 | 1771 - 494 páginas
...alcohol will have disappeared, and the liquid will have acquired a peculiar but agreeable vinous odour. It is in this state that I prefer to employ it. 6....solution is made of nitrate of silver, containing about seventy grains to one ounce of water. To three parts of this add two of acetic acid. Then if the prepared... | |
 | 1852 - 446 páginas
...results are much influenced by this part of the process. 3. Dip the plate into this solution, and then let it dry spontaneously. Faint prismatic colors will...is rapidly dipped once or twice into this solution, it acquires a very great degree of sensibility, and it Ought then to be placed in the camera without... | |
 | 1852 - 460 páginas
...results are much influenced by this part of the process. 3. Dip the plate into this solution, and then let it dry spontaneously. Faint prismatic colors will...is rapidly dipped once or twice into this solution, it acquires a very great degree of sensibility, and it ought then to bo placed in the camera without... | |
 | Robert Hunt - 1853 - 356 páginas
...alcohol will have disappeared, and the liquid will have acquired a peculiar but agreeable vinous odour. It is in this state that I prefer to employ it. 6....is rapidly dipped once or twice into this solution, it acquires a very great degree of sensibility, and it ought then to be placed in the camera without... | |
 | Robert Hunt - 1852 - 380 páginas
...alcohol will have disappeared, and the liquid will have acquired a peculiar but agreeable vinous odour. It is in this state that I prefer to employ it. 6....is rapidly dipped once or twice into this solution, it acquires a very great degree of sensibility, and it ought then to be placed in the camera without... | |
 | Robert Hunt - 1854 - 458 páginas
...alcohol, will have disappeared, and the liquid will have acquired a peculiar, but agreeable, vinous odour. It is in this state that I prefer to employ it. "...solution is made of nitrate of silver, containing about seventy grains to one ounce of water. To three parts of this add two of acetic acid. Then, if the prepared... | |
 | 1880 - 658 páginas
...alcohol will have disappeared, and the liquid will have acquired a peculiar but agreeable vinous odour. It is in this state that I prefer to employ it. —...solution is made of nitrate of silver, containing about seventy grains to one onnce of water. To three parts of this add two of acetic acid. Then, if the prepared... | |
 | Smithsonian Institution. Board of Regents - 1905 - 1062 páginas
...acquired a peculiar but agreeable vinous odor. It is in this state that I prefer to employ it. (!. Into the iodide thus prepared and modified the plate...of nitrate of silver, containing about 70 grains to 1 ounce of water. To 3 parts of this add '2 of acetic acid. Then, if the prepared plate is rapidly... | |
 | 1852 - 1172 páginas
...alcohol will have disappeared, and the liquid will have acquired a peculiar but agreeable vinous odour. It is in this state that I prefer to employ it. 6....moderate daylight, avoiding however the direct solar ray*. 7. A solution is made of nitrate of silver, containing about 70 grains to one ounce of water.... | |
 | 1905 - 1078 páginas
...an aqueous solution of proto-iodide of iron add, first, an equal volume of acetic acid, and then 10 volumes of alcohol. Allow the mixture to repose two...of nitrate of silver, containing about 70 grains to 1 ounce of water. To 3 parts of this add 2 of acetic acid. Then, if the prepared plate is rapidly dipped... | |
| |
To an aqueous solution of prot-iodide of iron add first an equal volume of acetic acid, and then ten volumes of alcohol. Allow the mixture to repose two or three days. At the end of that time it will have changed color, and the odor of acetic acid, as... 