Substance profile
Dioxathion
Dioxathion is a tan liquid.
01 · Identification
What Dioxathion is
Dioxathion is a tan liquid. Its molecular formula is C12H26O6P2S4 and its molecular weight is 456.5 g/mol. It melts at -20 °C.
Under the GHS it carries the signal word Danger.
Other names for Dioxathion
- dioxathion (ISO)
- 1,4-dioxan-2,3-diyl-O,O,O',O'-tetraethyl di(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 |
|---|---|
| H330 | Fatal if inhaled. |
| 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: P260, P270, P271, P273, P280, P301, P302, P304, P310, P330, P352, P391, P501
03 · Physical and chemical properties
Dioxathion 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 | 63.89 °C (147 °F) | range, midpoint shown, at 0.5 mmHg (reduced pressure) | CAMEO |
| Melting point | -20 °C (-4 °F) | HSDB | |
| Density | 1.257 g/cm³ | at 26 °C | HSDB |
| 1.26 g/cm³ | at 26 °C | ICSC | |
| Solubility | PRACTICALLY INSOL IN WATER; PARTLY SOL IN HEXANE | HSDB | |
| 10 G/KG HEXANE, KEROSENE | HSDB | ||
| SOL IN AROMATIC HYDROCARBONS, ETHERS, ESTERS, & KETONES | HSDB | ||
| Vapor pressure | 17.8 mmHg | OSHA | |
| 17.8 mmHg | at 25 °C | CAMEO | |
| 9e-8 mmHg | Haz-Map | ||
| Lower explosive limit (LEL) | Noncombustible Liquid | NIOSH |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Dioxathion
Storage conditions
STORAGE: ...MUST BE STORED IN ITS SEALED ORIGINAL CONTAINERS, IN WELL-AIRED, FRESH & DRY STOREHOUSES OR IN SHADED & POSSIBLY WELL-AIRED PLACES. IT IS RECOMMENDED THAT THE PRODUCT'S TEMP...NOT EXCEED 25-30 °C, & KEEP...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. /DIMETHOATE/
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Alkalis, iron or tin surfaces, heat.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
DIOXATHION is heat sensitive. This chemical may react with iron or tin surfaces. It may be hydrolyzed by strong acids or alkalis. (NTP, 1992). Organophosphates 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 Dioxathion in the storage compatibility matrix →