The Decomposition of the Fixed Alkalies and Alkaline EarthsAlembic Club, 1906 - 51 oldal |
Részletek a könyvből
1 - 5 találat összesen 13 találatból.
8. oldal
... soon observed to take place . The potash began to fuse at both its points of electrization . There was a violent ... soon as they were formed , and others remained , and were merely tarnished , and finally covered by a white film which ...
... soon observed to take place . The potash began to fuse at both its points of electrization . There was a violent ... soon as they were formed , and others remained , and were merely tarnished , and finally covered by a white film which ...
9. oldal
... soon penetrated through the body of the tube . Soda , when acted upon in the same manner as potash , exhibited an analogous result ; but the decomposition demanded greater intensity of action in the batteries , or the alkali was ...
... soon penetrated through the body of the tube . Soda , when acted upon in the same manner as potash , exhibited an analogous result ; but the decomposition demanded greater intensity of action in the batteries , or the alkali was ...
10. oldal
... found . I mentioned that the metallic lustre of the substance from potash immediately became destroyed in the atmo- sphere , and that a white crust formed upon it . This crust I soon found to be pure potash , which immediately IO Davy .
... found . I mentioned that the metallic lustre of the substance from potash immediately became destroyed in the atmo- sphere , and that a white crust formed upon it . This crust I soon found to be pure potash , which immediately IO Davy .
11. oldal
Sir Humphry Davy. I soon found to be pure potash , which immediately deliquesced , and new quantities were formed , which in their turn attracted moisture from the atmosphere till the whole globule disappeared , and assumed the form of a ...
Sir Humphry Davy. I soon found to be pure potash , which immediately deliquesced , and new quantities were formed , which in their turn attracted moisture from the atmosphere till the whole globule disappeared , and assumed the form of a ...
15. oldal
... soon absorbs its full proportion of oxygene when exposed to the air , and is wholly converted into potash . And the same body is often formed in the analytical experiments when the action of the electricity is intense , Decomposition of ...
... soon absorbs its full proportion of oxygene when exposed to the air , and is wholly converted into potash . And the same body is often formed in the analytical experiments when the action of the electricity is intense , Decomposition of ...
Más kiadások - Összes megtekintése
Gyakori szavak és kifejezések
absorbed acted action airholder alkali is formed alkaline earths amalgam ammonia apparatus appeared atmosphere Bakerian Lecture barometer barytes and strontites bases basis of potash basis of soda battery bodies boracic acid CARL WILHELM SCHEELE chemical colour combination common temperatures compound conductor contain crust cubic inches decom decomposed decomposition decomposition of water disengaged dissolved distilled electrical employed exposed to air FAHRENHEIT fixed alkalies flame fluid fused gazometer gene glass tube globule grain measures grains of mercury HUMPHRY DAVY hydrogene hydrogene gas ignition inflammable JOSEPH LOUIS GAY-LUSSAC likewise lustre metallic oxides moisture muriatic acid nearly negative surface nitrogene nitrous acid oxygene gas Phil platina wires potash and soda potash is formed potassium Price probably proportion of oxygene quantity of water rapidly Researches Chem seems similar small quantity solid solution specific gravity substance sulphuretted temperature and pressure thrown vapour of naphtha vivid volatile VOLTAIC weight
Népszerű szakaszok
9. oldal - ... basis of potash. I found that the platina was in no way connected with the result, except as the medium for exhibiting the electrical powers of decomposition ; and a substance of the same kind was produced when pieces of copper, silver, gold, plumbago, or even charcoal were employed for compleating the circuit. The phenomenon was independent of the presence of air ; I found that it took place when the alkali was in the vacuum of an exhausted receiver.
18. oldal - ... explained from its strong affinity for this substance. In sulphuric acid a white saline substance with a yellow coating, which is probably sulphate of potash surrounded by sulphur, and a gas which has the smell of sulphureous acid, and which probably is a mixture of that substance with hydrogene gas, are formed.
13. oldal - ... being naturally possessed of the negative energy, and the bases of the positive, do not remain in combination when either of them is brought into an electrical state opposite to its natural one. In the synthesis, on the contrary, the natural energies or attractions come in equilibrium with each other; and when these are in a low state at common temperatures, a slow combination is effected; but when they are exalted by heat, a rapid union is the result; and as in other like cases with the production...
35. oldal - The knowledge of the powers and effects of the etherial substances may at a future time possibly act a similar part with regard to the more refined and ingenious hypothesis of LAVOISIER ; but in the present state of our knowledge, it appears the best approximation that has been made to a perfect logic of chemistry. Whatever future changes may take place in theory, there seems however every reason to believe that the metallic bases of the alkalies, and the common metals, will stand in the same arrangement...
11. oldal - When the substances were strongly heated, confined in given portions of oxygen, a rapid combustion with a brilliant white flame was produced, and the metallic globules were found converted into a white and solid mass, which in the case of the substance from potash was found to be potash, and in the case of that from soda, soda.
17. oldal - At the moment that the globule comes into contact with the water, it burns, and moves rapidly upon the paper, as if in search of moisture, leaving behind it a deep reddish brown trace, and acting upon the paper precisely as dry caustic potash.
22. oldal - When a small quantity of the oxide of iron 28 was heated with it, to a temperature approaching its point of distillation, there was a vivid action; alkali and grey metallic particles, which dissolved with effervescence in muriatic acid, appeared. The...
11. oldal - When globules were placed in appropriate tubes containing common air or oxygen gas confined by mercury, an absorption of oxygen took place ; a crust of alkali instantly formed upon the globule ; but from the want of moisture for its solution, the process stopped, the interior being defended from the action of the gas. With the substance from soda, the appearances and effects were analogous. When the substances were strongly heated, confined in given portions of oxygen, a rapid combustion with a brilliant...
12. oldal - ... and of the respective inflammable substances which enter into union to form the fixed alkalies, will be given. It appears, then, that in these facts there is the same evidence for the decomposition of potash and soda into oxygen and two peculiar substances, as there is for the decomposition of sulphuric and phosphoric acids and the metallic oxides into oxygen and their respective combustible bases.
33. oldal - ... the largest quantity of oxygen indicated by these experiments was, for potash 17, and for soda 26 parts in 100, and the smallest 13, and 19...