Substance profile
Dialifor
Dialifor is a white crystalline solid; also reported as oil.
01 · Identification
What Dialifor is
Dialifor is a white crystalline solid; also reported as oil. It melts at 68 °C.
Under the GHS it carries the signal word Danger.
Other names for Dialifor
- dialifos (ISO)
- 2-chloro-1-phthalimidoethyl O,O-diethyl 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 |
|---|---|
| H300 | Fatal if swallowed. |
| H311 | Toxic in contact with skin. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P270, P273, P280, P301, P302, P310, P330, P352, P391, P501
03 · Physical and chemical properties
Dialifor 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 |
|---|---|---|---|
| Melting point | 68 °C (154.4 °F) | DOE PAC | |
| 68 °C (154.4 °F) | range, midpoint shown | HSDB | |
| 168 °C (334.4 °F) | range, midpoint shown | HSDB | |
| Solubility | Sol in aromatic hydrocarbons, ethers, esters, ketones | HSDB | |
| Very soluble in cyclohexanone; slightly soluble in aliphatic hydrocarbons, alcohols | HSDB | ||
| In acetone 760, isophorone 400, chloroform 620, xylene 570, diethyl ether 500, ethanol <10, hexane <10 (all in g/kg at 20 °C) | at 20 °C | HSDB | |
| Vapor pressure | 6.2e-8 mmHg | at 25 °C | HSDB |
| 997600 mmHg | at 35 °C | HSDB | |
| Corrosivity | NON-CORROSIVE | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Dialifor
Storage conditions
Store in tightly closed containers in a cool, well vented area away form strong bases.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Strong bases.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
Releases nitrogen oxides, sulfur oxides, and phosphorus oxides when heated. Readily hydrolyzed by concentrated alkali. Avoid alkali. [EPA, 1998]. Organophosphates, such as DIALIFOR, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Dialifor in the storage compatibility matrix →