Cyan(3-phenoxybenzyl)methyl-2-(4-chlorphenyl)-3-methylbutyrat

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H301：Giftig bei Verschlucken.

  H315：Verursacht Hautreizungen.

  H319：Verursacht schwere Augenreizung.

  H335：Kann die Atemwege reizen.

  H410：Sehr giftig für Wasserorganismen mit langfristiger Wirkung.

• Sicherheit

  P261：Einatmen von Staub vermeiden.

  P264：Nach Gebrauch gründlich waschen.

  P264：Nach Gebrauch gründlich waschen.

  P273：Freisetzung in die Umwelt vermeiden.

  P301+P310：BEI VERSCHLUCKEN: Sofort GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.

  P302+P352：BEI BERÜHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckmäßig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.

  P305+P351+P338：BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

Fenvalerate Chemische Eigenschaften,Einsatz,Produktion Methoden

• ERSCHEINUNGSBILD

  GELBEODER BRAUNE, VISKOSE FLüSSIGKEIT.

• CHEMISCHE GEFAHREN

  Zersetzung beim Erhitzen zwischen 150-300°C unter Bildung giftiger Rauche mit Cyanwasserstoffund Chlorwasserstoff. Reagiert mit starken Basen und starken Oxidationsmitteln.

• ARBEITSPLATZGRENZWERTE

  TLV nicht festgelegt (ACGIH 2005).
  MAK nicht festgelegt (DFG 2005).
  

• AUFNAHMEWEGE

  Aufnahme in den Körper durch Inhalation des Aerosols und durch Verschlucken.

• INHALATIONSGEFAHREN

  Nur ungenügende Angaben vorhanden über die Geschwindigkeit, mit der eine gesundheitsschädliche Konzentration in der Luft beim Verdampfen bei 20°C erreicht wird.

• WIRKUNGEN BEI KURZZEITEXPOSITION

  WIRKUNGEN BEI KURZZEITEXPOSITION:
  Die Substanz reizt die Augen, die Haut und die Atemwege. Möglich sind Auswirkungen auf das Nervensystem.

• WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION

  Wiederholter oder andauernder Kontakt kann zu Hautsensibilisierung führen.

• LECKAGE

  Persönliche Schutzausrüstung: Atemschutzfilter für organische Gase und Dämpfe. NICHT in die Umwelt gelangen lassen. Ausgelaufene Flüssigkeit möglichst in abdichtbaren Behältern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen.

• R-Sätze Betriebsanweisung:

  R25:Giftig beim Verschlucken.
  R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
  R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
  R57:Giftig für Bienen.

• S-Sätze Betriebsanweisung:

  S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
  S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
  S60:Dieses Produkt und sein Behälter sind als gefährlicher Abfall zu entsorgen.
  S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.

• Beschreibung

  Fenvalerate is a yellow-brown viscous liquid that is practically soluble in water. It is stable to moderate heat and light and is rapidly hydrolysed in basic environments (above pH 8). Fenvalerate is a racemic mixture of four stereoisomers in equal proportions owing to the presence of two chiral centres. It is a synthetic type II pyrethroid.
  Fenvalerate is registered as an insecticide for a wide array of crop uses, as well as a termiticide and insect repellent.

• Chemische Eigenschaften

  It is an ester of 2-(4-chlorophenyl)-3-methylbutyric acid and alpha-cyano-3-phenoxybenzyl alcohol but lacks a cyclopropane ring. However, in terms of its insecticidal behaviour, it belongs to the pyrethroid insecticides. Technical grade fenvalerate is a yellow or brown viscous liquid having a specific gravity of 1.175 at 25°C. The vapour pressure is 0.037 mPa at 25°C, and it is relatively non-volatile. It is practically insoluble in water (approximately 2 μg/L) but soluble in organic solvents such as acetone, xylene, and kerosene. It is stable to light, heat, and moisture but unstable in alkaline media.

• Chemische Eigenschaften

  Yellowish to brown viscous liquid. Also available as an emulsifiable concentrate, which is corrosive. Technical grade is a brown viscous liquid. Faint chemical odor. Boiling point = decomposes.

• Verwenden

  Insecticide used against a wide variety of pests.

