nav Searchuser
Chemical Identification
Common Name
O,O-diethyl S-ethylthiomethyl phosphorodithioate
O,O-diethyl S-[(ethylthio)methyl] phosphorodithioate
Molecular Formula
Molecular Structure
Physical Properties
Molecular weight:260.4; Physical form:Colourless liquid ( tech.). Density:1.167 ( tech., 25 °C); Composition:Tech. phorate is >90% pure. Melting point:<-15 °C ( tech.); Flash point:>110 °C (Setaflash closed cup); Vapour pressure:85 mPa (25 °C); Henry constant:5.9 × 10-1 Pa m3 mol-1 (calc.); Partition coefficient(n-octanol and water):logP = 3.92; Solubility:In water 50 mg/l (25 °C). Miscible with alcohols, ketones, ethers, esters, aromatic, aliphatic and chlorinated hydrocarbons, dioxane, vegetable oils, and other organic solvents.; Stability:Stable under normal storage conditions for at least 2 years. Aqueous solutions degraded by light ( DT50 1.1 d); stability to hydrolysis optimum at pH 5-7, DT50 3.2 d.
Oral:Acute oral LD50 for male rats 3.7, female rats 1.6, mice c. 6 mg/kg. Percutaneous:Acute percutaneous LD50 for male rats 6.2, female rats 2.5, guinea pigs 20-30, male rabbits 5.6, female rabbits 2.9 mg/kg. Values for GR depend on a.i. content, carrier, test method and animal sp Inhalation: LC50 (1 h) for male rats 0.06, female rats 0.011 mg/l. Phytotoxicity:Phytotoxic to apples and tobacco. Phytotoxicity is possible in beet, carrots, beans, maize, an
Environmental Profile
Bees:Toxic to bees; LD50 (topical) 10µg/bee.Birds:Acute oral LD50 for mallard ducks 0.62, ring-necked pheasants 7.1 mg/ kg.Fish: LC50 (96 h) for rainbow trout 0.013, channel catfish 0.28 mg/l. 

Environmental fate: 
Animals:In animals, phorate is metabolically oxidised to the sulfoxide and sulfone, and their phosphorothioate analogues, followed by hydrolysis to dithio-, thio-, and orthophosphoric acids.Soil:In soil, metabolic oxidation gives the sulfoxide and sulfone, and their phosphorothioate analogues, and these then undergo hydrolysis, although the sulfone can persist under certain conditions (D. L. Suett, Pestic. Sci., 1975, 6,Plant:Degradation is similar to that in animals. WATER SOLUBILITY: 50 mg/l at 25°C .
Transport Information
Hazard Class:Ia(Extremely hazardous)

Porduct NewsMore

Phorate and acetochlor recommended to be listed in Annex III of the Rotterdam Convention

Phorate Acetochlor

Brazil Anvisa approves to ban two ais

Parathion-methyl Phorate

Related CompaniesMore

PI Industries Ltd

Country:  India

HPM Chemicals & Fertilizers Ltd.

Country:  India

Insecticides (India) Limited

Country:  India

Achem Co

Country:  SouthKorea