Two New Pieces of Chemical Apparatus I Apparatus for the Continuous Extraction
Two New Pieces of Chemical Apparatus I Apparatus for the Continuous Extraction
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In the apparatus proposed by us no attempt is made to remove the air before reaction, the volume of evolved gas being simply measured by the increase in volume of the total gases after reaction. Thus the Spica method as carried out in this apparatus is as follows : Place about 0. 2 gram of citric acid in the reaction chamber (B), open the stopcock (X) and bring the liquid (in this case a strong sodium hydrate solution) to the zero mark (G) in the eudiometer tube by raising or lowering the level...ing tube (E). The air in the appa- ratus is then at atmospheric pressure. Close (X). To (A) add about 15 cc of concentrated sulphuric acid. Lower the leveling tube so that the air in the apparatus is under reduced pressure. By carefully opening the stopcock (X) run in exactly 10 cc of the sulphuric acid. Close (X) and heat to about 100 C. By means of the heating coil until the reaction is complete. Let the apparatus stand until the absorption of other gases (sul- phur dioxid, etc. ) is complete and it has reached room temperature.
What to read after Two New Pieces of Chemical Apparatus I Apparatus for the Continuous Extraction?
You can find similar books in the "Read Also" column, or choose other free books by Raymond Foss Bacon to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In the apparatus proposed by us no attempt is made to remove the air before reaction, the volume of evolved gas being simply measured by the increase in volume of the total gases after reaction. Thus the Spica method as carried out in this apparatus is as follows : Place about 0. 2 gram of citric acid in the reaction chamber (B), open the stopcock (X) and bring the liquid (in this case a strong sodium hydrate solution) to the zero mark (G) in the eudiometer tube by raising or lowering the level...ing tube (E). The air in the appa- ratus is then at atmospheric pressure. Close (X). To (A) add about 15 cc of concentrated sulphuric acid. Lower the leveling tube so that the air in the apparatus is under reduced pressure. By carefully opening the stopcock (X) run in exactly 10 cc of the sulphuric acid. Close (X) and heat to about 100 C. By means of the heating coil until the reaction is complete. Let the apparatus stand until the absorption of other gases (sul- phur dioxid, etc. ) is complete and it has reached room temperature.
What to read after Two New Pieces of Chemical Apparatus I Apparatus for the Continuous Extraction?
You can find similar books in the "Read Also" column, or choose other free books by Raymond Foss Bacon to read onlineMoreLess
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