O,O-Diethyl-S-hydrogen phosphorodithioate
O,O'-diethyl dithiophosphate
CAS: 298-06-6
Molecular Formula: C4H11O2PS2
O,O-Diethyl-S-hydrogen phosphorodithioate - Names and Identifiers
| Name | O,O'-diethyl dithiophosphate |
| Synonyms | PTGER2 Diethylphosphorodithioate O,O'-diethyl dithiophosphate O,O-Diethyl phosphorodithioate Diethyl Phosphorodithioic Acid Diethyl phosphorodithioic acid o,o-diethylthiolothionophosphate o,o-diethylphosphorodithioicacid o,o-diethylhydrogenphosphorodithioate 2,3-Epoxypropyl-2-Methoxyphenyl Ether Dithiophosphoric acid O,O-diethyl ester O,O-diethyl hydrogen phosphorodithioate o,o-diethyl-s-hydrogenphosphorodithioate lead(2+) bis(O,O-diethyl dithiophosphate) O,O-Diethyl-S-hydrogen phosphorodithioate Anti-PTGER3, N-Terminal antibody produced in rabbit |
| CAS | 298-06-6 |
| EINECS | 206-055-9 |
| InChI | InChI=1/2C4H11O2PS2.Pb/c2*1-3-5-7(8,9)6-4-2;/h2*3-4H2,1-2H3,(H,8,9);/q;;+2/p-2 |
O,O-Diethyl-S-hydrogen phosphorodithioate - Physico-chemical Properties
| Molecular Formula | C4H11O2PS2 |
| Molar Mass | 186.23 |
| Density | 1.11g/mLat 25°C(lit.) |
| Boling Point | 60°C1mm Hg(lit.) |
| Flash Point | 181°F |
| Water Solubility | 330g/L at 25℃ |
| Solubility | 330g/l |
| Vapor Presure | 60Pa at 57℃ |
| BRN | 507407 |
| pKa | -0.10±0.34(Predicted) |
| PH | 0.8 (100g/l, H2O, 20℃) |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.512(lit.) |
| Physical and Chemical Properties | Density 1.11 boiling point 60°C (1 mmHg) refractive index 1.512 flash point 181 °F |
O,O-Diethyl-S-hydrogen phosphorodithioate - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 3265 8/PG 2 |
| WGK Germany | 3 |
| RTECS | TD7350000 |
| FLUKA BRAND F CODES | 10-13-23 |
| HS Code | 29209090 |
| Hazard Class | 8 |
| Packing Group | III |
O,O-Diethyl-S-hydrogen phosphorodithioate - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | O,O-diethyldithiophosphate is abbreviated as ethyl sulfide, which is also an important pesticide intermediate and can be used to prepare organophosphorus pesticides such as phorate, terbutyrofos, and phosphorus, etc., and another organophosphorus intermediate O,O-diethylthiophosphoryl chloride can be synthesized by chlorination. This product is a pesticide intermediate, used to prepare phorate and ethyl rice Fengsan and other pesticides. O,O-diethyldithiophosphate is chlorinated to obtain O,O-diethylthiophosphoryl chloride, which is also a pesticide intermediate and is used to synthesize parathion, internal phosphorus absorption, phosphorus control, phoxim, 1605, 1059 and Suhua 203, etc. |
| Production method | It is obtained by the reaction of ethanol and phosphorus pentasulfide. Ethyl sulfide is obtained by the reaction of anhydrous ethanol and phosphorus pentasulfide. The content of the product obtained by the original process is 85% ~ 87%, and the yield is about 85%. The new process uses catalysts to greatly improve the yield and product quality. The process is as follows: phosphorus pentasulfide is added to the mother liquor of the previous batch of sulfide under stirring according to a certain proportion, an appropriate amount of catalyst is added, anhydrous alcohol is added under reduced pressure, the temperature is controlled at 50-65 ℃ (the highest is not more than 80 ℃), the product is added within 15-25min, the heat preservation reaction is continued at 50-65 ℃ for 10-20min, then the product is cooled below 45 ℃, let stand, and the product is discharged. The hydrogen sulfide gas generated in the reaction is absorbed with lye. The yield is 90% ~ 92%, and the product content is 91% ~ 93%. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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