 | 1869 - 488 páginas
...upon steel the reaction must continue two to three hours), place the tube in a large vase filled with water to bring the solution always to the same temperature....graduated burette. Upon the black residue remaining in tho tube pour some drops of nitric acid and heat carefully over a lamp. If there is no further liberation... | |
 | 1870 - 780 páginas
...upon steel the reaction must continue two to three hours), place the tube in a large vase filled with water, to bring the solution always to the same temperature....carefully over a lamp. If there is no further liberation ot gas, the residue consists of nothing but graphite or silica. Cool the new solution, and add it to... | |
 | 1870 - 776 páginas
...upon Bteel the reaction must continue two to three hours), place the tube in a large vase filled with water, to bring the solution always to the same temperature....is darker when warm than when cold. Afterward, pour oft' as exactly as possible the clear liquid into a graduated burette. Upon the black residue remaining... | |
 | 1870 - 410 páginas
...upon steel, the reaction must continue two to three hours), place the tube in a large vase filled with water, to bring the solution always to the same temperature....is darker when warm than when cold. Afterward, pour o(F, as exactly as possible, the clear liquid into a graduated burette. Upon the black residue remaining... | |
 | 1870 - 780 páginas
...the reaction must continue two to three iionn), place the tubein a large vase filled with water, t< bring the solution always to the same temperature....This precaution is indispensable, because the same lid U darker when warm than when cold. After;»rl, pour off as exactly as possible the clear liquid... | |
 | William Crookes - 1871 - 500 páginas
...steel, the reaction must continue two or three hours), place the tube in a large vessel filled with water, to bring the solution always to the same temperature....heat carefully over a lamp. If there is no further liberat1on of gas, the residue consists of nothing but graphite or silica. Cool the new solution, and... | |
 | 1873 - 796 páginas
...upon steel the reaction must continuo two to three hours), place the tube in a large vase filled with water, to bring the solution always to the same temperature....is darker when warm than when cold. Afterward, pour oft" as exactly as possible the clear liquid Jito a graduated burette. Upon the black residue remaining... | |
 | John Mitchell (F.C.S.) - 1888 - 1002 páginas
...steel, the reaction must continue two or three hours), place the tube in a large vessel filled with, water, to bring the solution always to the same temperature....the same liquid is darker when warm than when cold. Afterwards, pour off, as exactly as possible, the clear liquid into a graduated burette. Upon the black... | |
 | 1869 - 946 páginas
...upon steel the reaction must continue two to three hours), place the tube in a large vase filled with water to bring the solution always to the same temperature....graduated burette. Upon the black residue remaining in tho tube pour some drops of nitric acid and heat carefully over a lamp. If there is no further liberation... | |
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... all the particles of carbon may be observed. The operation should always be conducted under the same circumstances as to heat and length of time. The evolution of gas having ceased (in operating upon steel the reaction must continue two to three hours),... 