| 摘要 |
<p>Liq. herbicide concentrates comprise (a) a biscarbamate of formula R1NHCOO-Ar-NHCOXR2 (I) (where Ar is m-phenylene; R1 is phenyl opt. substd. by halogen or 1-4C alkyl; R2 is 1-4C alkyl; X is O or S); (b) a solvent; (c) a surfactant; and (d) a stabiliser comprising HCOOH, a halo-, alkoxy- or OH-substd. aromatic monocarboxylic acid or an aromatic tri- or tetracarboxylic acid. The stabiliser suppresses decompsn. of (I) during storage.</p> |
