Substance profile
Fensulfothion
Fensulfothion is a brown liquid.
01 · Identification
What Fensulfothion is
Fensulfothion is a brown liquid. Its molecular formula is C11H17O4PS2 and its molecular weight is 308.4 g/mol. It boils at 440 °C, is soluble in water.
Under the GHS it carries the signal word Danger.
Other names for Fensulfothion
- fensulfothion (ISO)
- O,O-diethyl O-4-methylsulfinylphenyl 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 |
|---|---|
| H310 | Fatal in contact with skin. |
| H300 | Fatal if swallowed. |
| 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
Fensulfothion 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 | 440 °C (824 °F) | at 760 mmHg | DOE PAC |
| 139.44 °C (283 °F) | range, midpoint shown | OSHA | |
| 139.5 °C (283.1 °F) | range, midpoint shown, at 0.01 mmHg (reduced pressure) | HSDB | |
| Density | 1.2 g/cm³ | NIOSH | |
| 1.202 g/cm³ | CAMEO | ||
| 1.202 g/cm³ | at 20 °C | HSDB | |
| Solubility | SOLUBLE IN MOST ORGANIC SOLVENTS EXCEPT ALIPHATICS | HSDB | |
| WATER: 1.54 G/L @ 25 °C | at 25 °C | HSDB | |
| (77 °F): 0.2% | at 25 °C | NIOSH | |
| Vapor pressure | 0.00005 mmHg | at 25 °C | HSDB |
| 0.00005025 mmHg | at 25 °C | ICSC | |
| Lower explosive limit (LEL) | Combustible Liquid | NIOSH | |
| Corrosivity | Noncorrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Fensulfothion
Storage conditions
... MUST BE STORED IN SEALED ORIGINAL CONTAINERS, IN WELL-VENTILATED, FRESH, & DRY STOREHOUSES OR IN SHADED & POSSIBLY WELL-VENTILATED PLACES. IT IS RECOMMENDED THAT THE PRODUCT'S TEMP ... NOT EXCEED 25-30 °C, AND /THAT IT BE KEPT/ ... AWAY FROM SOURCES OF HEAT, FREE FLAMES OR SPARK-GENERATING EQUIPMENT. CONTAINERS MUST BE STACKED IN SUCH A WAY AS TO PERMIT FREE CIRCULATION OF AIR ... AT BOTTOM & INSIDE OF PILES. STORAGE AREAS MUST BE LOCATED AT SUITABLE DISTANCE FROM INHABITED BUILDINGS, ANIMAL SHELTERS, & FOOD STORES; MOREOVER, THEY MUST BE INACCESSIBLE TO UNAUTHORIZED PERSONS, CHILDREN, & DOMESTIC ANIMALS.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Alkalis
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
Organothiophosphates, such as FENSULFOTHION, 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 Fensulfothion in the storage compatibility matrix →