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    Lambda-Cyhalothrin 10% Slow- Release CS

     

  • Product Specification
    • Name of the Product
    • Lambda-cyhalothrin 10% Slow- Release CS
    • Pack Shot
    • Class
    • Synthetic Pyrethroid
    • CAS Number
    • 91465-08-6
    • Empirical formula
    • C23H19ClF3NO3
    • Chemical Name
    • 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 a suspension of micro-capsules containing technical lambda-cyhalothrin, complying with the requirements of WHO specification 463/TC (2003), in an aqueous phase, together with suitable formulants. After agitation, the material shall be homogeneous and suitable for further dilution in water.
    • Active Ingredient
    • Total Lambda-cyhalothrin content
    • Lambda-cyhalothrin content 100 g/l (± 10% of the declared content).

    • "Free" ("non-encapsulated") lambda-cyhalothrin content
    • The “free” (“non-encapsulated”) lambda-cyhalothrin content shall not exceed 4% of the total lambda-cyhalothrin content.

    • Release of lambda-cyhalothrin
    • The release of lambda-cyhalothrin from the capsules shall be:
      at 15 min, 30 to 75% of that released at 180 min; and
      at 30 min, 50 to 90% of that released at 180 min; and
      at 180 min, a minimum of 80% of the total lambda-cyhalothrin content.

    • Physical properties
    • pH range (1% aqueous dispersion)
    • pH range: 4.5 to 9.0.
    • Pourability
    • Maximum “residue”: 5%.
    • Spontaneity of dispersion
    • A minimum of 90% of the lambda-cyhalothrin content shall be in suspension after 5 minutes in CIPAC standard water D at 30 ± 2°C.
    • Suspensibility

    • A minimum of 75% of the lambda-cyhalothrin content shall be in suspension after 30 minutes in CIPAC standard water D at 30 ± 20C.

    • Wet sieve test
    • A maximum of 0.1% w/w shall be retained on a 75 µm test sieve.

    • Persistent Foam
    • Maximum: 5 ml after 1 min.
    • Storage stability
    • Freeze/thaw stability
    • After undergoing 4 freeze/thaw cycles (between 20 ± 20C and -3 ± 20C in 18-hour freeze/6-hour thaw cycles) and following homogenization, the formulation shall continue to comply with the clauses for:
      pH range;
      pourability;
      spontaneity of dispersion;
      Suspensibility;
      Wet sieve test
    • Stability at elevated temperature
    • After storage at 54 ± 20C for 14 days, the determined average active ingredient content shall not be lower than 96% relative to the determined average content found before storage and the material shall continue to comply with the clauses for:
      “free” (“non-encapsulated”) lambda-cyhalothrin content;
      release of lambda-cyhalothrin;
      pH range;
      pourability;
      spontaneity of dispersion;
      suspensibility;
      Wet sieve test.