Methomyl

Methomyl Struktur
16752-77-5
CAS-Nr.
16752-77-5
Bezeichnung:
Methomyl
Englisch Name:
Methomyl
Synonyma:
Metomil;methylthio-1-ethylidenamino methylcarbamate;LANNATE;Harubado;1-(METHYLTHIO)-ETHYLIDENEAMINOMETHYLCARBAMATE;2-methylthio-propionaldehyd-o-(methylcarbamoyl)oxim;KUIK;lanox;DUNET;NUDRIN
CBNumber:
CB1259124
Summenformel:
C5H10N2O2S
Molgewicht:
162.21
MOL-Datei:
16752-77-5.mol

Methomyl Eigenschaften

Schmelzpunkt:
78°C
Siedepunkt:
144°C
Dichte
d424 1.2946
Dampfdruck
0Pa at 20℃
Brechungsindex
1.6430 (estimate)
storage temp. 
0-6°C
Löslichkeit
Chloroform: Slightly Soluble,Methanol: Slightly Soluble
pka
13.27±0.46(Predicted)
Aggregatzustand
solid
Wasserlöslichkeit
Soluble. 5.8 g/100 mL
Merck 
13,6012
BRN 
3081564
Expositionsgrenzwerte
NIOSH REL: TWA 2.5 mg/m3; ACGIH TLV: TWA 2.5 mg/m3.
Stabilität:
Stable. Incompatible with strong bases, strong oxidizing agents.
InChIKey
UHXUZOCRWCRNSJ-QPJJXVBHSA-N
LogP
0.11 at 25.2℃
CAS Datenbank
16752-77-5(CAS DataBase Reference)
NIST chemische Informationen
Methomyl(16752-77-5)
EPA chemische Informationen
Methomyl (16752-77-5)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher T+;N,N,T+,Xn,F,Xi
R-Sätze: 28-50/53-36-20/21/22-11-36/37/38
S-Sätze: 1/2-22-36/37-60-61-45-16-36-26-28
RIDADR  UN 2757
OEB B
OEL TWA: 2.5 mg/m3
WGK Germany  3
RTECS-Nr. AK2975000
HazardClass  6.1(a)
PackingGroup  II
HS Code  29309090
Giftige Stoffe Daten 16752-77-5(Hazardous Substances Data)
Toxizität LD50 orally in male rats: 17 mg/kg (Kaplan, Sherman)
Bildanzeige (GHS) GHS hazard pictogramsGHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H300 Lebensgefahr bei Verschlucken. Akute Toxizität oral Kategorie 2 Achtung GHS hazard pictogramssrc="/GHS06.jpg" width="20" height="20" /> P264, P270, P301+P310, P321, P330,P405, P501
H410 Sehr giftig für Wasserorganismen mit langfristiger Wirkung. Langfristig (chronisch) gewässergefährdend Kategorie 1 Warnung GHS hazard pictogramssrc="/GHS09.jpg" width="20" height="20" /> P273, P391, P501
Sicherheit
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P270 Bei Gebrauch nicht essen, trinken oder rauchen.
P273 Freisetzung in die Umwelt vermeiden.
P301+P310 BEI VERSCHLUCKEN: Sofort GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
P391 Verschüttete Mengen aufnehmen.
P405 Unter Verschluss aufbewahren.

Methomyl Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

WEISSE KRISTALLE MIT CHARAKTERISTISCHEM GERUCH.

CHEMISCHE GEFAHREN

Zersetzung beim Erhitzen und Verbrennen unter Bildung giftiger und ätzender Rauche mit Stickstoffoxiden, Schwefeloxiden, Cyanwasserstoff und Methylisocyanat. Reagiert mit starken Basen.

ARBEITSPLATZGRENZWERTE

TLV: 2.5 mg/m?(als TWA); Krebskategorie A4 (nicht klassifizierbar als krebserzeugend für den Menschen); BEI vorhanden; (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).

AUFNAHMEWEGE

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

INHALATIONSGEFAHREN

Beim Verdampfen bei 20°C tritt eine gesundheitsschädliche Kontamination der Luft nicht oder nur sehr langsam ein , viel schneller jedoch beim Versprühen oder Dispergieren.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt die Augen. Möglich sind Auswirkungen auf das Nervensystem mit nachfolgenden Krämpfen und Atemdepression. Cholinesterasehemmer. Exposition weit oberhalb der Arbeitsplatzgrenzwerte kann zum Tod führen.

WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION

Möglich sind Auswirkungen auf das Blut mit nachfolgender Blutarmut.

LECKAGE

Persönliche Schutzausrüstung: Atemschutzgerät, P3-Filter für giftige Partikel. NICHT in die Umwelt gelangen lassen. Verschüttetes Material in abdichtbaren Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgfältig sammeln. An sicheren Ort bringen.

R-Sätze Betriebsanweisung:

R28:Sehr giftig beim Verschlucken.
R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
R36:Reizt die Augen.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
R11:Leichtentzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-Sätze Betriebsanweisung:

S1/2:Unter Verschluss und für Kinder unzugänglich aufbewahren.
S22:Staub nicht einatmen.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
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.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S16:Von Zündquellen fernhalten - Nicht rauchen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.

Beschreibung

Acetamide acid (methomyl) is a carbamate broad-spectrum insecticide. Methomyl is classified as a restricted use pesticide (RUP). It is a crystalline solid with a slight sulphurous odour and very soluble in methanol, acetone, ethanol, and isopropanol. It decomposes with heat and releases hazardous gases/vapours, such as sulphur oxides, methyl isocyanate, and HCN. Acetamide acid (methomyl) is used both as a contact insecticide and as a systemic insecticide. It is used as an acaricide to control ticks and spiders; as fly bait; for foliar treatment of vegetable, fruit, field crops, cotton, and commercial ornamentals; and in and around poultry houses and dairies.

Chemische Eigenschaften

Methomyl is a white crystalline solid with a slight sulfurous odor. A noncombustible solid, that may be dissolved in flammable liquids that may alter physical properties listed here.

Verwenden

Methomyl is a pesticide. This mixture of two stereoisomers is used as a foliar spary to control field crops, stables and poultry houses, and in glasshouses on ornamentals and vegetables, or in flypapers. Cases have been reported in chrysanthemum growers and in two women working in a plant nursery.

Definition

ChEBI: A carbamate ester obtained by the formal condensation of methylcarbamic acid with the hydroxy group of 1-(methylsulfanyl)acetaldoxime.

Allgemeine Beschreibung

White crystalline solid with slight sulfurous smell. Used as a nematocide, and an insecticide on vegetables, tobacco, cotton, alfalfa, soy beans, and corn.

Air & Water Reaktionen

Water soluble.

Reaktivität anzeigen

Methomyl is a carbamate ester. Carbamates are chemically similar to, but more reactive than amides. Like amides they form polymers such as polyurethane resins. Carbamates are incompatible with strong acids and bases, and especially incompatible with strong reducing agents such as hydrides. Flammable gaseous hydrogen is produced by the combination of active metals or nitrides with carbamates. Strongly oxidizing acids, peroxides, and hydroperoxides are incompatible with carbamates.

Hazard

Toxic by ingestion. Acetyl cholinesterase inhibitor, male reproductive damage, and hematologic effects. Questionable carcinogen.

Health Hazard

Methomyl has high oral toxicity, moderate inhalation toxicity and low skin toxicity. The probable oral lethal dose for humans is between 7 drops and 1 teaspoon for a 150 pound adult. Death is due to respiratory arrest.

Brandgefahr

When heated to decomposition, Methomyl emits very toxic fumes of nitrogen oxides and sulfur oxides. Do not subject liquid formulations to temperatures below 32F.

