Encyclopædia Britannica: Or, A Dictionary of Arts, Sciences, and Miscellaneous Literature, 4. köide,2. osaColin Macfarquhar, George Gleig A. Bell and C. Macfarquhar, 1797 |
From inside the book
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Page 518
... copper by the volatile alkali . - On faturating dilute fpirit of fal ammoniac with copper - filings , cryftals are formed of a dark - blue colour , but which , by expofure to the air , fall to pieces and become green . Vinous fpirit of ...
... copper by the volatile alkali . - On faturating dilute fpirit of fal ammoniac with copper - filings , cryftals are formed of a dark - blue colour , but which , by expofure to the air , fall to pieces and become green . Vinous fpirit of ...
Page 531
... Copper . Copper . fome manufacturers cement the brafs a fecond time. Copper . by boiling in clean copper - veffels , without the prepa- rations receiving any ill tafte from the metal ; whereas , either the juices themfelves , or the ...
... Copper . Copper . fome manufacturers cement the brafs a fecond time. Copper . by boiling in clean copper - veffels , without the prepa- rations receiving any ill tafte from the metal ; whereas , either the juices themfelves , or the ...
Page 532
... Copper . fome manufacturers cement the brafs a fecond time with calamine and charcoal ; and fometimes add to it old brafs , by which the new is faid to be meliorated . Brafs is brittle when hot ; but fo ductile when cold , that it may ...
... Copper . fome manufacturers cement the brafs a fecond time with calamine and charcoal ; and fometimes add to it old brafs , by which the new is faid to be meliorated . Brafs is brittle when hot ; but fo ductile when cold , that it may ...
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