaker bichloride of platinum binoxide boiling carbonate of soda carbonic acid Chem chloride of ammonium chloride of potassium chloride of sodium chromate chromic acid cipitate color compounds contains converted cubic centimetres decantation decomposed decomposition Determination dilute dish dissolves dried evaporation excess filter filtrate flask fluid fused glass grammes hydrated hydrochloric acid ignition insoluble in water iodide iodine latter lime magnesia manganese mercury metallic method mixed mixture nickel nitrate nitric acid operation oxalic acid oxide oxide of lead permanganate of potassa phosphate phosphoric acid platinum and chloride porcelain portion prakt precipitate present pure quantity readily red heat residue salt separation sesquioxide of chromium sesquioxide of iron silicic acid soluble solution of chloride strontia substance sulphate sulphide of ammonium sulphuretted hydrogen sulphuric acid teroxide tube volatile volumetrical wash weighed zinc
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