Mevinphos (ISO) Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
FARBLOSE BIS GELBE FLüSSIGKEIT
CHEMISCHE GEFAHREN
Die Substanz zersetzt sich beim Erhitzen unter Bildung von giftigen und ätzenden Rauchen mit Phosphorsäure und Phosphoroxiden. Reagiert sehr heftig mit starken Oxidationsmitteln. Feuer- und Explosionsgefahr. Greift Eisen, Edelstahl, Messing, einige Arten von Kunststoff, Gummi und Beschichtungen an.
ARBEITSPLATZGRENZWERTE
TLV: 0.01 mg/m?(als TWA); Krebskategorie A4 (nicht klassifizierbar als krebserzeugend für den Menschen); BEI vorhanden (ACGIH 2008).
MAK: 0.093 mg/m?Spitzenbegrenzung: überschreitungsfaktor II(2) (DFG 2008 ).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation des Aerosols, über die Haut und durch Verschlucken.
INHALATIONSGEFAHREN
Beim Verdampfen bei 20°C kann schnell eine gesundheitsschädliche Kontamination der Luft eintreten.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Cholinesterasehemmer. Möglich sind Auswirkungen auf das Nervensystem mit Krämpfen und Atemversagen. Exposition weit oberhalb der Arbeitsplatzgrenzwerte kann zum Tod führen. Die Auswirkungen treten u.U. verzögert ein. ärztliche Beobachtung notwendig.
LECKAGE
Persönliche Schutzausrüstung: Chemikalienschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät. NICHT in die Umwelt gelangen lassen. Ausgelaufene Flüssigkeit in abdichtbaren Behältern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen.
R-Sätze Betriebsanweisung:
R27/28:Sehr giftig bei Berührung mit der Haut und beim Verschlucken.
R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
R67:Dämpfe können Schläfrigkeit und Benommenheit verursachen.
R65:Gesundheitsschädlich: kann beim Verschlucken Lungenschäden verursachen.
R38:Reizt die Haut.
R11:Leichtentzündlich.
S-Sätze Betriebsanweisung:
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
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.
S62:Bei Verschlucken kein Erbrechen herbeiführen. Sofort ärztlichen Rat einholen und Verpackung oder dieses Etikett vorzeigen.
Beschreibung
Pure mevinphos is a colourless liquid, while technical grade mevinphos is a pale yellow
liquid with a very mild odour. It is soluble in water but very soluble in alcohols,
ketones, chlorinated hydrocarbons, aromatic hydrocarbons, and many organic solvents.
It is both an insecticide and acaricide. The U.S. EPA grouped mevinphos as an
RUP, and hence it should be purchased and used only by certified and trained pesticide
applicators. It is not registered for use in many countries including the United States.
Mevinphos is used to control a broad spectrum of insects, including aphids, grasshoppers,
leaf-hoppers, cutworms, caterpillars, and many other insects on a wide range of
field, forage, vegetable, and fruit crops. It is also an acaricide that kills or controls mites
and ticks. It acts quickly both as a contact insecticide, acting through direct contact
with target pests, and as a systemic insecticide, which becomes absorbed by plants on
which insects feed.
Chemische Eigenschaften
Mevinphos is a pale yellow to orange highboiling
liquid. Weak odor. The carrier solvent may change
the physical properties listed here.
Verwenden
Mevinphos is a pesticide used in the protection of crops. Insecticide.
Allgemeine Beschreibung
Pale yellow to orange liquid, with a weak odor. Used as an insecticide and acaricide on vegetables, alfalfa, deciduous fruits and nuts.
Air & Water Reaktionen
Hydrolyzes rapidly as MEVINPHOS dissolves in water.
Reaktivität anzeigen
Organophosphates, such as MEVINPHOS, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
Hazard
Toxic by ingestion, inhalation, and skinabsorption; use may be restricted; cholinesteraseinhibitor. Questionable carcinogen.
Health Hazard
MEVINPHOS is super toxic; the probable oral lethal dose for humans is less than 5 mg/kg, or a taste (less than 7 drops) for a 150-lb. person. It has direct and immediate effects whether it is swallowed, inhaled, or absorbed through the skin.
Brandgefahr
Fire may produce irritating or poisonous gases. Runoff from fire control may give off poisonous gases and also cause pollution. When heated to decomposition, MEVINPHOS emits toxic fumes of phosphorus oxides. Avoid strong oxidizers. Avoid temperatures above 77-86F, sources of heat, fire, free flames or spark-generating equipment.
