Chemical Lecture Experiments: Non-metallic ElementsLongmans, Green, 1892 - 323 páginas |
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Página 1
... plate . The plate should be instantly covered by a glass bell - jar when potassium is employed , as the molten globule of potassium hydrate which remains floating , in a spheroidal state , upon the water for a few seconds , will , as it ...
... plate . The plate should be instantly covered by a glass bell - jar when potassium is employed , as the molten globule of potassium hydrate which remains floating , in a spheroidal state , upon the water for a few seconds , will , as it ...
Página 14
... plate ) of water , and filled with hydrogen by sending a stream of the gas in by means of the short tube at the top , which is then stopped . On raising the bell - jar , and removing the small stopper from the glass tube , and applying ...
... plate ) of water , and filled with hydrogen by sending a stream of the gas in by means of the short tube at the top , which is then stopped . On raising the bell - jar , and removing the small stopper from the glass tube , and applying ...
Página 18
... plate of palla- dium as the negative elec- trode . A narrow vertical glass cell may be employed , and an image of it ... plates ; on. 18 CHEMICAL LECTURE EXPERIMENTS.
... plate of palla- dium as the negative elec- trode . A narrow vertical glass cell may be employed , and an image of it ... plates ; on. 18 CHEMICAL LECTURE EXPERIMENTS.
Página 19
... plates ; on replacing the negative plate by a similar plate of palladium , and again passing the current , gas will be evolved only from the positive electrode , the hydrogen being entirely absorbed by the palladium . The palladium ...
... plates ; on replacing the negative plate by a similar plate of palladium , and again passing the current , gas will be evolved only from the positive electrode , the hydrogen being entirely absorbed by the palladium . The palladium ...
Página 29
... plate . After the lapse of some time the ozone which is formed begins to act upon the phosphorus , and so diminish in quantity , until at last there will be insufficient left to give the test ; it is necessary , therefore , to avoid ...
... plate . After the lapse of some time the ozone which is formed begins to act upon the phosphorus , and so diminish in quantity , until at last there will be insufficient left to give the test ; it is necessary , therefore , to avoid ...
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Términos y frases comunes
allowed ammonia apparatus B.Sc beaker bell-jar blown bromine bubble bulb burning caoutchouc tube carbon dioxide carbon disulphide centimetres long charcoal Chemistry chlorate chlorine coal-gas cock colour combustion condensed containing convenient cooled copper cork cork carrying Crown 8vo cubic centimetres cylinder delivery tube Diagrams dilute dipping dish dropping funnel drops electric Elementary ether evolved experiment filled fitted fragment freezing mixture funnel gases glass tube grams heated hydrobromic acid hydrochloric acid ignited Illustrations inflamed introduced iodide iodine lamp Liquefaction of Gases liquid magnesium means mercury metal metres millimetres nitric oxide nitrogen obtained oxygen paper passed peroxide phosphorus piece of caoutchouc piece of glass placed plate platinum wire potassium potassium chlorate poured pressure salt screen seen short piece show the action shown small flask small quantity sodium solution stopcock stoppered stream sulphur dioxide sulphuretted hydrogen sulphuric acid temperature tion vapour vessel volume Woodcuts Woulf's bottle
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