Dimethyl dithiophosphoric acid
From Infogalactic: the planetary knowledge core
| 200px | |
| Names | |
|---|---|
| IUPAC name
Dimethoxy-sulfanyl-sulfanylidene-λ5-phosphane
|
|
| Other names
O,O-Dimethyl dithiophosphoric acid; Dimethyl dithiophosphate; Dimethyl phosphorodithioate; Dimethyl ester of phosphorodithioic acid
|
|
| Identifiers | |
| 756-80-9 | |
| ChemSpider | 12419 |
| EC Number | 212-053-9 |
| Jmol 3D model | Interactive image |
| PubChem | 12959 |
|
|
|
|
| Properties | |
| C2H7O2PS2 | |
| Molar mass | 158.17 g·mol−1 |
| Appearance | colorless liquid |
| Boiling point | 62–64 °C (144–147 °F; 335–337 K) 0.5 mm Hg |
| Vapor pressure | {{{value}}} |
|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
|
| Infobox references | |
Dimethyl dithiophosphoric acid is the organophosphorus compound with the formula (CH3O)2PS2H. It is the processor for production of the organothiophosphate insecticide Malathion. Although samples can appear dark, the compound is a colorless, distillable liquid.[1]
It is prepared by treating phosphorus pentasulfide with methanol:[2]
- P2S5 + 4 CH3OH → 2 (CH3O)2PS2H + H2S
References
<templatestyles src="Reflist/styles.css" />
Cite error: Invalid <references> tag; parameter "group" is allowed only.
<references />, or <references group="..." />- ↑ J. Svara, N. Weferling, T. Hofmann "Phosphorus Compounds, Organic" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2006. doi:10.1002/14356007.a19_545.pub2
- ↑ Lefferts, J. L.; Molloy, K. C.; Zuckerman, J. J.; Haiduc, I.; Guta, C.; Ruse, D., "Oxy and thio phosphorus acid derivatives of tin. 1. Triorganotin(IV) dithiophosphate esters", Inorganic Chemistry 1980, volume 19, 1662-1670. doi:10.1021/ic50208a046
