 | Chemical Society (Great Britain) - Chemistry - 1898 - 1020 pages
...a tightly fitting cover. This is then heated for 7 minutes over the full flame of a Bunsen burner. The crucible should be supported on a platinum triangle...6 to 8 cm. above the top of the burner ; the flame should be 20 to 25 cm. high when burning free, and the experiment made in a place protected from draught.... | |
 | Chemistry - 1898 - 356 pages
...Combustible Matter.— Place one grm. of fresh undried coal in a platinum crucible, weighing 20 to 30 grms. and having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6 to 8 cm above... | |
 | Andrew Alexander Blair - Analytical chemistry - 1876 - 456 pages
..." Place i gramme of fresh, undried, powdered coal in a platinum crucible weighing 20 or 30 grammes and having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom from 6 to 8... | |
 | Michigan. Geological Survey - Clay - 1900 - 838 pages
...to 30 grams and having a tightly fitted cover. Heat over the full flame of a Bunsen burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom (i to S centimeters above the top of the burner. The flame used should be 20 to 25 centimeters high... | |
 | United States. Philippine Commission (1900-1916) - Philippines - 1901 - 608 pages
...follows : " Place 1 gram of fresh, undried, powdered coal in a platinum crucible weighing 20 to 30 grams and having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6 to 8 centimeters... | |
 | Geology - 1908 - 874 pages
....'!(> grams and having a tightly fitting rover. Heat over the full flame of a Bunsen burner for seven minutes. The crucible should be supported on a platinum triangle, with the bottom ti to S centimeters above the top of the burner. The flame should be fully 20 centimeters high when... | |
 | 1909 - 516 pages
...Society, Vol. 21, page 1116. Place I gram of pure bitumen in a platinum crucible weighing 20 or 30 grams and having a tightly fitting cover. Heat over the full flame of a Bun sen burner for seven minutes. The crucible should be supported on a platinum triangle with the... | |
 | Edmund Howd Miller - Analytical chemistry - 1904 - 218 pages
...20-30 grams, and having a well-fitting cover. Heat over the full flame of a Bunser burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6-8 cm. above the top of the burner. The flame should be 25 cm. high, and the determination made in... | |
 | Chemistry - 1904 - 480 pages
...20-30 grams, and having a well-fitting cover. Heat over the full flame of a Bunser burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6-8 cm. above the top of the burner. The flame should be 25 cm. high, and the determination made in... | |
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Place 1 gram of pure bitumen in a " platinum crucible weighing 20 or 30 grams and having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6... 
