If the analyst is in doubt as to the completion of the hydrolysis, allow a portion of the solution to remain for several hours and again polarize. If there is no change from the previous reading, the inversion is complete, and the reading and temperature... Circular of the National Bureau of Standards - Page 158by United States. National Bureau of Standards - 1942Full view - About this book
| United States. Bureau of Chemistry - 1906 - 1020 pages
...at that temperature. This reading must be multiplied by two, which gives the invert reading. In case it is necessary to work at a temperature other than 20° C., which is allowable within narrow limits, the volumes must be completed and both direct and invert polarizations... | |
| United States. Bureau of Chemistry - 1908 - 300 pages
...at that temperature. This reading must be multiplied by two, which gives the invert reading. In case it is necessary to work at a temperature other than 20° C., which is allowable within narrow limits, the volumes must be completed and both direct and invert polarizations... | |
| Philippines. Bureau of Agriculture - 1914 - 1124 pages
...at that temperature. This reading must be multiplied by two, which gives the invert reading. In case it is necessary to work at a temperature other than 20° C, which is allowed within narrow limits, the volumes must be completed and both direct and invert polarizations... | |
| Henry Corbin Fuller - 1920 - 1100 pages
...maintaining a temperature of 20° C. This reading must be multiplied by 2 to obtain the invert reading. If it is necessary to work at a temperature other than 20° C., which is allowable within narrow limits, the volumes must be completed and both direct and invert polarizations... | |
| Association of Official Analytical Chemists - 1920 - 656 pages
...in a 200 mm. tube. Allow the solution to remain in the tube for an hour and repeat the polarization. If there is no change from the previous reading the inversion is complete; then the reading and temperature of the solution are carefully noted. The reading is corrected for... | |
| Association of Official Analytical Chemists - 1920 - 438 pages
...in a 200 mm. tube. Allow the solution to remain in the tube for an hour and repeat the polarization. If there is no change from the previous reading, the inversion is complete, whereupon the reading and temperature of the solution are carefully noted. Correct the reading for... | |
| Roger Castle Griffin - 1921 - 696 pages
...and water jacket, keeping at 20° C. This reading must be doubled to obtain the invert reading. If necessary to work at a temperature other than 20° C., which is allowable within narrow limits, the volumes must be completed and both direct and invert polarizations... | |
| Association of Official Analytical Chemists - 1925 - 582 pages
...dilute to 100 cc. at 20°C. Mix well and polarize at 20°C. in a 200 mm. tube. If the analyst is in doubt as to the completion of the hydrolysis, allow...from the previous reading, the inversion is complete, and the reading and temperature of the solution should be carefully noted. If it is necessary to work... | |
| Roger Castle Griffin - 1927 - 968 pages
...and water jacket, keeping at 20° C. This reading must be doubled to obtain the invert reading. If necessary to work at a temperature other than 20° C., which is allowable within narrow limits, the volumes must be completed and both direct and invert polarizations... | |
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