Dioxathion
- S,S'-(1,4-Dioxane-2,3-diyl) O,O,O',O'-tetraethyl-bis-(phosphorodithioate)
- p-Dioxane-2,3-diyl ethyl phosphorodithioate
Dioxathion | |
| |
| Formula | C12H26O6P2S4 |
| Structure | |
| Description | Tan liquid (technical grade is brown). |
| Uses | Insecticide, acaricide. |
| Registry Numbers and Inventories. | |
| CAS | 78-34-2 |
| EC (EINECS/ELINCS) | 201-107-7 |
| EC Index Number | 015-063-00-X |
| EC Class | Very toxic; Toxic |
| RTECS | TE3350000 |
| RTECS class | Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Human Data |
| UN (DOT) | 3018 |
| Merck | 12,3355 |
| Beilstein/Gmelin | 96128 |
| Beilstein Reference | 5-19-03-00142 |
| EPA OPP | 37801 |
| Swiss Giftliste 1 | G-1582 |
| Properties. | |
| Formula | C12H26O6P2S4 |
| Formula mass | 456.55 |
| Melting point, °C | -20.0 |
| Boiling point, °C | 502 |
| Vapor pressure, mmHg | 1E-9 (25 C) |
| Density | 1.257 g/cm3 (20 C) |
| Solubility in water | Insoluble |
| Viscosity | 117 cp @ 25C |
| Refractive index | 1.542 (20 C) |
| Partition coefficient, pKow | 4.96 |
| Heat of vaporization | 74.4 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage. |
| Handling | All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood. |
| Protection | Wear appropriate protective gloves, clothing and goggles. |
| Respirators | Wear positive pressure self-contained breathing apparatus (SCBA). |
| Small spills/leaks | (Non-Specific -- Organophosphorus Pesticide, Liquid, n.o.s.) Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Ventilate closed spaces before entering them. Remove and isolate contaminated clothing at the site. Do not touch spilled material; stop leak if you can do so without risk. Use water spray to reduce vapors. Small spills: absorb with sand or other noncombustible absorbent material and place into containers for later disposal. Large spills: dike far ahead of spill for later disposal. |
| Stability | Stable in water at neutral ph, but hydrolysed by alkali or on heating. Unstable to iron or tin surfaces or when mixed with certain carriers. |
| Incompatibilities | May react with iron or tin surfaces. |
| Fire. | ||||
| Flash Point,°C | 258 | |||
| Fire fighting | (Non-Specific -- Organophosphorus Pesticide, Liquid, n.o.s.) Stay upwind; keep out of low areas. Ventilate closed spaces before entering them. Wear positive pressure breathing apparatus and special protective clothing. Remove and isolate contaminated clothing at the site. Move container from fire area if you can do so without risk. Fight fire from maximum distance. Dike fire control water for later disposal; do not scatter the material.(Non-Specific -- Organophosphorus Pesticide, Liquid, n.o.s.) Small fires: dry chemical, carbon dioxide, water spray, or foam. Large fires: water spray, fog or foam. | |||
| Fire potential | Non-flammable | |||
| Hazards | Containers may explode when heated. | |||
| Combustion products | Fire may produce irritating, corrosive and/or toxic gases. | |||
| Health. | |
| Exposure limit(s) | TLV: ppm; 0.2 mg/m3 (as TWA) (skin) (ACGIH 1997). NIOSH REL: TWA 0.2 mg/m3 skin |
| Poison_Class | 2 |
| Exposure effects | Fever, low heart rate and abnormally low blood pressure, or rapid heart rate and elevated blood pressure may occur. Headache, dizziness, muscle spasms and profound weakness are common. Alterations of level of consciousness, anxiety, paralysis, seizures and coma may occur. Seizures may be more common in children. |
| Ingestion | Nausea, vomiting, diarrhea, fecal incontinence and abdominal pain may occur. |
| Inhalation | Dyspnea, rales, bronchorrhea, or tachypnea may be noted. Pulmonary edema may occur in severe cases. |
| Skin | Sweating is a consistent but not universal sign. |
| Eyes | See Skin. |
First aid |
|
| Ingestion | Seek medical assistance. |
| Inhalation | Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. |
| Skin | Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. |
| Eyes | Immediately flush with running water for at least 20 minutes. |
| Transport. | ||
| UN number | 3018 | |
| Response guide | 152 | |
| Hazard class | 6.1 | |
| Packing Group | I; II; III | |
| USCG CHRIS Code | DXT | |