fipronil

Common name: Fipronil (BSI, pa E-ISO)
CAS RN: [120068-37-3]

PHYSICAL CHEMISTRY
Mol. Wt.: 437.2
M. F.: C12H4Cl2F6N4OS
Form: White solid.
M. P.: 200-201 Centigrade degree; (tech., 195.5-203 Centigrade degree)
V. P.: 3.7 10-4 mPa (25 Centigrade degree)
KOW: LogP = 4.0 (shake flask method)
Henry: 3.7 10-5 Pa m3 mol-1 (calc. )
S. G. /density: 1.477-1.626 (20 Centigrade degree)
Solubility In water: 1.9 (pH 5), 2.4 (pH 9), 1.9 (distilled) (all in mg/l, 20 Centigrade degree). In acetone 545.9, dichloromethane 22.3, hexane 0.028, toluene 3.0 (all in g/l, 20 Centigrade degree).

Stability: Stable in water at pH 5 and 7; Slowly hydrolysed at pH 9 (DT50 c. 28 d). Stable to heat. Slowly degrades in sunlight (c. 3% loss after 12 d continuous irradiation); Rapidly photolysed in aqueous solution (DT50 c. 0.33 d).

APPLICATIONS

Mode of action: Broad-spectrum insecticide, toxic by contact and ingestion. Moderately systemic and, in some crops, can be used to control insects when applied as a soil or seed treatment. Good to excellent residual control following foliar application.

Uses: Control of multiple species of thrips on a broad range of crops by foliar, soil or seed treatment. Control of corn rootworm, wireworms and termites by soil treatment in maize. Control of boll weevil and plant bugs on cotton, diamond-back moth on crucifers, Colorado potato beetle on potatoes by foliar application. Control of stem borers, leaf miners, planthoppers, leaf folder/rollers and weevils in rice. Foliar application rates range from 10-80 g/ha; Soil treatment rates 100-200 g/ha.
Formulation:fipronil 97% tech, fipronil 80%wdg, 80%WG; 80%WP; 50g/L, 200g/L SC.