Description
contact killing herbicide Common name: Oxyfluorfen
Other name: Oxyfluorfen (BSI, E-ISO, ANSI, WSSA); Oxyfluorfene ((m) F-ISO)
Iupac name: 2-chloro-α , α , α -trifiuoro-p-tolyl-3-ethoxy-4-nitrophenyl ether Chemical Abstracts name 2-chloro-1-(3-ethoxy-4- nitrophenoxy)-4-(trifluoromethyl)benzene
PHYSICAL CHEMISTRY
M. P.: 85-90º C; (tech., 65-84º C)
B. P.: 358.2º C (decomp. )
V. P.: (pure a. I. ) 0.0267 MPa (7-5º C)
S. G.: 1.35 (73º C)
Solubility.: In water 0.116 mg/l (25º C). Readily soluble in most organic solvents, e. 8. Acetone 72.5, cyclohexanone, isophorone 61.5, dimethylformamide >50, chloroform 50-55, mesityl oxide 40-50 (all in g/100 g, 25º C).
Stability: No significant hydrolysis in 28 d at pH 5-9 (25º C). Decomposed rapidly by u. V. Irradiation; UT50 3 d (room temperature). Stable up to 50º C.
KowlogP: 4.47
Specification: 95%TC, 24%EC
APPLICATION
Formulation types: EC; GR.
Biochemistry: Protoporphyrinogen oxidase inhibitor.
Mode of action: Selective contact herbicide, absorbed more readily by the foliage (and especially the shoots) than by the roots, with very little translocation.
Uses: Control of annual broad-leaved weeds and grasses in a variety of tropical and subtropical crops, by pre- or post-emergence application at rates in the range 0.25-2.0 kg a. I. /ha. Particular crops include tree fruit (including citrus), vines, nuts, cereals, maize, soya beans, peanuts, rice, cotton, bananas, peppermint, onions, garlic, ornamental trees and shrubs, and conifer seedbeds.
Phytotoxicity: Soya beans and cotton may be injured by contact with oxyfiuorfen.
| Item | Index | Result |
| Commodity name | Oxyfluorfen 24%EC |
| A.I. content % | ≥24.0 | 24.3 |
| Water, % | ≤0.5 | 0.4 |
| pH value | 6.0-9.0 | 6.7 |
| Cold stability | Qualified | Qualified |
| Heat stability | Qualified | Qualified |
| Emulsifiable stability | Qualified | Qualified |
| Appearance | Unclear liquid, free from visible suspension and deposition |
Complaint
