Tetraethyl dithiopyrophosphate

  • TEDP
  • Tetraethyl pyrophsophorodithionate
  • Sulfatep
Formula
C8H20O5P2S2
Structure
Description
Pale-yellow liquid with a garlic-like odor.
Uses
Insecticide, acaricide.

Registry Numbers and Inventories.
CAS
3689-24-5
EC (EINECS/ELINCS)
222-995-2
EC Index Number
015-027-00-3
EC Class
Very toxic
RTECS
XN4375000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
UN (DOT)
1704
Merck
12,9139
Beilstein/Gmelin
1714019
RCRA
P109
EPA OPP
79501
Swiss Giftliste 1
G-2862
New Zealand
Listed

Properties.
Formula
C8H20O5P2S2
Formula mass
322.32
Boiling point, °C
319
Vapor pressure, mmHg
0.0007 (25 C)
Density
1.20 g/cm3 (20 C)
Solubility in water
7 mg/L
Refractive index
1.4753 (20 C)
Partition coefficient, pKow
3.99
Heat of vaporization
53.8 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
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. 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
146
Fire fighting
Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.
Fire potential
Combustible material: may burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
1
Exposure effects
   Ingestion
See Inhalation.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Treat ingestions of greater than 40 milligrams per kilogram with decontamination of the stomach if within 4 hours of ingestion. Administer charcoal as a slurry.
   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
1704
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
TED
 
Std. Transport #
4921481 4925292