Über die Bestimmung des Sättigungszustandes von Polyenen mittels Chlorjods und Benzopersäure (II. Mitteilung über Carotinoide)
✍ Scribed by Pummerer, Rudolf ;Rebmann, Ludwig ;Reindel, Wilhelm
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1929
- Weight
- 565 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0365-9631
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📜 SIMILAR VOLUMES
## Abstract At pH ca. 4 the rate of oxidation of ascorbic acid and of phenylhydroxytetronic acid by nitrous acid in the presence of excess nitrite ions is found to be independent of reductone concentration. The rate law is k~2~ was evaluated both in water and in aqueous dioxan. Under the same cond
## Abstract Addition of azide ions considerably slows down the oxidation of ascorbic acid by nitrous acid. At a pH of about 2 an approximately 10 fold excess of hydrazoic acid over ascorbic acid changes the rate law found in part III into This is identical with the rate law found in 0·1 to 0·5 M a
## Abstract At pH ca. 2 the oxidation of reductones by nitrous acid follows the rate law Both k and k were determined for ascorbic acids in water and in aqueous dioxan and for phenylhydroxytetronic acid in water. The reductonate anions are about 200 times more reactive than the acids in water and