Elementary instruction in chemical analysis [tr. from Anleitung zur qualitativen chemischen Analyse] ed. by J.L. Bullock |
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Página 9
... flame of a spirit or gas - lamp , in a separate place free from dust and not exposed to draughts of air . If the operator has no place of the kind , he must have recourse to the much less suitable proceeding of covering the dish ; the ...
... flame of a spirit or gas - lamp , in a separate place free from dust and not exposed to draughts of air . If the operator has no place of the kind , he must have recourse to the much less suitable proceeding of covering the dish ; the ...
Página 13
... flame , or into the flame of a candle or lamp . The flame of a candle ( and equally so that of gas or of an oil lamp ) , burning under ordinary circumstances , is seen to consist of three distinct parts , as shown in Fig . 8 , viz ...
... flame , or into the flame of a candle or lamp . The flame of a candle ( and equally so that of gas or of an oil lamp ) , burning under ordinary circumstances , is seen to consist of three distinct parts , as shown in Fig . 8 , viz ...
Página 14
... flame is therefore called the reducing flame . Now the effect of blowing a fine current of air across a flame , is first to alter the shape of the latter , which , from tending upward , is now driven sideways in the direction of the ...
... flame is therefore called the reducing flame . Now the effect of blowing a fine current of air across a flame , is first to alter the shape of the latter , which , from tending upward , is now driven sideways in the direction of the ...
Página 15
... flame , a small spirit- lamp will in most cases answer the purpose . Fig . 10 . The current is produced with the cheek muscles alone , and not with the lungs . The way of doing this may be easily acquired by practising for some time to ...
... flame , a small spirit- lamp will in most cases answer the purpose . Fig . 10 . The current is produced with the cheek muscles alone , and not with the lungs . The way of doing this may be easily acquired by practising for some time to ...
Página 16
... flame . We use platinum wire , and occasionally also platinum foil , in all oxidizing processes before the blowpipe , and also when fusing substances with fluxes , with a view to try their solubility in them , and to watch the phenomena ...
... flame . We use platinum wire , and occasionally also platinum foil , in all oxidizing processes before the blowpipe , and also when fusing substances with fluxes , with a view to try their solubility in them , and to watch the phenomena ...
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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