 | 1848 - 548 σελίδες
...precipitate is now to be treated after the process recommended by Fresenius, which consists in fusing it with five times its weight of a mixture of equal parts of nitre and carbonate of soda. The operation should be performed in a platinum, or rather in a silver... | |
 | Chemical Society (Great Britain) - 1899 - 1246 σελίδες
...1899, 21, 431 — 435). — About half a gram of the finely powdered ore is mixed with from six to ten times its weight of a mixture of equal parts of sodium carbonate and potassium nitrate and the mass gradually heated to fusion, which is maintained for some minutes. On cooling,... | |
 | Chemical Society (Great Britain) - 1923 - 1348 σελίδες
...arsenate, and antimonate by heating any organic or inorganic compound containing these elements with twice its weight of a mixture of equal parts of sodium carbonate and potassium permanganate under a layer of the same mixture in an iron crucible for one hour at a low red heat.... | |
 | Chemical Society (Great Britain) - 1897 - 976 σελίδες
...phosphorus present. In order to get the whole of the phosphorus into solution, the ash must be heated with five times its weight of a mixture of equal parts of potassium and sodium carbonates. CHB Estimation of Readily-Soluble Phosphoric Acid in Basic Slags.... | |
 | Alphonse Normandy - 1850 - 688 σελίδες
...precipitate is now to be treated after the process recommended by Fresenius, which consists in fusing it with five times its weight of a mixture of equal parts of nitre and carbonate of soda. The operation should be performed in a platinum or rather in a silver... | |
 | 1884 - 716 σελίδες
...Arsenic. LW Me Cay. {Chemical News, xlviii. 7-9.) The finely powdered substance is mixed with four or five times its weight of a mixture of equal parts of sodium carbonate and potassium nitrate, and thoroughly fused in a porcelain crucible. After half an hour the crucible and contents... | |
 | Royal Society (Great Britain) - 1873 - 578 σελίδες
...which shows that they readily reabsorb water. The analysis of the salt was made by fusing it with 2£ times its weight of a mixture of equal parts of sodium carbonate and potassium nitrate. The filtrate was in some cases neutralized with acetic acid, acidulated with nitric acid,... | |
 | Royal Society (Great Britain) - 1873 - 614 σελίδες
...which shows that they readily reabsorb water. The analysis of the salt was made by fusing it with 2£ times its weight of a mixture of equal parts of sodium carbonate and potassium nitrate. The filtrate was in some cases neutralized with acetic acid, acidulated with nitric acid,... | |
 | George Chapman Caldwell, Abram Adams Breneman - 1878 - 202 σελίδες
...are exposed to other gases under similar conditions. 1. Heat I gm. of tin in a crucible with 2 gms. of a mixture of equal parts of sodium carbonate and potassium carbonate, and, after the fusion has been maintained three minutes, and the crucible has been allowed to cool,... | |
 | 1884 - 716 σελίδες
...Arsenic. LW Me Cay. (Chemical News, xlviii. 7-9.) The finely powdered substance is mixed with four or five times its weight of a mixture of equal parts of sodium carbonate and potassium nitrate, and thoroughly fused in a porcelain crucible. After half an hour the crucible and contents... | |
| |
Then add the precipitate together with about five times its weight of a mixture of equal parts of sodium carbonate and sulphur, and fuse over a Bunsen burner. 
