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Hydramethylnon Molecule of the Week

-Kayla Eaton Feb 27, 2012. Hydramethylnon Molecule of the Week. Structure:. Physical Appearance: Dark yellow crystalline solid. Chemical Formula: C25 H24 F6 N4 Molecular Mass: 494.475 grams Melting Point: 190 Degrees Celsius.

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Hydramethylnon Molecule of the Week

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  1. -Kayla EatonFeb 27, 2012 HydramethylnonMolecule of the Week

  2. Structure:

  3. Physical Appearance:Dark yellow crystalline solid.Chemical Formula:C25 H24 F6 N4Molecular Mass: 494.475 gramsMelting Point:190 Degrees Celsius

  4. Solubility in Water:0.006 ppm(at 20 degrees Celsius)*No information regardingdensity could be found on Hydramethylnon.

  5. Short History. • Hydramethylnon was allowed to be used first by the United States in 1908 by the Environmental Protection Agency. • It’s in a lot of different pesticides. (Chemicals used to get rid of pests, such a cockroaches, ants, silverfish…etc.) • People were using this to control the populations of pests, some listed above.

  6. Health Effects. • Practically harmless to mammals. • Reduces reproductive rate. • Possible carcinogen in animals, further testing is needed… • It kills insects by disrupting energy production in their cells.

  7. Toxicity • Hydramethylnon is EXTREMELY toxic to silverfish. • It is a slow-acting poison to insects; this is useful so the pests will bring it back to the colony to share with others of it’s kind before dying.

  8. Toxicity • It needs to be ingested in order to be highly toxic. • Research has shown that when it comes in contact with animal’s skin, it maycause irritation; also it’s practically nontoxic when inhaled. (simple allergic reactions, to both of these, nothing deadly…) • However, when researchers studied the ingestion of Hydramethylnon, the following occurred (these tests were done on rats.) • Decrease in appetite and activity. • Weight loss. • Salivation and bloody noses. • Difficulties with coordination and balance.

  9. * This chart shows how Hydramethylnon is more/less toxic depending on how it is used.

  10. Toxicity Cont… • Directly quoted from http://npic.orst.edu/factsheets/hydragen.pdf. • “LD50/LC50: A common measure of acute toxicity is the lethal dose (LD50) or lethal concentration (LC50) that causes death (resulting from a single or limited exposure) in 50 percent of the treated animals. LD50 is generally expressed as the dose in milligrams (mg) of chemical per kilogram (kg) of body weight. LC50 is often expressed as mg of chemical per volume (e.g., liter (l)) of medium (i.e., air or water) the organism is exposed to. Chemicals are considered highly toxic when the LD50/LC50 is small and practically non-toxic when the value is large. However, the LD50/LC50 does not reflect any effects from long-term exposure(i.e., cancer, birth defects, or reproductive toxicity) that may occur at levels below those that cause death.” • In other words… The less exposure, the more toxic. In large quantities, Hydramethylnon is less toxic.

  11. Products that contain Hydramethylnon: • Combat • Maxforce • Seige • Amdro • Sensible

  12. Cites • http://portal.acs.org/portal/acs/corg/content?_nfpb=true&_pageLabel=PP_ARTICLEMAIN&node_id=841&content_id=CNBP_029311&use_sec=true&sec_url_var=region1&__uuid=da351099-bdef-4825-a4f8-088c3c6e222b • http://www.wolframalpha.com/entities/chemical_molecular_weights/what_is_the_molecular_weight_of_hydramethylnon%3F/68/1p/if/ • http://sitem.herts.ac.uk/aeru/footprint/en/Reports/386.htm • http://npic.orst.edu/factsheets/hydratech.pdf

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