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  2. Mixing ratio - Wikipedia

    en.wikipedia.org/wiki/Mixing_Ratio

    Two binary solutions of different compositions or even two pure components can be mixed with various mixing ratios by masses, moles, or volumes. The mass fraction of the resulting solution from mixing solutions with masses m 1 and m 2 and mass fractions w 1 and w 2 is given by:

  3. Pesticide formulation - Wikipedia

    en.wikipedia.org/wiki/Pesticide_formulation

    [1] Formulation terminology follows a 2-letter convention: (e.g. GR: granules) listed by CropLife International (formerly GIFAP then GCPF) in the Catalogue of Pesticide Formulation Types (Monograph 2); see: download page. Some manufacturers do not follow these industry standards, which can cause confusion for users.

  4. Fipronil - Wikipedia

    en.wikipedia.org/wiki/Fipronil

    Fipronil (IUPAC name 5-amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-(trifluoromethylsulfinyl)pyrazole-3-carbonitrile [1]) is a white, solid powder with a moldy odor. It is degraded slightly by sunlight, stable at normal temperatures for one year, and is not stable in presence of metal ions .

  5. Diazinon - Wikipedia

    en.wikipedia.org/wiki/Diazinon

    According to the German Patent bureau, the industrial synthesis of diazinon is as follows: β-isobutyrylaminocrotonic acid amine was cyclized with NaOR (R is either a hydrogen or aliphatic chain of 1 to 8 carbons) in a mixture of 0 to 100% by weight of water and an alcohol having 1 to 8 carbon atoms, above 90°C (but below the boiling point of the mixture used).

  6. Rare emergency order issued to stop use of weed killer that ...

    www.aol.com/news/epa-bans-dacthal-common-weed...

    The EPA considered much of the data submitted by the company from 2013 to 2021 to be insufficient, and found that a required study looking into the weed killer's effects on thyroid development ...

  7. Mass fraction (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Mass_fraction_(chemistry)

    A solution with 1 g of solute dissolved in a final volume of 100 mL of solution would be labeled as "1%" or "1% m/v" (mass/volume). This is incorrect because the unit "%" can only be used for dimensionless quantities.

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