alpha-Hexachlorocyclohexane

  • alpha-1,2,3,4,5,6-Benzenehexachloride
  • alpha-1,2,3,4,5,6-Hexachlorocyclohexane
Formula
C6H6Cl6
Structure
Description
White crystalline powder.
Uses
Component of benzene hexachloride, bhc-former insecticide.

Registry Numbers and Inventories.
CAS
319-84-6
EC (EINECS/ELINCS)
206-270-8
RTECS
GV3500000
RTECS class
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Human Data
Beilstein/Gmelin
3195880
Beilstein Reference
4-05-00-00060
RCRA
U129; D013
Swiss Giftliste 1
G-1022
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H6Cl6
Formula mass
290.82
Melting point, °C
159.5 - 160
Boiling point, °C
330
Vapor pressure, mmHg
0.00173 (25 C)
Odor Threshold Odor threshold 0.088 ppm
Density
1.86 g/cm3
Solubility in water
Insoluble
Partition coefficient, pKow
3.94
Heat of fusion
26.9 kJ/mol
Heat of vaporization
55.0 kJ/mol

Hazards and Protection.
Storage
Storage location should be close to laboratory where it is to be used, so that only small amounts need to be transported. Carcinogens should be kept in only one section of storage area, explosion-proof refrigerator or freezer as required. The area should be appropriately labeled. An inventory should be kept showing the quantity of carcinogen and date it was acquired. Facilities for dispensing should be contiguous to storage area.
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
Dispensers of liquid detergent should be available. In the laboratory, gloves and protective clothing should always be worn but should not be assumed to provide full protection. Carefully fitted masks or respirators may be necessary when working with particulates or gases, and disposable plastic aprons might provide additional protection. Protective clothing should be of distinctive color, as a reminder not to be worn outside the laboratory.
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
If you spill this chemical, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with alcohol followed by washing with a strong soap and water solution. Do not reenter the contaminated 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 many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides.
Decomposition
When heated to decomposition it emits toxic fumes of hydrogen chloride.

Fire.
Flash Point,°C
158
Fire fighting
To extinguish a fire involving this chemical you may use a dry chemical, carbon dioxide, foam or halon extinguisher; a water spray may also be used.

Health.
Carcinogin
I-2B, N-2, CP65
Poison_Class
3
Exposure effects
Acute exposure - vital signs:. 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