Sulprofos

  • O-Ethyl O-4-(methylthio)phenyl phosphorodithionic acid S-propyl ester
  • O-Ethyl O-4-(methylmercapto)phenyl-S-n-propylphosphorothionothiolate
  • O-Ethyl O-(4-methylthiophenyl) s-Propyl dithiophosphate
Formula
C12H19O2PS3
Structure
Description
Tan-colored liquid with a sulfide-like odor.
Uses
This material is used as an insecticide.

Registry Numbers and Inventories.
CAS
35400-43-2
EC (EINECS/ELINCS)
252-545-0
RTECS
TE4165000
RTECS class
Agricultural Chemical and Pesticide; Reproductive Effector
UN (DOT)
3018
Merck
12,9164
Beilstein/Gmelin
1990231
EPA OPP
221100
Austrailia AICS
Listed

Properties.
Formula
C12H19O2PS3
Formula mass
322.45
Boiling point, °C
402
Vapor pressure, mmHg
2E-6 (25 C)
Density
1.20 g/cm3 (20 C)
Solubility in water
Slightly soluble
Refractive index
1.5859 (20 C)
Partition coefficient, pKow
4.64
Heat of vaporization
62.9 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
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
No data.

Fire.
Flash Point,°C
198
Fire fighting
Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Water spray, fog or regular 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.
Exposure limit(s)
TLV: ppm; 1 mg/m3 (as TWA) (ACGIH 1994-1995). NIOSH REL: TWA 1 mg/m3
Exposure effects
The toxological properties of this substance have not been fully investigated.
   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
I; II; III