Ethylphosphonothioic dichloride

  • Ethylthiophosphonic dichloride
  • Dichloroethylphosphine sulfide
  • Ethanephosphonothionodichloridic acid
  • Ethanethiophosphonodichloridic acid
Formula
C2H5Cl2PS
Structure
Description
A clear colorless liquid with a pungent odor.

Registry Numbers and Inventories.
CAS
993-43-1
EC (EINECS/ELINCS)
213-609-3
UN (DOT)
2927
Beilstein/Gmelin
1743462
Beilstein Reference
4-04-00-03540
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed

Properties.
Formula
C2H5Cl2PS
Formula mass
163.01
Boiling point, °C
177 - 178
Vapor pressure, mmHg
1.8 (25 C)
Density
1.3534 g/cm3 (20 C)
Solubility in water
Slightly soluble
Refractive index
1.5428 (20 C)
Partition coefficient, pKow
1.39
Heat of vaporization
39.1 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
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. Do not use water on material itself. Neutralize spilled material with crushed limestone, soda ash, or lime.
Stability
No data.
Incompatibilities
Incompatible with strong oxidizing agents, alcohols, amines, alkali May react vigorously or explosively

Fire.
Flash Point,°C
57
Fire fighting
Use alcohol foam, dry chemical or carbon dioxide. Do not use water on material itself. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock-down vapors. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Fire potential
This material is combustible.
Hazards
POISONOUS GASES ARE PRODUCED IN FIRE. Oxides of sulfur, phosphorus; hydrogen chloride and phosgene. Contact with water applied to adjacent fires will produce irritating fumes of hydrogen chloride.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
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
Give large amounts of water; induce vomiting; get medical attention; enforce rest for 24-36 hours.
   Inhalation
Remove victim from exposure; oxygen can be used for pulmonary symptoms with decongestants; enforce complete rest, because effects may be delayed 24 hours; similar to phosgene poisoning.
   Skin
Wash thoroughly with soap and water.
   Eyes
Flush thoroughly with water and seek medical attention; apply Pontocaine drops (1/2%) and cortisone ointment (1%).

Transport.
UN number
2927
Response guide
Hazard class
6.1
PRTC
T
Packing Group
I; II
 
USCG CHRIS Code
EPD
 
Std. Transport #
4921745