The Philosophy of Experimental Chemistry, Tom 1I. Peirce, 1813 - 694 |
Z wnętrza książki
Wyniki 1 - 5 z 67
Strona 15
... four classes , each of which is characterised by some general property . 1. MALLEABLE . 1. Gold 2. Platinum 9. Copper 10. Iron 3. Silver 4. Mercury 11. Nickel 12. Nicolanum 5. Palladium 13. Tin 6. Rhodium 14. Lead 7. Iridium 15. Zinc 8 ...
... four classes , each of which is characterised by some general property . 1. MALLEABLE . 1. Gold 2. Platinum 9. Copper 10. Iron 3. Silver 4. Mercury 11. Nickel 12. Nicolanum 5. Palladium 13. Tin 6. Rhodium 14. Lead 7. Iridium 15. Zinc 8 ...
Strona 26
James Cutbush. powder and digested , by the assistance of heat , in four parts of nitro - muriatic acid , renewing the acid as it evaporates , a solution of the gold will be formed . The same process may be repeated until all the gold is ...
James Cutbush. powder and digested , by the assistance of heat , in four parts of nitro - muriatic acid , renewing the acid as it evaporates , a solution of the gold will be formed . The same process may be repeated until all the gold is ...
Strona 28
... four ca- rats fine . If twenty - two parts of gold , and two parts of copper be fused together , the gold is said to be twenty - two carats fine , or gold of twenty - two carats . Experiment 4. If a narrow strip of gold leaf be put ...
... four ca- rats fine . If twenty - two parts of gold , and two parts of copper be fused together , the gold is said to be twenty - two carats fine , or gold of twenty - two carats . Experiment 4. If a narrow strip of gold leaf be put ...
Strona 38
... four grains ; among the German's into 12 ; and by the French it was formerly divided into 32 . Parting or quartation . Gold is purified , if it should exist with silver , by the process called parting or quar- tation . The latter term ...
... four grains ; among the German's into 12 ; and by the French it was formerly divided into 32 . Parting or quartation . Gold is purified , if it should exist with silver , by the process called parting or quar- tation . The latter term ...
Strona 41
... four at the most , each consisting of a single leaf , for com- mon works ; or two for extraordinary ones . The heating is repeated at each layer , and last of all the work is burnished . Grecian gilding . Is performed in the following ...
... four at the most , each consisting of a single leaf , for com- mon works ; or two for extraordinary ones . The heating is repeated at each layer , and last of all the work is burnished . Grecian gilding . Is performed in the following ...
Spis treści
13 | |
25 | |
44 | |
49 | |
63 | |
74 | |
76 | |
78 | |
187 | |
188 | |
189 | |
190 | |
191 | |
192 | |
194 | |
195 | |
80 | |
82 | |
97 | |
113 | |
116 | |
118 | |
128 | |
131 | |
136 | |
141 | |
143 | |
148 | |
152 | |
153 | |
157 | |
161 | |
162 | |
163 | |
165 | |
166 | |
168 | |
170 | |
171 | |
172 | |
174 | |
175 | |
176 | |
177 | |
178 | |
179 | |
180 | |
182 | |
183 | |
196 | |
197 | |
198 | |
200 | |
202 | |
204 | |
205 | |
206 | |
207 | |
208 | |
209 | |
216 | |
252 | |
276 | |
310 | |
312 | |
315 | |
320 | |
321 | |
322 | |
324 | |
325 | |
326 | |
327 | |
328 | |
329 | |
330 | |
331 | |
332 | |
335 | |
336 | |
337 | |
338 | |
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
acetate of lead acetic acid acid be added acid be saturated acid gas acid unites alcohol alkali alloy alumina ammonia antimony arsenic arsenic acid barytes bismuth black oxyd blue boiling boracic acid borate carbonate of potash carbonic acid charcoal cobalt compound contains 100 acid converted copper crucible decomposed diluted dissolved distilled evaporated filter fluate fluid fluoric acid fused gallic acid glass gold grains green hydrogen gas hyper-oxymuriate insoluble lime liquor magnesia manganese melted metal mixed mixture molybdate muriate of ammonia muriate of soda muriatic acid nickel nitrate nitrate of potash nitre nitric acid nitrous obtained ounce oxalic oxyd oxyd of lead oxygen oxymuriate oxymuriatic acid phosphate phosphoric acid phosphorus phosphuret platinum produced prussiate of potash quantity Rationale Remark retort SECTION separated sided prisms silver soluble in water specific gravity strong heat strontian succinate sulphate of iron sulphate of potash sulphuret sulphuric acid volatile weight white powder white precipitate zinc
Popularne fragmenty
Strona 6 - IDE, of the said District, hath deposited in this office, the title of a book, the right whereof he claims as proprietor, in the words following, to wit : " Inductive Grammar, designed for beginners. By an Instructer." In conformity to the act of the Congress of the United States...
Strona 6 - And also to the act, entitled " An act supplementary to an act, entitled " An act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies, during the time therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and etching historical and Other prints.
Strona 62 - ... are rubbed, after which they are made red-hot, and then polished. The intention of this process appears to be little more than to apply the silver in a state of minute division to the clean surface of the copper, and afterwards to fix it there by fusion ; and, accordingly, this silvering may be effected by using the argentine precipitate, here mentioned, with borax or mercury, and causing it to adhere by fusion. The...
Strona 194 - Into a large glass jar inverted upon a flat brick tile, and containing near its top a branch of fresh rosemary, or any other such shrub moistened with water, introduce a flat, thick piece of heated iron, on which place some gum benzoin in gross powder. The...
Strona 203 - If a piece be then well washed in pure warm water, and afterwards boiled in a decoction of logwood, the ground will be dyed either of a slate or black colour, according to the strength of the metallic solution, while the printed figures will remain beautifully white. This experiment is designed to show the effect of acids in discharging vegetable colours.
Strona 42 - Expert artists however make these additional applications while the piece remains in the furnace, though the practice is said to be highly noxious, on account of the mercurial fumes. After this it is rubbed with gilders...
Strona 56 - Dissolve dry nitrate of silver in pure water ; add a little oil of turpentine, shake the mixture, and cork it close. Submit the phial with its contents to the heat of boiling water for an hour, when the metal will be revived, and the inside of the phial, where the oil reposed on the aqueous solution, will be beautifully silvered, the reduced metal forming a metallic ring, extending quite round the phial.
Strona 156 - Write with a solution of muriate of cobalt, and the writing, while dry, will not be perceptible ; but if held towards the fire, it will then gradually become visible ; and if the muriate of cobalt be made in the usual way, the letters will appear of an elegant green colour.
Strona 92 - If a piece of bright silver be dipped in a solution of sulphate of copper, it will come out unchanged : but if the blade of a clean penknife, or any piece of polished iron, be dipped in the same solution, the iron will instantly put on the appearance of copper.
Strona 40 - When any thing is to be gilded, it must be previously well burnished ; a piece of cork is then to be dipped, first into a solution of salt in water, and afterwards into the black powder ; and the piece, after being rubbed with it, must be burnished. This powder is frequently used for gilding delicate articles of silver.