Name | Temephos |
Synonyms | Difos Bithion cl52160 CL 52160 Temephos Difenthos Difenphos Diphos (Pesticide) bis-p-(o,o-dimethylo-phenylphosphorothioate)sulfide |
CAS | 3383-96-8 |
EINECS | 222-191-1 |
Molecular Formula | C16H20O6P2S3 |
Molar Mass | 466.47 |
Density | 1.3200 |
Melting Point | 30-31°C |
Boling Point | 518.5±60.0 °C(Predicted) |
Water Solubility | 0.003 g/100 mL |
Vapor Presure | 9.5×10-6Pa (20-25 °C) |
Appearance | solid |
Merck | 13,9214 |
BRN | 1896901 |
Storage Condition | 2-8°C |
Risk Codes | R21/22 - Harmful in contact with skin and if swallowed. R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S22 - Do not breathe dust. S37 - Wear suitable gloves. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. |
UN IDs | UN 3077 |
WGK Germany | 3 |
RTECS | TF6890000 |
Hazard Class | 6.1 |
Packing Group | III |
Toxicity | LD50 in male, female rats (mg/kg): 8600, 13000 orally (Gaines) |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Background | dithiophos (abate) is a low toxic organophosphorus pesticide. According to reports, dithiophos can be used to control the damage to cotton, grain and other crops thrips, rolling leaf moth, armyworm, Bean and other pests. The effect on mosquito larvae (Midge) is particularly prominent, and it has become the best medicine for controlling Midge at home and abroad. The sample was synthesized by domestic Tianjin pesticide factory in 1971, and its superiority was confirmed by experiments in the Institute of Zoology, Chinese Academy of Sciences, Qinhuangdao health and epidemic prevention station and other relevant units in 1972. |
uses | dithiophos is an organophosphate larvicidal agent used to treat water filled with disease-transmitting insects, including mosquitoes, diptera, a larva of the black fly, Temefos affects the central nervous system by inhibiting cholinesterase, causing the larvae to die before reaching adulthood. |
biological activity | Temefos is an organophosphate larvicidal agent used to treat water filled with disease-transmitting insects, including mosquitoes, diptera, a larva of the black fly, Temefos affects the central nervous system by inhibiting cholinesterase, causing the larvae to die before reaching adulthood. |
production method | obtained by reacting dimethoxythiophosphoryl chloride with BIS (p-hydroxyphenyl) sulfide. |
category | pesticide |
toxicity grade | high toxicity |
Acute toxicity | oral-rat LD50: 1000 mg/kg; Oral-mouse LD50: 223 mg/kg |
flammability hazard characteristics | toxic sulfur oxide and phosphorus oxide gases from combustion |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
extinguishing agent | dry powder, foam, sand |
Occupational Standard | TLV-TWA 10 mg/m3 |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |