The Philosophical Magazine: Or Annals of Chemistry, Mathematics, Astronomy, Natural History and General Science, Bind 4Richard Taylor and Company, 1828 |
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Resultater 1-5 af 42
Side 23
... boil during the space of a few minutes ; and the gas is by the same means expelled from the interior of the phial , into which on cooling the atmospheric air is admitted by the tube for introducing the sulphuric acid . The carbonic acid ...
... boil during the space of a few minutes ; and the gas is by the same means expelled from the interior of the phial , into which on cooling the atmospheric air is admitted by the tube for introducing the sulphuric acid . The carbonic acid ...
Side 33
... boiling the red oxide with an excess of very dilute sul- phuric acid ( in the proportion , for example , of two measured drachms of strong acid to five ounces of water ) , a colourless solution of the protosulphate is obtained ; while a ...
... boiling the red oxide with an excess of very dilute sul- phuric acid ( in the proportion , for example , of two measured drachms of strong acid to five ounces of water ) , a colourless solution of the protosulphate is obtained ; while a ...
Side 34
... boiled in dilute sulphuric acid . The colour of the deutoxide of manganese varies with the source from which it is derived . That which is procured by heat from the native peroxide or the hydrated deutoxide , has a brown tint ; but when ...
... boiled in dilute sulphuric acid . The colour of the deutoxide of manganese varies with the source from which it is derived . That which is procured by heat from the native peroxide or the hydrated deutoxide , has a brown tint ; but when ...
Side 67
... boiling water ; when cold the infusion is to be filtered , and sulphuric acid added to it gradually , as long as precipitation occurs . This precipitate is a compound of the acid with the saccharine matter . It is first to be washed ...
... boiling water ; when cold the infusion is to be filtered , and sulphuric acid added to it gradually , as long as precipitation occurs . This precipitate is a compound of the acid with the saccharine matter . It is first to be washed ...
Side 69
... boiling , but the liquor becomes milky on cooling . If the vegetable gelatine be dissolved with heat in weak spirit of wine , it precipitates on cooling , retaining its glutinous property ; it dis- solves in vinegar , leaving a white ...
... boiling , but the liquor becomes milky on cooling . If the vegetable gelatine be dissolved with heat in weak spirit of wine , it precipitates on cooling , retaining its glutinous property ; it dis- solves in vinegar , leaving a white ...
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Almindelige termer og sætninger
æther alcoate alcohol alkali alumina ammonia analysis angle Annals appears ascertained atmosphere baryta Beachy Head boiling carbonic acid Cloudy colour compound containing crystals decomposed degree deposits determine deutoxide difference of longitude dissolved Ephemeris equal equation Ernst evaporated examined experiments feet fluid formula given grains granite heat Hübn hydrogen inches iron latitude lava lime Linn liquid manganese mass matter means measure memoir mercury meridian metal method micrometer mineral minute molecules months motion muriatic acid nearly nitric nitric acid object-glass observations obtained oxide oxygen p+iq particles peroxide perpendicular phænomena phænomenon Phil plane plants pollen portion potash powder precipitate protoxide psilomelane pyrolusite quantity rain red oxide remarkable respecting result right ascension salt similar solution species specific gravity specimens spheroid stars strata substance sulphuretted sulphuric acid supposed surface telescope temperature tion tube
Populære passager
Side 380 - The most accurate in observation, the most philosophical in contemplation, and the most faithful in description, amongst all the botanists of his own, or perhaps any other time.
Side 163 - ... the particle. In a few instances the particle was seen to turn on its longer axis. These motions were such as to satisfy me, after frequently repeated observation, that they arose neither from currents in the fluid, nor from its gradual evaporation, but belonged to the particle itself.
Side 93 - To what extent subterraneous cavities may exist even in common rocks is shown in the limestone caverns of Carniola, some of which contain many hundred thousand cubical feet of air ; and in proportion as the depth of an excavation is greater, so is the air more fit for combustion. The same circumstance which would give alloys of the metals of the earths the power of producing volcanic phenomena, namely...
Side 166 - I never failed to disengage the molecules in sufficient numbers to ascertain their apparent identity in size, form, and motion, with the smaller particles of the grains of pollen. I examined also various products of organic bodies, particularly the gum resins, and substances of vegetable origin, extending my inquiry even to pit-coal ; and in all these bodies molecules were found in abundance. I remark here also, partly as a caution to those who may hereafter engage in the same inquiry, that the dust...