The Estimation of Iodin in Organic Compounds And Its Separation From Other Halog
The Estimation of Iodin in Organic Compounds And Its Separation From Other Halog
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2636 99. 84 . 10 potassium bromid . 10 sodium chlorid I"" \ do....
. 2635 99. 82 . 05 potassium bromid SERIES B. (20 cc of solution =0. 4885 gram of iodin used. ) None Direct precipitation .
0. 4876 99. 84 Do do . 4877 99 86 0. 2 sodium chlorid -f 0. 1 potassium bromid . . .
Permanganate oxidation . .
. 4871 99. 75 Do do . 4888 100. 1 In order to test the applicability of the method to the estimation of iodin in erythrosin a sample of this color was synthesized, the fluorescein, prepared from K...ahlbaum's resorcin and phthalic anhy- drid, being completely freed from chlorids by repeated precipitation from alkaline solution by acetic acid. This was combined with some of the purified iodin just described, and finally separated as the color acid. This preparation contained no halogen other than iodin, of which the alkaline fusion method indicated 56. 40 per cent, as shown in Table 2. After further experimental work on the proper proportion of reagents to be employed the following procedure was adopted : Place from 0.
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You can find similar books in the "Read Also" column, or choose other free books by Albert Frederick Seeker to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
2636 99. 84 . 10 potassium bromid . 10 sodium chlorid I"" \ do....
. 2635 99. 82 . 05 potassium bromid SERIES B. (20 cc of solution =0. 4885 gram of iodin used. ) None Direct precipitation .
0. 4876 99. 84 Do do . 4877 99 86 0. 2 sodium chlorid -f 0. 1 potassium bromid . . .
Permanganate oxidation . .
. 4871 99. 75 Do do . 4888 100. 1 In order to test the applicability of the method to the estimation of iodin in erythrosin a sample of this color was synthesized, the fluorescein, prepared from K...ahlbaum's resorcin and phthalic anhy- drid, being completely freed from chlorids by repeated precipitation from alkaline solution by acetic acid. This was combined with some of the purified iodin just described, and finally separated as the color acid. This preparation contained no halogen other than iodin, of which the alkaline fusion method indicated 56. 40 per cent, as shown in Table 2. After further experimental work on the proper proportion of reagents to be employed the following procedure was adopted : Place from 0.
What to read after The Estimation of Iodin in Organic Compounds And Its Separation From Other Halog?
You can find similar books in the "Read Also" column, or choose other free books by Albert Frederick Seeker to read onlineMoreLess
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