Substance profile
Edifenphos
Edifenphos is a yellow to light brown liquid with a characteristic odor.
01 · Identification
What Edifenphos is
Edifenphos is a yellow to light brown liquid with a characteristic odor. Its molecular formula is C14H15O2PS2 and its molecular weight is 310.4 g/mol. It melts at -25 °C.
Under the GHS it carries the signal word Danger.
Other names for Edifenphos
- edifenphos (ISO)
- O-ethyl S,S-diphenyl phosphorodithioate
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H331 | Toxic if inhaled. |
| H301 | Toxic if swallowed. |
| H312 | Harmful in contact with skin. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P261, P270, P271, P272, P273, P280, P301, P302, P304, P310, P312, P313, P330, P333, P352, P391, P501
03 · Physical and chemical properties
Edifenphos properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 154 °C (309.2 °F) | at 0.00750062 mmHg (reduced pressure) | HSDB |
| Melting point | -25 °C (-13 °F) | HSDB | |
| 25 °C (77 °F) | below this value | HMDB | |
| Density | 1.251 g/cm³ | at 20 °C | HSDB |
| Solubility | In water, 56 mg/l @ 20 °C | at 20 °C | HSDB |
| 0.056 mg/mL at 20 °C | at 20 °C | HMDB | |
| Vapor pressure | 2.7e-7 mmHg | at 25 °C | HSDB |
| 2.7e-7 mmHg | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on Edifenphos
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Solubility
In n-hexane 20-50, dichloromethane, isopropanol, toluene 200 (all in g/l, 20 °C). Readily soluble in methanol, acetone, benzene, xylene, carbon tetrachloride and dioxane. Sparingly soluble in heptane.
Source: HSDB
05 · Handling and storage
Storing and handling Edifenphos
Incompatible materials
Incompatible with alkaline materials.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check Edifenphos in the storage compatibility matrix →