The kinetics of the ozonation of four phenolic aldehydes is investigated from ozone absorption experiments in a semi-continuous reactor. After the evaluation of the stoichiometric ratios for the individual reactions between ozone and each aldehyde, the single oxidation of vanillin aldehyde (4-hydrox
Color reactions in the system, phenol-aldehyde-acid
β Scribed by Levine, Victor E.
- Publisher
- Elsevier
- Year
- 1931
- Weight
- 427 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0898-140X
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π SIMILAR VOLUMES
ANALYTICA CHIMICt\ ACTr\ 237 COLOR REACTIONS OF ALDEHYDES AND KETONES WITH VANILLIN IN ALKALINE MEDIUM v. f5. LEVINE, hf. 'I'ATEISKA VOL. 15 (1~56) H. ZINCKIS AND G. MULHAUSER, Uer., 36 (1903) 129 POUGNKT, Ijlrll. set. pitctrmucol., IG (1909) 142. r\h'C;ELIco, Gax. chtnr. ild., ,;o (1910) 403.
Previous work showed that the eff icient 'depolymerization'of bituminous coals in hot phenol containing p-toluenesulphonic acid failed to occur and that the acid was destroyed during the reaction. Four coals varying in rank from lignite to low volatile bituminous were treated with refluxing phenol c