DIALIFOS Chemical Properties

Melting point:

68℃

Boiling point:

465.9±55.0 °C(Predicted)

Density 

1.435±0.06 g/cm3(Predicted)

Flash point:

100 °C

storage temp. 

0-6°C

solubility 

Chloroform (Slightly), Ethyl Acetate (Slightly)

form 

solid

pka

-2.72±0.20(Predicted)

Water Solubility 

0.18mg/L(temperature not stated)

Merck 

13,2989

EPA Substance Registry System

Dialifor (10311-84-9)

Safety Information

Hazard Codes 

T+,N

Risk Statements 

24-28-50/53

Safety Statements 

28-36/37-45-60-61

RIDADR 

2783

RTECS 

TD5165000

HazardClass 

6.1(a)

PackingGroup 

I

Hazardous Substances Data

10311-84-9(Hazardous Substances Data)

Toxicity

LD50 in adult male, female rats (mg/kg): 24, 6 orally (Gaines, Linder)

DIALIFOS Usage And Synthesis

Description

Dialifor is a crystalline solid. The commercialproduct may also be available as a colorless oil. Molecularweight = 393.86; Freezing/Melting point (solid) = 68℃.Hazard Identification (based on NFPA-704 M RatingSystem): Health 3, Flammability 0, Reactivity 0. Insolublein water.Dialifor is a crystalline solid. The commercialproduct may also be available as a colorless oil. Molecularweight = 393.86; Freezing/Melting point (solid) = 68℃.Hazard Identification (based on NFPA-704 M RatingSystem): Health 3, Flammability 0, Reactivity 0. Insolublein water.

Chemical Properties

Dialifor is a crystalline solid. The commercial product may also be available as a colorless oil.

Uses

Insecticide; acaricide.

Uses

Nonsystemic insecticide and acaricide to control chewing and sucking insects and spider mites on a wide variety of fruits and vegetables.

Definition

ChEBI: Dialifor is a member of isoindoles.

General Description

White crystalline solid, also reported as a colorless oil, colorless. Used as an insecticide and acaricide (kills beetles, ticks, mites, etc.).

Reactivity Profile

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.

Health Hazard

DIALIFOS can cause serious symptoms and in extreme cases death by respiratory arrest.

Health Hazard

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.

Fire Hazard

Releases nitrogen oxides, sulfur oxides, and phosphorus oxides when heated. Readily hydrolyzed by concentrated alkali. Avoid alkali.

Safety Profile

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.

Potential Exposure

A potential danger to those involved in the manufacture, formulation and application of this insecticide.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin,remove contaminated clothing and wash immediately withsoap and water. Speed in removing material from skin is ofextreme importance. Shampoo hair promptly if contaminated.Seek medical attention immediately. If this chemical hasbeen inhaled, remove from exposure, begin rescue breathing(using universal precautions, including resuscitation mask) ifbreathing has stopped and CPR if heart action has stopped.Transfer promptly to a medical facility. When this chemicalhas been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Effects may be delayed; medicalobservation is recommended.

Environmental Fate

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).

storage

Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with dialiforyou should be trained on its proper handling and storage.Store in tightly closed containers in a cool, well-ventilatedarea away from strong bases.

Shipping

UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

Incompatibilities

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.

Waste Disposal

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.

DIALIFOS(10311-84-9)Related Product Information

• Succinimide
• Phosmet
• O,O-Diethyl S-methyl dithiophosphate
• Ammonium O,O-dimethyl dithiophosphate
• Dimethylphosphorodithioate
• N-(2-CHLOROETHYL)ACETAMIDE
• N-(2-CHLOROETHYL)BENZAMIDE
• O,O,S-TRIMETHYLDITHIOPHOSPHATE
• Diethylphosphorodithioate
• O,O-Diethyl Dithiophosphate AMMoniuM Salt
• N-BENZYL-N-(2-CHLOROETHYL)AMINE
• N-(2-CHLOROETHYL)PHTHALIMIDE
• DIALIFOS