Quinalphos

  • Diethchinalphion
  • Diethyl 2-quinoxalyl phosphorothionate
  • O,O-Diethyl O-(2-quinoxalyl) phosphorothionate
  • O,O-Diethyl-O-quinoxal-2-yl thionophosphate
Formula
C12H15N2O3PS
Structure
Description
Colorless liquid
Uses
Insecticide.

Registry Numbers and Inventories.
CAS
13593-03-8
EC (EINECS/ELINCS)
237-031-6
EC Index Number
015-138-00-7
22 36/37 45
RTECS
TF6125000
RTECS class
Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector; Primary Irritant
UN (DOT)
3018
Beilstein/Gmelin
754823
Beilstein Reference
5-23-11-00455
EPA OPP
381400
Swiss Giftliste 1
G-6777
Korea ECL
Listed

Properties.
Formula
C12H15N2O3PS
Formula mass
298.32
Melting point, °C
36
Boiling point, °C
387
Vapor pressure, mmHg
7.6E-6 (25 C)
Density
1.235 g/cm3 (20 C)
Solubility in water
Insoluble.
Refractive index
1.5624
Heat of vaporization
61.1 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide.

Fire.
Flash Point,°C
188
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
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
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
3
Exposure effects
Toxic. Very toxic by inhalation. Toxic in contact with skin and if swallowed. Highly toxic if inhaled. Toxic if absorbed through skin. Target organ(s): Heart. Central nervous system.
   Ingestion
Toxic if swallowed.
   Inhalation
Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Effects of contact or inhalation may be delayed.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact.
   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
II