Elementary instruction in chemical analysis [tr. from Anleitung zur qualitativen chemischen Analyse] ed. by J.L. Bullock |
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Página 5
... crystals , are the more regular , and consequently the more perfect , the more slowly the operation is carried on , we always connect with the term " crystal- lization " the accessory idea of a slow separation - of a gradual conversion ...
... crystals , are the more regular , and consequently the more perfect , the more slowly the operation is carried on , we always connect with the term " crystal- lization " the accessory idea of a slow separation - of a gradual conversion ...
Página 9
... crystal- lization of the salt ; we resort to this process also for the purpose of re- moving the whole of the water of the menstruum from the solution of a non - crystallizable substance , so as to obtain the latter in a solid form ...
... crystal- lization of the salt ; we resort to this process also for the purpose of re- moving the whole of the water of the menstruum from the solution of a non - crystallizable substance , so as to obtain the latter in a solid form ...
Página 31
... crystals of sulphate of protoxide of iron , which is apt to interfere injuriously with subsequent processes of evolution of gas . For larger laboratories , or for chemists , having to operate often and largely with hydrosulphuric acid ...
... crystals of sulphate of protoxide of iron , which is apt to interfere injuriously with subsequent processes of evolution of gas . For larger laboratories , or for chemists , having to operate often and largely with hydrosulphuric acid ...
Página 36
... crystals of baryta ( § 32 ) by heating with water , and add to the solution pure sulphate of potassa , until a portion of the filtered fluid , acidified with hydrochloric acid and diluted , no longer gives a precipitate on addition of a ...
... crystals of baryta ( § 32 ) by heating with water , and add to the solution pure sulphate of potassa , until a portion of the filtered fluid , acidified with hydrochloric acid and diluted , no longer gives a precipitate on addition of a ...
Página 38
... crystals with just sufficient water to dissolve them ; keep boiling ( taking care to replace the evaporated water ) ; add finely triturated and sifted copper scales in small portions at a time , until a filtered sample of the fluid ...
... crystals with just sufficient water to dissolve them ; keep boiling ( taking care to replace the evaporated water ) ; add finely triturated and sifted copper scales in small portions at a time , until a filtered sample of the fluid ...
Palavras e frases frequentes
acetic acid acid solution addition alcohol alkaline earths alkaloids alumina ammonia antimony arsenic arsenious acid baryta bismuth blowpipe boiling carbonate of soda carbonic acid chloric acid chloride of ammonium chloride of barium cloth cobalt color colorless compounds contains copper crystalline crystals cyanide cyanide of potassium decomposed decomposition detection difficultly dilute solutions dissolves readily dryness ether evaporate examination excess ferrocyanide filter filtrate flame fluid heat hydrate hydrochloric acid hydrosulphuric acid ignition insoluble latter lead lime magnesia mercury metallic mixed mixture neutral nickel nitrate of silver nitric acid oxalic acid oxide phosphoric acid platinum portion powder PRECIPITATE IS FORMED quantity quina reaction reagent redissolves residue separation sesquioxide sesquioxide of chromium sesquioxide of iron silicic acid soluble in water solution of soda solutions of salts strontia strychnia suboxide substance sulphate sulphide sulphide of ammonium sulphuric acid tartaric acid teroxide tersulphide tint tion tube undissolved wash whilst white precipitate yellow zinc
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