Encyclopædia Britannica: Or, A Dictionary of Arts, Sciences, and Miscellaneous Literature, 4. köide,2. osaColin Macfarquhar, George Gleig A. Bell and C. Macfarquhar, 1797 |
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Page 436
... melted in 246 ° . We have feen , however , a piece of Subftances . metal compounded of these three , the proportions un- known , which melted , and even underwent a flight degree of calcination , in boiling water , and barely itif ...
... melted in 246 ° . We have feen , however , a piece of Subftances . metal compounded of these three , the proportions un- known , which melted , and even underwent a flight degree of calcination , in boiling water , and barely itif ...
Page 539
... melt together into an opaque brown or blackifh glass . Cop- per does not unite with melted lead till the fire is rai- fed fo high as to make the lead finoke and boil , and of a bright red heat . Pieces of copper , now thrown in , foon ...
... melt together into an opaque brown or blackifh glass . Cop- per does not unite with melted lead till the fire is rai- fed fo high as to make the lead finoke and boil , and of a bright red heat . Pieces of copper , now thrown in , foon ...
Page 612
... melting heat , unless some bifmuth has been previously united with the mercury . ZINC . Hard and brittle . By pouring zinc on melted lead . If the zinc is firft melted , and the lead in . jected upon it , it then deflagrates . ANTIMONY ...
... melting heat , unless some bifmuth has been previously united with the mercury . ZINC . Hard and brittle . By pouring zinc on melted lead . If the zinc is firft melted , and the lead in . jected upon it , it then deflagrates . ANTIMONY ...
Common terms and phrases
acetous acid alfo alum antimony aqua regia arfenic bifmuth boiling borax cafe calcined calx caufe cauftic Chineſe cobalt colour confiderable confiftence contained copper crucible cryftals decompofed dephlogifticated diffolved diftillation digeftion drachms eafily earth effervefcence evaporated expofed fal ammoniac faline falt fame faturated feems feparated fhould filk filver fimilar fire firft fixed air fixed alkali fmall fmell foluble folution fome fometimes foon fpecific gravity fpirit of wine ftate ftill ftrong fubftance fublimate fuch fufficient fufion fugar fulphur fuppofed furface glafs gold grains heat inflammable iron itſelf laft lefs likewife liquor mafs manganefe marine acid matter melted mercury metal mineral alkali mixed mixture moft moſt neceffary nitre nitrous acid obferved obtained oil of vitriol ounces phlogifton platina powder precipitate procefs pure purpoſe quantity quicklime reafon refiduum regulus retort ſmall tartar thefe theſe thofe thoſe tion uſed vapours veffel vitriolic acid volatile alkali yellow zinc