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    Lambda-Cyhalothrin 10% WP

     

  • Product Specification
    • Name of the Product
    • Lambda-cyhalothrin 10% WP
    • Pack Shot
    • Lambda-cyhalothrin content
    • Lambda-cyhalothrin content 100 g/kg

    • Class
    • Synthetic pyrethroid
    • CAS Number
    • 91465-08-6
    • Empirical formula
    • C23H19ClF3NO3
    • Chemical name (IUPAC)
    • A reaction product comprising equal quantities of (S)- α-cyano-3-phenoxybenzyl (Z)-(1R,3R)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-
      dimethylcyclopropanecarboxylate and (R)-α-cyano-3-phenoxybenzyl (Z)-(1S,3S)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate

    • Structural formula
    • Structural formula of lambda-cyhalothrin
    • Molecular weight

    • 449.9

    • Description
    • The material shall consist of an homogeneous mixture of technical lambdacyhalothrin, complying with the requirements of WHO specification 463/TC (2003), together with filler(s) and any other necessary formulants. It shall be in the form of a fine powder free from visible extraneous matter and hard lumps.

      Where the material is packaged in sealed water soluble bags (Note 1), the material shall consist of a defined quantity of a lambda-cyhalothrin wettable powder, complying with the requirements of WHO specification 463/WP, contained in a sealed water soluble bag.

    • pH range
    • 5.5 to 9.0
    • Suspensibility
    • A minimum of 50 % of the lambda-cyhalothrin content found in suspension after 30 min in CIPAC Standard Water D at 30 ± 2°C.

    • Wet sieve test
    • Maximum: 2 % retained on a 75 µm test sieve.

    • Persistent Foam
    • Maximum: 60 ml after 1 min.

    • Wettability

    • The formulation shall be completely wetted in 1 min, without swirling.

    • Storage stability at elevated temperature
    • After storage at 54 ± 2°C for 14 days, the determined average active ingredient content must not be lower than 95%, relative to the determined average content found before storage and the formulation shall continue to comply with the clauses for:
      - pH range
      - wet sieve test
      - suspensibility
      - wettability

      In the case of water soluble bag packaging, the package should be enclosed in a watertight sachet, box or any other container, at 30°C for 18 weeks. The determined average active ingredient content must not be lower than 95% relative to the determined average content found before storage and the formulation shall continue to comply with the clauses for:

      - pH range
      - wet sieve test
      - dissolution of the bag
      - suspensibility
      - persistent foam

      None of the bags tested should show signs of leakage or rupture during normal handling, before and after storage.

    • Material packaged in a sealed water soluble bag

    • Dissolution of the bag
    • The dissolution of the bag shall be tested on a sample of the emptied and cleaned bag taken according to the procedure described, together with an appropriate proportion of the WP.

      Flow time of the suspension: maximum 30 sec.

      Wet sieve test.
    • Suspensibility
    • The suspensibility shall be tested on a suspension containing the WP and the bag material in the actual ratio of application, prepared according to the procedure described.

      A minimum of 50% shall be in suspension after 30 min in CIPAC Standard Water D at 30 ± 2°C.

    • Persistent foam
    • The persistent foam shall be tested on a suspension containing the WP and the bag in the actual ratio of application, prepared according to the procedure described.

      Maximum: 60 ml after 1 min.