DIALIFOS Chemical Properties
- Melting point:
- Boiling point:
- 465.9±55.0 °C(Predicted)
- 1.435±0.06 g/cm3(Predicted)
- Flash point:
- 100 °C
- storage temp.
- Water Solubility
- 0.18mg/L(temperature not stated)
- EPA Substance Registry System
- Dialifor (10311-84-9)
DIALIFOS Usage And Synthesis
Dialifor is a crystalline solid. The commercial product may also be available as a colorless oil.
Nonsystemic insecticide and acaricide to control chewing and sucking insects and spider mites on a wide variety of fruits and vegetables.
White crystalline solid, also reported as a colorless oil, colorless. Used as an insecticide and acaricide (kills beetles, ticks, mites, etc.).
Releases nitrogen oxides, sulfur oxides, and phosphorus oxides when heated. Readily hydrolyzed by concentrated alkali. Avoid alkali. [EPA, 1998]. Organophosphates, such as DIALIFOS, 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.
DIALIFOS can cause serious symptoms and in extreme cases death by respiratory arrest.
Highly toxic by all routes of exposure;exhibits acute, delayed, and chronic effect;cholinesterase inhibitor; symptoms of poi-soning are similar to those of parathion,including weakness and twitching of mus-cle, headache, giddiness, dizziness, excessivesalivation, lacrimation, tightness in chest,blurred vision, slurred speech, mental confu-sion, and drowsiness; gastrointestinal effectsinclude nausea, vomiting, stomach cramps,and diarrhea; heavy exposure can lead to dif-ficulty in breathing, convulsions, and coma;median lethal doses reported in the literatureshow inconsistent and varying values.
LD50 oral (rat): 5–53 mg/kg
LD50 oral (mouse): 39–65 mg/kg
LD50 oral (rabbit): 35 mg/kg
LD50 skin (rabbit): 145 mg/kg.
Releases nitrogen oxides, sulfur oxides, and phosphorus oxides when heated. Readily hydrolyzed by concentrated alkali. Avoid alkali.
Poison by ingestion and skin contact. An experimental teratogen. Other experimental reproductive effects. When heated to decomposition it emits toxic fumes of SOx, POx, and NOx.
A potential danger to those involved in the manufacture, formulation and application of this insecticide.
Chemical/Physical. Though no products were identified, the hydrolysis half-lives at 20°C were 15 days and 14 hours at pH 6.1 and pH 7.4, respectively (Freed et al., 1979, 1979a).
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Strong bases. Contact with oxidizers may cause the release of phosphorous oxides. Contact with strong reducing agents, such as hydrides, may cause the formation of flammable and toxic phosphine gas.
Alkaline hydrolysis or incineration. In accordance with 40CFR165, follow recom- mendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following pack- age label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.
- O,O-Diethyl S-methyl dithiophosphate
- Ammonium O,O-dimethyl dithiophosphate
- O,O-Diethyl Dithiophosphate AMMoniuM Salt