Substance profile
Fenitrothion
Fenitrothion is a yellow-brown liquid with a faint characteristic odor.
01 · Identification
What Fenitrothion is
Fenitrothion is a yellow-brown liquid with a faint characteristic odor. Its molecular formula is C9H12NO5PS and its molecular weight is 277.24 g/mol. It melts at 0.3 °C.
Under the GHS it carries the signal word Warning.
Other names for Fenitrothion
- fenitrothion (ISO)
- O,O-dimethyl O-4-nitro-m-tolyl phosphorothioate
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 |
|---|---|
| H302 | Harmful if swallowed. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P270, P273, P301, P312, P330, P391, P501
03 · Physical and chemical properties
Fenitrothion 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 | 118 °C (244.4 °F) | at 0.05 mmHg (reduced pressure) | HSDB |
| 117.78 °C (244 °F) | at 0.05 mmHg (reduced pressure) | CAMEO | |
| Melting point | 0.3 °C (32.5 °F) | HSDB | |
| 3.4 °C (38.1 °F) | HMDB | ||
| Density | 1.3 g/cm³ | ICSC | |
| 1.3227 g/cm³ | at 25 °C | HSDB | |
| 1.32 g/cm³ | at 25 °C | CAMEO | |
| Solubility | Readily soluble in dichloromethane, 2-propanol, toluene, hardly sol in n-hexane. | HSDB | |
| Readily soluble in alcohols, esters, ketones, aromatic hydrocarbons and chlorinated hydrocarbons. In hexane 24 g/L, isopropanol 138 g/L (20 °C) | at 20 °C | HSDB | |
| In water, 38.0 mg/L at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 0.000054 mmHg | at 20 °C | HSDB |
| 0.000006 mmHg | at 20 °C | CAMEO | |
| 0.000135 mmHg | at 20 °C | ICSC | |
| Flash point | 157 °C (314.6 °F) | ICSC | |
| 100 °C (212 °F) | above this value | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Fenitrothion
Storage conditions
Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Recommended storage temperature 2-8 °C Storage class (TRGS 510): Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatible materials: Strong oxidizing agents.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
Organophosphates, such as FENITROTHION, 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 Fenitrothion in the storage compatibility matrix →