Diethylphosphorodithioate
- CAS NO.：298-06-6
- Empirical Formula: C4H11O2PS2
- Molecular Weight: 186.23
- MDL number: MFCD00004825
- EINECS: 206-055-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:25:41
What is Diethylphosphorodithioate?
Chemical properties
Diethylphosphorodithioate is a colorless oily liquid, and the industrial grade is a brown liquid. It is flammable, has a foul odor, soluble in water and organic solvents, decomposes at high temperature, and highly corrosive.
The Uses of Diethylphosphorodithioate
Diethylphosphorodithioate is an important pesticide intermediate, which can be used for the preparation of organophosphorus pesticides such as phorate, terbution, phosphine, etc.
Definition
ChEBI: Diethyl dithiophosphate is an organic thiophosphate.
Synthesis
Diethylphosphorodithioate was prepared by phosphorus pentasulfide stirred in absolute ethanol at 50～65℃ for 30-45min.
Properties of Diethylphosphorodithioate
| Melting point: | <0°C |
| Boiling point: | 60 °C1 mm Hg(lit.) |
| Density | 1.11 g/mL at 25 °C(lit.) |
| vapor pressure | 60Pa at 57℃ |
| refractive index | n |
| Flash point: | 181 °F |
| storage temp. | 2-8°C |
| solubility | 330g/l |
| form | Oil |
| pka | -0.10±0.34(Predicted) |
| color | Pale Gray to Very Dark Brown |
| PH | 0.8 (100g/l, H2O, 20℃) |
| Water Solubility | 330g/L at 25℃ |
| BRN | 507407 |
| Stability: | Hygroscopic |
| CAS DataBase Reference | 298-06-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Phosphorodithioic acid, o,o'-diethyl ester(298-06-6) |
| EPA Substance Registry System | O,O-Diethyl dithiophosphate (298-06-6) |
Safety information for Diethylphosphorodithioate
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H400:Hazardous to the aquatic environment, acute hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Diethylphosphorodithioate
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