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121-75-5 Insecticides Malathion 95%TC 25%WP 50%WP 40%EC 50%EC 57%EC 50% 95%ULV

Shenzhen Agroland Chemicals Co., Ltd.
Shenzhen Agroland Chemicals Co., Ltd.
City: Shenzhen
Province/State: Guangdong
Country/Region: China
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121-75-5 Insecticides Malathion 95%TC 25%WP 50%WP 40%EC 50%EC 57%EC 50% 95%ULV

Brand Name : AGROLAND
Model Number : 95%TC,25%WP, 50%WP, 40%EC, 50%EC, 57%EC, 50% 95%ULV
Certification : ICAMA SGS C/O
Place of Origin : CHINA
Payment Terms : L/C, T/T
Packaging Details : As per customer's request; 10mL~ 200L for liquid formulations, 1g ~25kg for solid formulations
Pesticide : Insectide
Formulation : 95%TC,25%WP, 50%WP, 40%EC, 50%EC, 57%EC, 50% 95%ULV
Color : yellow ,blue
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121-75-5 Insecticides Malathion 95%TC 25%WP 50%WP 40%EC 50%EC 57%EC 50% 95%ULV


Malathion


CAS #: 121-75-5

Categories: Insecticides

Description:

NOMENCLATURE
Common name: malathion; maldison; malathon; mercaptothion; carbofos; mercaptotion
IUPAC name: diethyl (dimethoxythiophosphorylthio)succinate; S-1,2-bis(ethoxycarbonyl)ethyl O,O-dimethyl phosphorodithioate
Chemical Abstracts name: diethyl [(dimethoxyphosphinothioyl)thio]butanedioate

PHYSICAL CHEMISTRY
Composition: Tech. grade is c. 95% pure.

Mol. wt.: 330.3; M.f.: C10H19O6PS2;

Form: Tech. is a clear, amber liquid.

M.p.: 2.85C; B.p.: 156-157C/0.7 mmHg.

V.p.: 5.3 mPa (30C).

KOW: logP = 2.75;

Henry: 1.21x10-2 Pa m3 mol-1 (calc.)

S.g./density: 1.23 (25C).

Solubility: In water 145 mg/l (25C). Miscible with most organic solvents, e.g. alcohols, esters, ketones, ethers, aromatic hydrocarbons. Slightly soluble in petroleum ether and some types of mineral oil.

Stability: Relatively stable in neutral, aqueous media. Decomposed by strong acids and by alkali; hydrolysis DT50 107 d (pH 5), 6 d (pH 7), 0.5 d (pH 9) (all 25C).

F.p.: 163C (Pensky-Martens closed cup).

COMMON NAME

Malathion 45%EC

CAS NO


121-75-5

CATEGORY

Insecticide

FORMULATION

45%EC

PACKING

1L bottle, 5L bottle, 20L bottle or 200L drum

APPLICATION

Malathion is a low toxicity, broad-spectrum insecticide, and miticide with contact and stomach toxicity. It also has the function of fumigation. It is fast-acting and high efficient.

Malathion can be used for prevention and treatment of rice, wheat, cotton, vegetables, tea, fruit tree pests such as aphids, planthoppers, rice leafhoppers, rice thrips, Ping borer, scale insects, red spider, gold shells, leaf miner, leaf-hop insects, cotton leaf-roller moth, stick insects, vegetables borer, tea leafhopper, fruit borer.

Malathion is widely used in agriculture and horticulture and can also be used for family.

SPECIFICATION

APPEARANCE

Buff transparent liquid

CONTENT

450g/L

Acidity, %

0.01

Moisture, %

0.2

Emulsion dilution stability(200 times)

Up to FAO standard




APPLICATIONS
Biochemistry: Cholinesterase inhibitor; proinsecticide, activated by metabolic oxidative desulfuration to the corresponding oxon.
Mode of action: Non-systemic insecticide and acaricide with contact, stomach, and respiratory action.
Uses: Used to control Coleoptera, Diptera, Hemiptera, Hymenoptera and Lepidoptera in a wide range of crops, including cotton, pome, soft and stone fruit, potatoes, rice and vegetables. Used extensively to control major arthropod disease vectors (Culicidae) in public health programmes, ectoparasites (Diptera, Acari, Mallophaga) of cattle, poultry, dogs and cats, human head and body lice (Anoplura), household insects (Diptera, Orthoptera), and for the protection of stored grain. Typical application rates for agricultural uses 0.5-1.25 kg/ha.
Phytotoxicity: Non-phytotoxic in general, if used as recommended, but glasshouse cucurbits and beans, certain ornamentals, and some varieties of apple, pear, and grape may be injured.
Formulation types: DP; EC; EW; UL; WP.ULV
Compatibility: Incompatible with alkaline materials (residual toxicity may be decreased).

MAMMALIAN TOXICOLOGY
Oral: Acute oral LD50 for rats 1375-5500 mg/kg (pure), mice 775-3320 mg/kg.
Skin and eye: Acute percutaneous LD50 (24 h) for rabbits 4100-8800, rats >2000 mg/kg.
Inhalation: LC50 (4 h) for rats >5.2 mg/l.
NOEL: In 2 y trials on rats, the only effects seen at 500 ppm (29 mg/kg b.w. daily) was inhibition of cholinesterase in plasma and red blood cells.
ADI: 0.3 mg/kg b.w.
Toxicity class: WHO (a.i.) III; EPA (formulation) III (Fyfanon tech. and 5 EC)
EC hazard: Xn; R22

ECOTOXICOLOGY
Birds: Dietary LC50 (5 d) for bobwhite quail 3500, ring-necked pheasants 4320 mg/kg diet.
Fish: LC50 (96 h) for bluegill sunfish 0.1, largemouth bass 0.28 mg/l.
Daphnia: EC50 (48 h) 1.0 ug/l.
Algae: EC50 (72 h) 13 mg/l.
Bees: Toxic to bees. LD50 (topical) 0.71 ug/bee.
Worms: LC50 613 mg/kg soil.

ENVIRONMENTAL FATE
Animals: In mammals, following oral administration, the major part of the dose is excreted in the urine and faeces within 24 hours. Degradation is by oxidative desulfuration by liver microsomal enzymes, leading to the formation of malaoxon; malathion and malaoxon are hydrolysed and thus detoxified by carboxylesterases. In insects, metabolism involves hydrolysis of the carboxylate and phosphorodithioate esters, and oxidation to malaoxon.
Plants: De-esterified to its mono- and di- carboxylic acids, which are cleaved to yield succinic acid, which is subsequently incorporated into plant constituents.
Soil/Environment: Under normal conditions, it is 99% degraded by hydrolysis within 7 d.


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