• Verwenden

  An insecticide, used to control insects from food crops, animal feed and cotton products.

• Verwenden

  Fenvalerate controls a wide range of insect pests in fruit, vines, olives, hops, nuts, vegetables, cotton, oilseed rape, sunflowers, alfalfa, cereals, maize, sorghum, potatoes, beets, soyabeans, tobacco, sugar cane and ornamentals. It is also used in public health situations and in animal houses.

• Definition

  ChEBI: A carboxylic ester obtained by formal condensation between 2-(4-chlorophenyl)-3-methylbutyric acid and cyano(3-phenoxyphenyl)methanol.

• Allgemeine Beschreibung

  A clear viscious yellow liquid with a mild odor. Used as broad spectrum insecticide.

• Air & Water Reaktionen

  Insoluble in water. Rapidly hydrolyzed by alkaline solution.

• Reaktivität anzeigen

  A pyrethroid. Phenvalerate is an ester and nitrile. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. Nitriles may polymerize in the presence of metals and some metal compounds. They are incompatible with acids; mixing nitriles with strong oxidizing acids can lead to extremely violent reactions. Nitriles are generally incompatible with other oxidizing agents such as peroxides and epoxides. The combination of bases and nitriles can produce hydrogen cyanide. Nitriles are hydrolyzed in both aqueous acid and base to give carboxylic acids (or salts of carboxylic acids).

• Hazard

  Questionable carcinogen.

• Kontakt-Allergie

  Fenvalerate is an insecticide of the synthetic pyrethroid group, which induced sensitization in farmers.

• Sicherheitsprofil

  Poison by ingestion, intravenous, and intracerebral routes. Moderately toxic by skin contact.Experimental reproductive effects. Mutation data reported. Highly toxic to fish and bees. Corrosive, causes eye damage. A skin irritant. When heated to decomposition it emits toxic fumes of Cl-, NOx, and CN-. See also CYANIDE.

• mögliche Exposition

  Fenvalerate is one of the most versatile synthetic pyrethroid insecticides. It is mostly used in agriculture and on cattle, but also in homes and gardens. It acts as a stomach poison against a wide variety of leaf and fruit eating such as bollworm fruit and shoot borers and aphids. Crops on which it is used include cotton, cauliflower, okra, vines and fruits. It is also used in public health and animal husbandry. It is effective against pests whose strains are resistant to organochlorine, organophosphorus, and carbamate insecticides. Not used in EU countries

• Environmental Fate

  Soil. Fenvalerate is moderately persistent in soil. The percentage of the initial dosage (1 ppm) remaining after 8 weeks of incubation in an organic and mineral soil were 58 and 12%, respectively, while in sterilized controls 100 and 91% remained, respectively (Chapman et al., 1981).
  In a sugarcane runoff plot, fenvalerate was applied at a rate of 0.22 kg/ha 4 times each year in 1980 and 1981. Runoff losses in 1980 and 1981 were 0.08 and 0.56 of the applied amount, respectively (Smith et al., 1983).
  Plant. Dislodgable residues of fenvalerate on cotton leaf 0, 24, 48, 72 and 96 hours after application (0.22 kg/ha) were 0.85, 0.36, 0.38, 0.28 and 0.28 μg/m2, respectively (Buck et al., 1980).
  Surface Water. In an estuary, the half-life of fenvalerate was 27–42 days (Schimmel et al., 1983).
  Chemical/Physical. Undergoes hydrolysis at the ester bond (Hartley and Kidd, 1987). Decomposes gradually at 150–300°C (Windholz et al., 1983) probably releasing toxic fumes of nitrogen and chlorine.

• Stoffwechselwegen

  After foliar treatment of 14C-fenvalerate on wheat plants, the amount of residual radioactivity in the grain and hull is below the limit of reliable measurement. Individual degradation products accounting for more than 1% of the applied radioactivity are not present in the foliage or straw. Important degradation pathways include decarboxylation and ester cleavage.