Landwirtschaftliche Anwendung

Insecticide, Acaricide: Methomyl is a broad-spectrum insecticide that is particularly effective against organophosphorus-resistant pests. It is used as an acaricide to control ticks and spiders. It is used for foliar treatment of vegetable, fruit and field crops, tobacco, cotton, commercial ornamentals, and in and around poultry houses and dairies. It is also used as a fly bait. Methomyl is effective as a “contact insecticide,” because it kills target insects upon direct contact, and also as a “systemic insecticide” because of its capability to cause overall “systemic” poisoning in target insects, after it is absorbed and transported throughout the pests that feed on treated plants. It is capable of being absorbed by plants without being “phytotoxic” or harmful, to the plant. A U.S. EPA restricted Use Pesticide (RUP).

Handelsname

ACINATE®; AGRINATE®; CIMETLE®; DuPont TM 1179®; FRAM FLY KILL®; FLYTEK®; IMPROVED BLUE MALRIN SUGAR BAIT®; IMPROVED GOLDEN MALRIN BAIT®; INSECTICIDE 1179®; KIPSIN®; KUIK®; LANNATE®; LANNOX®; LANOX 90®; LANOX 216®; METHOMEX®; METHOMYL® 20SC; MEMILENE®; METHAVIN®; NU-BAIT II®; NUDRIN®; PILLARMATE®; RENTOKILL®; RENTOKIL FRAM FLY BAIT®; RIDECT®; SD 14999®; SOREX GOLDEN FLY BAIT®; WL 18236®

Kontakt-Allergie

Methomyl is a pesticide agent, a carbamate insecticide with anticholinesterase activity. This mixture of two stereoisomers is used as a foliar spray to control field crops, in stables and poultry houses, and in glasshouses on ornamentals and vegetables, or in flypapers. Cases were reported in chrysanthemum growers and in two women working in a plant nursery

Sicherheitsprofil

Poison by ingestion, inhalation, and subcutaneous routes. Mildly toxic by skin contact. Wen heated to decomposition it emits very toxic fumes of NOx and SOx.

mögliche Exposition

Methomyl is a broad-spectrum insecticide used as insecticide in many vegetables, field crops; certain fruit crops; and ornamentals.
Incompatibilities: Keep away from strong bases, strong oxidizers. Heat causes decomposition forming toxic and irritating fumes including nitrogen oxides; sulfur oxides; hydrogen cyanide; methylisocyanate

Environmental Fate

Biological. From the first-order biotic and abiotic rate constants of methomyl in estuarine water and sediment/water systems, the estimated biodegradation half-lives were 75–165 and 39–134 days, respectively (Walker et al., 1988).
Soil. Harvey and Pease (1973) reported that methomyl dissipated rapidly in fine sand and loamy sand soils. One month following application to a Delaware soil, 1.8% of the applied dosage was recovered and after 1 year, methomyl was not detected. T
Groundwater. According to the U.S. EPA (1986) methomyl has a high potential to leach to groundwater.
Plant. The reported half-lives of methomyl on cotton plants, mint plants and Bermuda grass were 0.4–8.5, 0.8–1.2 and 2.5 days, respectively (Willis and McDowell, 1987).
Chemical/Physical. Emits toxic fumes of nitrogen and sulfur oxides when heated to decomposition (Sax and Lewis, 1987; Lewis, 1990).

Lager

Acetamidic acid (methomyl) should be kept stored in a sealed container in a cool (below 0 ° C), dry, area with adequate ventilation. The chemical should be kept away from incompatible chemical substances, strong oxidizing agents, strong bases, other pesticides, and food or feed.

Versand/Shipping

UN2757 Carbamate pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required

Waste disposal

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal. Alkaline hydrolysis leads to complete degradation to nontoxic products. May be dissolved in water and sprayed into a furnace with effluent gas scrubbing also. 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.

Vorsichtsmaßnahmen

Occupational workers should avoid contact of acetamidic acid (methomyl) with the skin, eyes, or clothing, and avoid exposures to vapor or mist. Workers should be careful when storing and/or disposing of acetamidic acid, avoid the dust contaminating water, food, or feed by storage or disposal. Workers should use respiratory protection: Government approved respirator. Hand Protection: Compatible chemical-resistant gloves. Eye Protection: Chemical safety goggles.chemical safety goggles.

Methomyl Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte

16752-77-5(Methomyl)Verwandte Suche:


  • lannabait
  • lannate lb
  • LANNATE(R)
  • lanox
  • Lanox 216
  • lanox 90
  • Insecticide 1179
  • KUIK
  • PILARMATE
  • Nu-bait II
  • NUDRIN
  • S-METHYL-N-[(METHYLCARBAMOYL)OXY]-THIOACETIMIDATE
  • 2-Methylthio-acetaldehyd-O-(methylcarbamoyl)-oxime
  • 2-methylthio-propionaldehyd-o-(methylcarbamoyl)-oxim
  • 3-Thiabutan-2-one, O-(methylcarbamoyl)oxime
  • 3-thiabutan-2-one,o-(methylcarbamoyl)oxime
  • 5-methylN-(methylcarbamoyloxy)thioacetimidate
  • Acetimidic acid, N-[(methylcarbamoyl)oxy]thio-, methyl ester
  • Acetimidic acid, thio-N-((methylcarbamoyl)oxy)-, methyl ester
  • Acetimidothioic acid, methyl-, N-(methylcarbamoyl) ester
  • dpx-x1179-412
  • Du Pont Insecticide 1179
  • dupontinsecticide1179
  • ENT 27,341
  • methomyl00
  • Methyl (1E)-N-([(methylamino)carbonyl]oxy)ethanimidothioate
  • Methyl N-(((methylamino)carbonyl)oxy)ethanimidothioate
  • Methyl N-[(Methylcarbamoyl)oxy]thioacetimidate
  • Methyl O-(methylcarbamoyl)thiolacethohydroxamate
  • Methyl O-(methylcarbamoyl)thiolacetohydroxamate
  • Methyl O-(methylcarbamyl)thiolacetohydroxamate
  • methyl-acetimidothioicacin-(methylcarbamoyl)ester
  • methyln-(((methylamino)carbonyl)oxy)ethanimidothioate
  • methyln-((methylamino)carbonyl)oxy)ethanimido)thioate
  • methyl-n-((methylcarbamoyl)oxy)thioacetimidate
  • methyln-((methylcarbamoyl)oxy)thioacetimidate
  • METHOMYL PESTANAL
  • METHOMYL, 1GM, NEAT
  • METHOMYL, 250MG, NEAT
  • methomyl (bsi,iso,ansi,esa,jmaf)
  • 1-(methylmercapto) aminomethyl ethylidene, carbamate
  • 1-(METHYLMERCAPTO) AMINOMETHYL ETHYLIDENE, CARBAMATE/METHOMYL
  • METHOMYL 98%TC
  • S-METHYL-N-((METHYLCARBAMOYL)-OXYL)-THIOACETIMIDATE
  • S-Methyl-n-[(methylamino carboxyl)-oxygen]thio acetamide
  • Methomyl Solution, 100ppm
  • Methomyl E.C.
  • 1-(methylthio) ethylideneamino-N-methylcarbamate
  • N-[(Methylcarbamoyl)oxy]ethanimidothioic acid methyl
  • Methyl N-[[(methylamino)carboxyl]oxy]ethanimidothioate
  • Chebi:6835
  • Methyl N-(methylcarbamoyloxy)ethanimidothioate
  • 1-(methylthio)acetaldehydeo-methylcarbamoyloxime
  • 1n-x1179-412
  • 2-methylthio-acetaldehyd-o-(methylcarbamoyl)-oxim
  • Methomyl (ISO)
  • methomyl 1-(methylthio)ethylideneamino N-methylcarbamate
  • Thiobutan-2-one, O-(methylcarbamoyl)oxime
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