delta-Hexachlorocyclohexane

  • delta-Benzenehexachloride
  • delta-BHC
  • Cyclohexane, delta-1,2,3,4,5,6-Hexachloro
  • Cyclohexane, 1,2,3,4,5,6-Hexachloro-delta-Isomer
  • 1-alpha,2-alpha,3-alpha,4-beta,5-alpha,6-beta-Hexachlorocyclohexane
  • delta-1,2,3,4,5,6-Hexachlorocyclohexane
Formula
C6H6Cl6
Structure
Description
Slightly musty odor.
Uses
Formerly used as an insecticide. Benzene hexachloride.

Registry Numbers and Inventories.
CAS
319-86-8
EC (EINECS/ELINCS)
206-272-9
RTECS
GV4550000
RTECS class
Agricultural Chemical and Pesticide
Beilstein/Gmelin
1907334
Beilstein Reference
4-05-00-00056
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H6Cl6
Formula mass
290.83
Melting point, °C
142
Boiling point, °C
330
Vapor pressure, mmHg
0.0003 (25 C)
Density
1.85 g/cm3
Solubility in water
Insoluble
Partition coefficient, pKow
4.14
Heat of fusion
20.1 kJ/mol
Heat of vaporization
55.0 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
Employees should be provided with and required to use dust and splash-proof safety goggles where lindane or liquids containing lindane may contact the eyes.
Respirators
Wear a NIOSH-approved half face respirator equipped with a combination filter cartridge, i.e. organic vapor/acid gas/HEPA (specific for organic vapors, HCl, acid gas, SO2 and a high efficiency particulate filter).
Small spills/leaks
You should dampen the solid spill material with acetone, then transfer the dampened material to a suitable container. Use absorbent paper dampened with acetone to pick up any remaining material. Seal your contaminated clothing and the adsorbent paper in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with acetone followed by washing with a strong soap and water solution. Do not reenter the contaminate area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Stability
No data.
Incompatibilities
Incompatible with strong oxidizing and reducing agents Incompatible with some amines, nitrides, azo/diazo compounds, with alkali metals, and with epoxides.

Fire.
Flash Point,°C
158
Fire fighting
This compound is not very flammable but any fire involving this compound may produce dangerous vapors. You should evacuate the area. All firefighters should wear full-body protective clothing and use self-contained breathing apparatuses. You should extinguish any fires involving this chemical with a dry chemical, carbon dioxide, foam, or halon extinguisher.

Health.
Exposure effects
Elevated body temperature and respiratory depression may occur with prolonged seizures. Abnormally low blood pressure may occur with severe poisoning. Central nervous system excitation, agitation, nervousness, tremor, seizures, sensory disturbances, and peripheral neuropathy may occur. Lindane did not have reproductive effects in a 3-generation rat study. It has not been teratogenic in animals. It disturbed the estrus cycle and reduced fertility in female rats. It has been detected in human breast milk. It produced degenerative changes in the testes of rats.
   Ingestion
Nausea, vomiting, diarrhea, hypersalivation, and pancreatitis may occur following ingestion.
   Skin
Extensive contact may result in dermatitis, irritation, and local hypersensitivity.
   Eyes
Lindane can irritate the eyes, nose, and throat.

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. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. 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.
USCG CHRIS Code
CLF
 
36 Halogenated hydrocarbons