Phosphamidon

  • 2-Chloro-2-diethylcarbamoyl-1-methylvinyl dimethyl phosphate
  • 2-Chloro-3-(diethylamino)-1-methyl-3-oxo-1-propenyl dimethyl phosphate
  • Dimethyl phosphate ester 2-chloro-N,N-diethyl-3-hydroxycrotonamide
  • O,O-Dimethyl-o-(2-chloro-2-diethylcarbamoyl-1-methylvinyl) phosphate
Formula
C10H19ClNO5P
Structure
Description
Pale yellow oily liquid with a faint odor.
Uses
Insecticide, nematicide.

Registry Numbers and Inventories.
CAS
13171-21-6
EC (EINECS/ELINCS)
236-116-5
EC Index Number
015-022-00-6
EC Class
Very toxic; Toxic; Mutagenic Category 3; Dangerous for the Environment
RTECS
TC2800000
RTECS class
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector
UN (DOT)
3018
Merck
12,7493
Beilstein/Gmelin
2507755
EPA OPP
18201
Swiss Giftliste 1
G-1922
Austrailia AICS
Listed
Korea ECL
Listed

Properties.
Formula
C10H19ClNO5P
Formula mass
299.69
Melting point, °C
120 - 123
Boiling point, °C
356
Vapor pressure, mmHg
3E-5
Density
1.2132 g/cm3 (20 C)
Solubility in water
Insoluble
Refractive index
1.4718 (20 C)
Partition coefficient, pKow
1.23
Heat of vaporization
60.1 kJ/mol

Hazards and Protection.
Storage
It is packed in polyethylene containers.
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 a pesticide respirator jointly certified by the mining enforcement and safety administration and by the national institute for occupational safety and health. Wear natural rubber gloves, protective clothing, and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Caution : Explosion potential is high. Containers may explode in heat of fire. Highly toxic phosphorus oxides and chlorides may be emitted when phosphamidon is heated to decomposition. Avoid sources of extreme heat. (Non-Specific -- Organophosphorus Pesticide, Liquid, n.o.s.) Stay upwind; keep out of low areas. Ventilate closed spaces before entering them. 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
Isomeric mixt stable in neutral and acid media; half-life @ 23 C= 13.8 Days @ pH 7, 2.2 Days @ pH 10 decomp above 160 C e-isomer hydrolyzed by alkali.
Incompatibilities
Corrosive to iron, tin and aluminum Incompatible with alkaline preparations and should not be mixed with copper oxychloride, captan, folpet or sulfur.

Fire.
Flash Point,°C
169
Fire fighting
(Non-Specific -- Organophosphorus Pesticide, Liquid, n.o.s.) Stay upwind; keep out of low areas. Move containers from fire area if you can do it 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.) This material may burn, but does not ignite readily. For small fires, use dry chemical, carbon dioxide, water spray, or foam. For large fires, use water spray, fog, or foam.
Fire potential
Combustible material: may burn but does not ignite readily.
Hazards
Containers may explode when heated.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
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
Vomiting, hypersalivation, diarrhea, fecal incontinence and abdominal pain may occur.
   Inhalation
Dyspnea, rales, bronchorrhea, bronchospasm, or tachypnea may be noted. Noncardiogenic pulmonary edema may occur in severe cases. Chemical pneumonitis may be seen.
   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
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
PMD