• Versand/Shipping

  UN3349 Pyrethroid pesticide, solid toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous material. UN3352 Pyrethroid pesticide, liquid toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

• Toxicity evaluation

  Acute oral LD₅₀ for rats: 151 mg/kg

• Degradation

  Fenvalerate is relatively stable at pH 5 and 7 (half-lives of 130-220 days), while at pH 9.0 it undergoes ester hydrolysis (half-life of about 65 days), resulting in the formation of 2-(4-chlorophenyl)-3-methylbutyric acid (CPIA, 2) as a major degradation product. Esfenvalerate and fenvalerate showed no significant difference in hydrolysis rate in water; however, esfenvalerate underwent epimerisation in the alcohol moiety under alkaline and neutral aqueous conditions (ICPS, 1990).
  Fenvalerate, underwent rapid photodegradation under the action of UV light with a half-life of 16-18 min in methanol, hexane, or acetonitrile/ water (60/40). 2-(3-Phenoxyphenyl)-3-(4-chlorophenyl)methylpentanenitrile (decarboxy-fenvalerate) (3) was the major photoproduct, amounting to 54-57% of the total reaction mixture. There were smaller amounts of the dechlorinated analogue of decarboxy-fenvalerate (3) and the dimer of 2,2-dimethyl-4-chlorostyrene3,- phenoxybenzoyl cyanide, 4-chloroisobutylbenzene, 2,2-dimethyl-4-chlorostyrene, 3-phenoxybenzyl cyanide, its dimer, 1,2-bis(phenoxyphenyl)ethane, CPIA (Z), 3-phenoxybenzoic acid (3PBA) (4) and 1-(4-chlorophenyl)-2-methylpropano(lH olmstead et al., 1978). The products are shown in Scheme 1.
  The photodegradation of fenvalerate in water and on soil was investigated using several ¹⁴C-labelled preparations. On exposure to sunlight, fenvalerate was rapidly decomposed in distilled water, 2% aqueous acetone, filter-sterilised river water or sea water to almost the same extent. The half-lives were approximately 4 days in summer and 13-15 days in winter. On soil surfaces, the rate of photodegradation was dependent on the soils used, the half-lives being 2-18 days. One of the major photodegradation products was decarboxy-fenvalerate (3). Other major products were 3PBA (4) and CPIA (2), derived from the ester bond cleavage, amounting to 43% and 58%, respectively, of the applied radioactivity after 6 weeks. In addition, small amounts of a-carbamoyl-3-phenoxybenzyl 2-(4-chloropheny)-3-methylbutyrate(CONH₂-fenvalerate) (5), α-carboxy-3-phenoxybenyl 2-(4-chlorophenyl)-3-methylbutyrate( CONH₂-fenvalerate) (6), 3-phenoxybenzyl cyanide, 3-phenoxyphenylacetamide and Sphenoxyphenylacetic acid were formed (Mikami et al., 1980). Traces of 3-phenoxybenzaldehyde (3PBAl) (7) and 3-phenoxybenzyl alcohol (3PBalc) (8) (shown in Scheme 2) were also formed.

• Inkompatibilitäten

  ncompatible with oxidizers, chlorates nitrates, peroxides, sulfuric acid, caustics, ammonia, aliphatic amines, alkanolamines, isocyanates, alkylene oxides, epichlorohydrin. Moisture may cause hydrolysis or other forms of decomposition. Emulsifiable concentrate is corrosive

• Waste disposal

  Incineration would be an effective disposal procedure where permitted. If an efficient incinerator is not available, the product should be mixed with large amounts of combustible material and contact with the smoke should be avoided. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers

• Einzelnachweise

  [1] http://www.toxipedia.org
  [2] Y. Xia, Q. Bian, L. Xu, S. Cheng, L. Song, J. Liu, W. Wu, S. Wang and X. Wang, Genotoxic effects on human spermatozoa among pesticide factory workers exposed to fenvalerate, Toxicology, 2004, vol. 203, 49-60
  [3] Terry R Roberts, David H Hutson, Philip W Lee, Peter H Nicholls and Jack R Plimmer, Metabolic Pathways of Agrochemicals: Part 2: Insecticides and Fungicides, 1999

Fenvalerate Upstream-Materialien And Downstream Produkte

Cyan(3-phenoxybenzyl)methyl-2-(4-chlorphenyl)-3-methylbutyrat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(300)Suppliers

51630-58-1, Fenvalerate Verwandte Suche: