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Carbaryl Insecticide

Posted at: Offers to Sell and Export | Posted on: Fri 18 Jun, 2010 7:22 am | Product Category: Insecticides [73]
 
carbaryl insecticide
Products Photos CatalogCarbaryl Insecticide Photos Catalog



Common name: carbaryl

IUPAC name: 1-naphthyl methylcarbamate


Chemical Abstracts name: 1-naphthalenyl

methylcarbamate

Cas rn: [63-25-2]

Physical chemistry

Composition: Tech. grade is 99% pure. Mol. wt.: 201.2; M.f.: C12H11NO2; Form: Colourless to light tan crystals. M.p.: 142 C; V.p.: 4.1x10-2 mPa (23.5 C); KOW: logP = 1.85; Henry: 7.39x 10-5 Pa m3 mol-1 (calc.) S.g./density: 1.232 (20 C); Solubility: In water 120 mg/l (20 C). Readily soluble in polar organic solvents. In dimethylformamide, dimethyl sulfoxide 400-450, acetone 200-300, cyclohexanone 200-250, isopropanol 100, xylene 100 (all in g/kg, 25 C). Stability: Stable under neutral and weakly acidic conditions. Hydrolysed in alkaline media to 1-naphthol; DT50 c. 12 d (pH 7), 3.2 h (pH 9). Stable to light and heat. F.p.: 193 C

Applications

Biochemistry: Weak cholinesterase inhibitor.

Mode of action: Insecticide with contact and stomach action, and slight systemic properties. Uses: Control of Lepidoptera, Coleoptera, and other chewing and sucking insects, at 0.25-2.0 kg a.i./ha, on more than 120 different crops, including vegetables, tree fruit (including citrus), mangoes, bananas, strawberries, nuts, vines, olives, okra, cucurbits, peanuts, soya beans, cotton, rice, tobacco, cereals, beet, maize, sorghum, alfalfa, potatoes, ornamentals, forestry, etc. Control of earthworms in turf. Used as a growth regulator for fruit thinning of apples. Also used as an animal ectoparasiticide.

Phytotoxicity: Non-phytotoxic if used as directed. Under certain conditions, some varieties of apple and pear may be injured.

Formulation types: DP; GR; OF; RB; SC; TK; WP.

Compatibility: Incompatible with alkaline materials such as Bordeaux mixture, lime, and lime sulfur.

Mammalian toxicology

Oral: Acute oral LD50 for rats 264, female rats 500, rabbits 710 mg/kg.

Skin and eye: Acute percutaneous LD50 for rats >4000, rabbits >2000 mg/kg. Slight eye irritant, mild skin irritant (rabbits).

Inhalation: LC50 (4 h) for rats 3.28 mg/l air.

NOEL: (2 y) for rats 200 mg/kg diet.

ADI: 0.003 mg/kg b.w.

Toxicity class: WHO (a.i.) II; EPA (formulation) I ('Tercyl' 85WP), II ('Sevin' 80S), III

EC hazard R40| Xn; R22| N; R50

Ecotoxicology

Birds: Acute oral LD50 for young mallard ducks >2179, young pheasants >2000, Japanese quail 2230, pigeons 1000-3000 mg/kg.

Fish: LC50 (96 h) for rainbow trout 1.3, sheepshead minnow 2.2, bluegill sunfish 10 mg/l.

Daphnia: LC50 (48 h) 0.006 mg/l.

Algae: EC50 (5 d) for Selenastrum capricornutum 1.1 mg/l.

Other aquatic spp.: LC50 (96 h) for mysid shrimp (Mysidopsis bahia) 0.0057 mg/l; LC50 (48 h) for Eastern oyster (Crassostrea virginica) 2.7 mg/l.

Bees: Toxic to bees; LD50 (topical) 1 g/bee.

Worms: LC50 (28 d ) 106-176 mg/kg soil.

Other beneficial spp.: Toxic to beneficial insects.

Environmental fate

Animals: In mammals, carbaryl does not accumulate in body tissues, but is rapidly metabolised to non-toxic substances, particularly 1-naphthol. This, together with the glucuronic acid conjugate, is eliminated predominantly in the urine and faeces. Metabolism of carbamate insecticides is reviewed.

Plants: Metabolites are 4-hydroxycarbaryl, 5-hydroxycarbaryl and methylol-carbaryl.

Soil/Environment: Under aerobic conditions, carbaryl at 1 ppm degraded with DT50 7-14 d in a sandy loam and 14-28 d in a clay loam.



Company Contact:

No member photo
Contact Name: Kevin Xu
Company Name: Shanghai Skyblue Chemical Co., Ltd.
Email: Email
Tel: 86-21-58356613
Fax: 86-21-58358362
Street Address: Rm 15A02, Changhang
Mansion, No.800, Zhangyang Road,
Pudong, Shanghai, 200122, China
Website: http://www.skybluechem.com
Member name: skybluechem
Country: China-CN China
Member Since: 17 June 2010
Total Leads: 76 skybluechem Import Export Business Leads
Business focus: Piperonyl Butoxide, D-allethrin, Diethyltoluamide, Cartap, Tetramethrin, Atrazine, Quizalofop-p-ethyl, Tribenuron-methyl, Acetochlor, Ametryn, Simazine
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Product Category: Insecticides [73]
 
 
 

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