| 摘要 |
<p>Liquid pesticidal compsns. comprise (a) 10-60% of a cpd. of formula as active component where R is an organic gp. (is not > C4): Z = O or S; X,X1' = halogen, esp. Cl, br; (b) 10-85% of a volatile stabiliser with a vapour pressure of 0.01 to 5 mm Hg at 20 degrees C. of formula where R1 = H, Me, Et; R2 = H, Me; R3 = H, alkyl (C1-C6), OMe, CN; R4 = 1-3 opt. halogen, alkyl (C1-5) OMe, OEt, NO2, CN; or R4 may be vinyl, ethynyl, phenyl or conjugated divalent chain forming a naphthalene gp. with the benzene ring (c) 3-30% of >=1 emulsifying agent (d) an opt. complementary stabilising agent soluble in the other mixed components and/or an additional solvent for the organophosphorus deriv. having a vapour pressure >1 mm Hg at 20 degrees C. the co-evaporants having a vapour pressure of 0.01-1 mm Hg. at 20 degrees C. Long-active insecticidal emulsifiable concentrates.</p> |