Landwirtschaftliche Anwendung
Insecticide, Acaricide: Mevinphos is an organophosphate insecticide used
to control a broad spectrum of insects, including aphids,
grasshoppers, leafhoppers, cutworms, caterpillars, and
many other insects on a wide range of field, forage, vegetable,
and fruit crops. It is also an acaricide that kills or
controls mites and ticks. It acts quickly both as a contact
insecticide, acting through direct contact with target pests,
and as a systemic insecticide which becomes absorbed by
plants on which insects feed. Not approved for use in EU
countries. Not registered for use in the U.S.
Handelsname
AI3-22374®; APAVINPHOS®; CASWELL
No. 160B®; CENTURY-CIDE®[C]; COMPOUND
2046®; DURHAM®[C]; EXCELCIDE®[C]; GESFID®;
GESTID®; PD 5®; HELENA PHOSDRIN®[C]
Kontakt-Allergie
Sensitization to mevinphos (also named Duraphos,
Phosdrin, and Phosfene), an organophosphate cholinesterase
inhibitor that is used as an insecticide, was
rarely reported.
Sicherheitsprofil
Poison by ingestion,
inhalation, skin contact, subcutaneous,
intravenous, and intraperitoneal routes.
Human systemic effects by ingestion:
peripheral motor nerve recording changes.
An insecticide. When heated to
decomposition it emits toxic fumes of POx.
mögliche Exposition
Those engaged in the manufacture,
formulation, and application of this super toxic contact and
systemic insecticide and acaricide.
Environmental Fate
Plant. In plants, mevinphos is hydrolyzed to phosphoric acid dimethyl ester, phosphoric
acid and other less toxic compounds (Hartley and Kidd, 1987). In one day, the compound
is almost completely degraded in plants (Cremlyn, 1991). Casida et al. (1956) proposed
two degradative pathways of mevinphos in bean plants and cabbage. In the first degradative
pathway, cleavage of the vinyl phosphate bond affords methylacetoacetate and acetoacetic
acid which may be precursors to the formation of the end products dimethyl phosphoric
acid, methanol, acetone and carbon dioxide. In the other degradative pathway, direct
hydrolysis of the carboxylic ester would yield vinyl phosphates as intermediates. The halflife
of mevinphos in bean plants was 12 hours (Casida et al., 1956). In alfalfa, the halflife
was 17 hours (Huddelston and Gyrisco, 1961).
Chemical/Physical. The reported hydrolysis half-lives of cis-mevinphos and transmevinphos
at pH 11.6 are 1.8 and 3.0 hours, respectively (Casida et al., 1956). The
volatility half-lives for the cis and trans forms at 28°C were 21 and 24 hours, respectively
(Casida et al., 1956). Worthing and Hance (1991) reported that at pH values of 6, 7, 9 and
11, the hydrolysis half-lives were 120 days, 35 days, 3.0 days and 1.4 hours, respectively
(Worthing and Hance, 1991).
Emits toxic phosphorus oxide fumes when heated to decomposition (Lewis, 1990).
Versand/Shipping
UN3018 Organophosphorus pesticides, liquid,
toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
UN2783 Organophosphorus pesticides, solid, toxic, Hazard
Class: 6.1; Labels: 6.1-Poisonous material.
Inkompatibilitäten
Decomposes in heat (below boiling point
@ 300℃) producing phosphoric acid and phosphorous oxides
fumes. Strong oxidizers may cause release of toxic phosphorus
oxides. Organophosphates, in the presence of strong
reducing agents such as hydrides, may form highly toxic and
flammable phosphine gas. Keep away from alkaline materials.
Corrosive to cast iron, some stainless steels and brass.
Attacks some forms of plastics, rubber and coatings.
Waste disposal
Mevinphos is 50% hydrolyzed
in aqueous solutions at an unspecified temperature in
1.4 hours at pH 11, 35 days at pH 7; and 120 days at pH 6.
Thermal decomposition is rapidly accomplished by lime
sulfur. Mevinphos may also incinerated. In accordance with
40CFR165, follow recommendations for the disposal of
pesticides and pesticide containers. Must be disposed properly
by following package label directions or by contacting
your local or federal environmental control agency, or by
contacting your regional EPA office.
Mevinphos (ISO) Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
