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אסיף מאגר המחקר החקלאי
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Measurements of atmospheric deterioration of citrus spray oils
Year:
1979
Source of publication :
Phytoparasitica
Authors :
Aharonson, Nadav
;
.
Veierov, Dan
;
.
Volume :
7
Co-Authors:
Veierov, D.
Aharonson, N., Div. of Pesticide Chemistry and Residue Research, ARO, The Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
89
To page:
98
(
Total pages:
10
)
Abstract:
Autoxidative deterioration of three commercial mineral spray oils was studied by measuring oxygen absorption under atmospheric conditions and by an accelerated method in the laboratory. The outdoor experiment showed an absorption of 0.02-0.25 moles of oxygen per mole of oil during the first 5 days, which increased to 0.13-0.42 moles after 20 days of exposure. The oxygen absorption was accompanied by separation of insoluble tar-like substances. The relative rates of the autoxidation of the three oils were found to be in agreement with their tendency to cause excessive fruit drop. Accelerated autoxidation was performed under controlled conditions of temperature, light spectrum and relative light intensity; it was accomplished in several hours and gave approximately the same results as the outdoor experiment. The accelerated procedure is closely correlated with the atmospheric one and thus is suitable as a routine test for spray oils, for mineral oil fraction or formu-lations, and for mixtures of oils with other pesticides. © 1979 Springer Science + Business Media B.V.
Note:
Related Files :
autoxidation
Citrus
Spray oil
Show More
Related Content
More details
DOI :
10.1007/BF02981581
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
28708
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:41
Scientific Publication
Measurements of atmospheric deterioration of citrus spray oils
7
Veierov, D.
Aharonson, N., Div. of Pesticide Chemistry and Residue Research, ARO, The Volcani Center, Bet Dagan, Israel
Measurements of atmospheric deterioration of citrus spray oils
Autoxidative deterioration of three commercial mineral spray oils was studied by measuring oxygen absorption under atmospheric conditions and by an accelerated method in the laboratory. The outdoor experiment showed an absorption of 0.02-0.25 moles of oxygen per mole of oil during the first 5 days, which increased to 0.13-0.42 moles after 20 days of exposure. The oxygen absorption was accompanied by separation of insoluble tar-like substances. The relative rates of the autoxidation of the three oils were found to be in agreement with their tendency to cause excessive fruit drop. Accelerated autoxidation was performed under controlled conditions of temperature, light spectrum and relative light intensity; it was accomplished in several hours and gave approximately the same results as the outdoor experiment. The accelerated procedure is closely correlated with the atmospheric one and thus is suitable as a routine test for spray oils, for mineral oil fraction or formu-lations, and for mixtures of oils with other pesticides. © 1979 Springer Science + Business Media B.V.
Scientific Publication
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