Pentachloroethane

  • Pentalin
  • Ethane pentafluoride
Formula
CCl3CHCl2
Structure
Description
A colorless liquid with a chloroform-like odor.
Uses
Not currently produced commercially or imported in the United States. May be released to the environment as a combustion product of polyvinyl chloride (PVC)

Registry Numbers and Inventories.
CAS
76-01-7
EC (EINECS/ELINCS)
200-925-1
EC Index Number
602-017-00-4
EC Class
Carcinogenic Category 3; Toxic; Dangerous for the Environment
R 40 48/23 51/53
S 23 36/37 45 61
RTECS
KI6300000
RTECS class
Tumorigen; Drug; Mutagen
UN (DOT)
1669
Merck
12,7241
Beilstein/Gmelin
1736845
Beilstein Reference
4-01-00-00147
RCRA
U184
EPA OPP
598300
Swiss Giftliste 1
G-2694
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C2HCl5
Formula mass
202.29
Melting point, °C
-29
Boiling point, °C
159.8
Vapor pressure, mmHg
3.5 (25 C)
Vapor density (air=1)
7.0
Evaporization number
0.03 (diethyl ether=1)
Critical temperature
390
Critical pressure
36
Density
1.6796 g/cm3 (20 C)
Solubility in water
500 mg/L (20 C)
Viscosity
2.45 cP (20 C)
Surface tension
35.3 g/s2 (15 C)
Refractive index
1.48709 (25.1 C)
Dipole moment
0.98 D (25 C)
Dielectric constant
3.9 (20 C)
Partition coefficient, pKow
3.01
Heat of fusion
11.3 kJ/mol
Heat of vaporization
40.61 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. Do not use water. Apply water spray or mist to knock down vapors. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash, cement powder, or commercial sorbents. Water spill: Use natural barriers or oil spill control booms to limit spill travel. Remove trapped material with suction hoses.
Stability
Mixtures of pentachloroethane and sodium-potassium alloy can explode standing at room temperature and are especially sensitive to impact.
Incompatibilities
Reaction with alkalis or metals will produce a violent reaction Reacts violently with NaK alloy + bromoform Incompatible with strong oxidizing agents.
Decomposition
When heated to decomposition, emits highly toxic fumes of hydrogen chloride. Decomposition of pentachlorethane with aluminum chloride will produce chloroform.

Fire.
Flash Point,°C
52
Fire fighting
Do not extinguish fire unless flow can be stopped. Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide. Keep run-off water out of sewers and water sources.
Fire potential
Moderate when exposed to heat or flame.
Combustion products
Contain irritating and toxic chloride vapors.

Health.
Exposure limit(s)
NIOSH REL: Handle with care in the workplace. See Appendix C (Chloroethanes)
Poison_Class
1
Exposure effects
Coma, seizures, headache, dizziness, tremor, or drowsiness may occur.
   Ingestion
Nausea, vomiting, diarrhea, and abdominal pain may be noted.
   Inhalation
Respiratory irritation or lung damage may develop.
   Skin
Skin irritation may be seen.
   Eyes
Eye, nose, and throat irritation may occur.

First aid
 
   Ingestion
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
1669
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
PCE
 
36 Halogenated hydrocarbons
Std. Transport #
4921596
 
IMO Chemical Code
17
IMO Pollution Category
B
IMO Hazard code
S/P